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Fuel log graph
Efficiency log for: Helga - 2000 Volkswagen Jetta TDI
  • Lifetime Fuel Economy: 54.6 mpg (US), 4.3 L/100 km, 65.6 mpg (Imp)
  • 90-day Fuel Economy: 53.9 mpg (US), 4.4 L/100 km, 64.7 mpg (Imp)
  • 3-tank Fuel Economy: 52.6 mpg (US), 4.5 L/100 km, 63.2 mpg (Imp)
  • EPA Combined Rating / % over rating: 38 mpg (US) / 41.9% (based on 90-day fuel economy)
  • Total fills: 85
  • Average cost per gal/L: $3.93 per gal (US); $0.00 per L (price data entered for 85 fill/s)
  • Average cost per fill: $58.55
  • Average distance cost: $0.07 per mi. / $0.04 per km
  • Total fuel used: 1265.7 gal (US), 4791.2 L
  • Total distance traveled: 69109.1 mi. / 111220.3 km
  • Total cost: $4,976.79
  • Total fuel saved vs. EPA: 553 gal. (US) / 2093.3 L
  • Total saved: $2173.29 (based on avg. cost per gal./L)
  • Average tank distance: 813 mi. / 1308.5 km
Fill date Distance Fill amount Price Fuel Economy Details
2016-01-17 716.3 mi
1152.77 km
13.917 gal (US)
11.59 gal (Imp)
52.68 L
469 kWh
$1.345
($18.72 total for this fill)
51.47 mpg (US)
61.8 mpg (Imp)
4.57 L/100 km
1.94 gal (US)/100 mi
654.75 Wh/mi
Cold, wet weather. Otherwise standard commuting and running errands. Includes 5gal I got free.

SG:
- 47.8 mpg
- 15.2g
- 727mi
- 17.7hrs
- 41mph avg
- $38.0

Using SG miles with actual gallons gives 52.2mpg
2015-11-28 488.1 mi
785.52 km
8.422 gal (US)
7.01 gal (Imp)
31.88 L
283.82 kWh
$1.015
($8.55 total for this fill)
57.96 mpg (US)
69.63 mpg (Imp)
4.06 L/100 km
1.73 gal (US)/100 mi
581.48 Wh/mi
Standard commuting and running errands. Includes 5gal I got free.

SG:
- 59.8 mpg
- 8.25g
- 494mi
- 12.5hrs
- 39mph avg
- $20.6

Using SG miles with actual gallons gives 58.6mpg
2015-11-01 1089 mi
1752.58 km
21.261 gal (US)
17.7 gal (Imp)
80.48 L
716.5 kWh
$2.669
($56.75 total for this fill)
51.22 mpg (US)
61.53 mpg (Imp)
4.59 L/100 km
1.95 gal (US)/100 mi
657.94 Wh/mi
Filled up after a few partial fills. I filled on this tank, so this should even out the average between this tank and the last. Wife drove mostly, so also seeing the effect of her more aggressive driving.

SG:
- 53.9 mpg
- 20.2g
- 1091mi
- 36.4hrs
- 41mph avg
- $50.5

Using SG miles with actual gallons gives 51.3mpg
2015-09-14 811 mi
1305.18 km
14.458 gal (US)
12.04 gal (Imp)
54.73 L
487.23 kWh
$2.499
($36.13 total for this fill)
56.09 mpg (US)
67.36 mpg (Imp)
4.19 L/100 km
1.78 gal (US)/100 mi
600.78 Wh/mi
Battery died, wiping out the details of this tank. Battery probably died because of the amount of cranking I had to do after I replaced the seals of the injection pump. Took a while for the fuel to reach the cylinders.

Wife filled up, so the fillup was probably not as consistent as the times when I filled up.
2015-08-07 844 mi
1358.29 km
15.248 gal (US)
12.7 gal (Imp)
57.72 L
513.86 kWh
$2.599
($39.63 total for this fill)
55.35 mpg (US)
66.46 mpg (Imp)
4.25 L/100 km
1.81 gal (US)/100 mi
608.84 Wh/mi
Helga was down for ~2 months as I replaced the injection pump seals and the front wheel bearing. This was the first fillup after she got on the road. HPR Diesel does seem to give a much smoother idle as soon as the car starts.

I think as a result of replacing the seals, the IP is out of adjustment... that's why the SG values are so different from actuals.

SG:
- 65.3 mpg
- 13.1g
- 857mi
- 21.8hrs
- 39mph avg
- $40.6

Using SG miles with actual gallons gives 56.2mpg
2015-05-15 701.6 mi
1129.12 km
14.075 gal (US)
11.72 gal (Imp)
53.28 L
474.33 kWh
$3.099
($43.62 total for this fill)
49.85 mpg (US)
59.86 mpg (Imp)
4.72 L/100 km
2.01 gal (US)/100 mi
676.07 Wh/mi
Had a first fill with HPR last time, and discovered at this fill that my Injection Pump seals started to leak... not just a little, but a lot! Doing some reading, discovered that biodiesel will swell the seals while ULSD will shrink them... since HPR is very similar to ULSD, I'm guessing that was the cause. So Helga is down until I can get the seals replaced. <Argh!>

SG:
- 48.1 mpg
- 14.7g
- 712mi
- 17.1hrs
- 41mph avg
- $39.90

Using SG miles with actual gallons gives 50.6mpg
2015-04-04 851 mi
1369.55 km
16.036 gal (US)
13.35 gal (Imp)
60.7 L
540.41 kWh
$2.723
($43.67 total for this fill)
53.07 mpg (US)
63.75 mpg (Imp)
4.43 L/100 km
1.88 gal (US)/100 mi
635.03 Wh/mi
No need to fill since January... how cool is that?!? My wife drove mostly, so as is typical, the FE for this tank is lower than average.

First fill with the new HPR (High Performance Renewable) Diesel fuel from Propel; will see how it goes.

SG:
- 51.6 mpg
- 16.7g
- 863mi
- 22.1hrs
- 39mph avg
- $46.80

Using SG miles with actual gallons gives 53.8mpg
2015-01-25 745.9 mi
1200.41 km
13.458 gal (US)
11.21 gal (Imp)
50.94 L
453.53 kWh
$2.799
($37.67 total for this fill)
55.42 mpg (US)
66.54 mpg (Imp)
4.24 L/100 km
1.8 gal (US)/100 mi
608.03 Wh/mi
Once again, not much driving. One trip to Reno; averaged over 60mpg according to the SG on that trip.

SG:
- 57.6 mpg
- 13.1g
- 757mi
- 19.0hrs
- 40mph avg
- $45.90

Using SG miles with actual gallons gives 56.2mpg
2014-12-10 872.7 mi
1404.47 km
15.738 gal (US)
13.1 gal (Imp)
59.57 L
530.37 kWh
$3.499
($55.07 total for this fill)
55.45 mpg (US)
66.62 mpg (Imp)
4.24 L/100 km
1.8 gal (US)/100 mi
607.73 Wh/mi
Very little driving; nearly 2 months since last fillup

SG:
- 60.1 mpg
- 14.8g
- 894mi
- 24.7hrs
- 36mph avg
- $58.00

Using SG miles with actual gallons gives 56.8mpg
2014-10-11 961.5 mi
1547.38 km
18.18 gal (US)
15.14 gal (Imp)
68.82 L
612.67 kWh
$3.89
($70.72 total for this fill)
52.89 mpg (US)
63.51 mpg (Imp)
4.45 L/100 km
1.89 gal (US)/100 mi
637.2 Wh/mi
Did a partial fill, so price per gallon does not look like a std price.

SG:
- 53.8 mpg
- 18.0g
- 975mi
- 25.9hrs
- 37mph avg
- $72.30

Using SG miles with actual gallons gives 53.63mpg
2014-09-05 784.2 mi
1262.05 km
14.904 gal (US)
12.41 gal (Imp)
56.42 L
502.26 kWh
$3.999
($59.6 total for this fill)
52.62 mpg (US)
63.19 mpg (Imp)
4.47 L/100 km
1.9 gal (US)/100 mi
640.47 Wh/mi
Keeping busy with school... not much time for FE mods lately...
2014-08-08 833.1 mi
1340.74 km
16.337 gal (US)
13.6 gal (Imp)
61.84 L
550.56 kWh
$4.023
($65.72 total for this fill)
50.99 mpg (US)
61.26 mpg (Imp)
4.61 L/100 km
1.96 gal (US)/100 mi
660.86 Wh/mi
Most driving done by my wife, so low FE this tank.

Did a partial fill, so price per gallon does not look like a std price.

SG:
- 52.8 mpg
- 15.9g
- 844mi
- 22.6hrs
- 37mph avg
- $64.9

Using SG miles with actual gallons gives 51.66mpg
2014-07-04 968 mi
1557.84 km
16.135 gal (US)
13.44 gal (Imp)
61.08 L
543.75 kWh
$4.073
($65.72 total for this fill)
59.99 mpg (US)
72.02 mpg (Imp)
3.92 L/100 km
1.67 gal (US)/100 mi
561.73 Wh/mi
Return from Spokane. Went through the middle of Portland, encountering a huge amount of traffic along the way... 8^(

Did a partial fill, so price per gallon does not look like a std price.

SG:
- 57.9 mpg
- 16.9g
- 984mi
- 16.2hrs
- 60mph avg
- $66.7

Using SG miles with actual gallons gives 60.98mpg
2014-07-01 871.1 mi
1401.9 km
14.067 gal (US)
11.71 gal (Imp)
53.25 L
474.06 kWh
$3.929
($55.27 total for this fill)
61.93 mpg (US)
74.39 mpg (Imp)
3.8 L/100 km
1.61 gal (US)/100 mi
544.21 Wh/mi
Trip to Spokane.

Still have a noisy front end, but made it no problem. Haven't been able to figure out what is causing the problem.

Scangauge:
- 61.2mpg
- 14.4g
- 886mi
- 15.8hrs
- 56mph avg
- $58.70

Using Scangauge miles with actual fuel yields 62.98mpg
2014-06-24 572.7 mi
921.67 km
10.999 gal (US)
9.16 gal (Imp)
41.64 L
370.67 kWh
$4.059
($44.64 total for this fill)
52.07 mpg (US)
62.52 mpg (Imp)
4.52 L/100 km
1.92 gal (US)/100 mi
647.23 Wh/mi
Fill before trip to Spokane

Scangauge:
- 51.5mpg
- 11.2g
- 579mi
- 14.7hrs
- 39mph avg
- $45.7

Using Scangauge miles with actual fuel yields 52.64mpg.
2014-05-31 845.3 mi
1360.38 km
15.738 gal (US)
13.1 gal (Imp)
59.57 L
530.37 kWh
$4.073
($64.1 total for this fill)
53.71 mpg (US)
64.53 mpg (Imp)
4.38 L/100 km
1.86 gal (US)/100 mi
627.43 Wh/mi
Most of the driving this tank was done by my wife, so the average is down a bit.

Did a partial fill, so price per gallon does not look like a std price.

SG:
- 53.8 mpg
- 15.8g
- 855mi
- 22.6hrs
- 37mph avg
- $64.4

Using SG miles with actual gallons gives 54.3mpg
2014-04-28 872.7 mi
1404.47 km
15.606 gal (US)
13 gal (Imp)
59.08 L
525.92 kWh
$4.059
($63.34 total for this fill)
55.92 mpg (US)
67.13 mpg (Imp)
4.21 L/100 km
1.79 gal (US)/100 mi
602.64 Wh/mi
No school for a week, but had a few long drives during the week off... rest of the time it was an even mix of driving between my wife & I.

Beginning with this fillup, I am trying out some interior mirrors which are allowing me to fold the exterior mirrors on long trips. My wife is not comfortable using interior mirrors only, so it'll be a mix of driving with exterior mirrors extended and folded

SG:
- 56.7 mpg
- 15.5g
- 885mi
- 22.8hrs
- 39mph avg
- $62.30

Using SG miles with actual gallons gives 56.7mpg
2014-04-12 914.9 mi
1472.39 km
15.75 gal (US)
13.11 gal (Imp)
59.62 L
530.78 kWh
$3.991
($62.86 total for this fill)
58.09 mpg (US)
69.79 mpg (Imp)
4.05 L/100 km
1.72 gal (US)/100 mi
580.15 Wh/mi
Again, a fairly even mix of driving between my wife and I. A couple of long journeys by me also helped bump the FE a little.

Did partial fill during this tank, which is why the odd price per gallon

SG:
- 57.1 mpg
- 16.2g
- 928mi
- 25.7hrs
- 35mph avg
- $64.90

Using SG miles with actual gallons gives 58.9mpg
2014-03-22 994.9 mi
1601.14 km
17.882 gal (US)
14.89 gal (Imp)
67.69 L
602.62 kWh
$4.028
($72.03 total for this fill)
55.64 mpg (US)
66.82 mpg (Imp)
4.23 L/100 km
1.8 gal (US)/100 mi
605.71 Wh/mi
A fairly even mix of driving between my wife and I. A couple of long journeys also helped bump the FE a little.

Did partial fill during this tank, which is why the odd price per gallon

SG:
- 55.7 mpg
- 18.1g
- 1009mi
- 27.0hrs
- 37mph avg
- $72.40

Using SG miles with actual gallons gives 56.4mpg
2014-02-22 963.3 mi
1550.28 km
18.118 gal (US)
15.09 gal (Imp)
68.58 L
610.58 kWh
$3.972
($71.96 total for this fill)
53.17 mpg (US)
63.84 mpg (Imp)
4.42 L/100 km
1.88 gal (US)/100 mi
633.84 Wh/mi
Primarily driven by my wife this tank, so not as good FE as what is possible.

Getting some clunking noise from front again (recently had replaced the axle due to this noise). Presumably, since it is making noise, energy is being consumed to make the noise and therefore affecting the FE.

Did partial fill, which is why the odd price per gallon

SG:
- 54.2 mpg
- 17.9g
- 973mi
- 25.6hrs
- 38mph avg
- $71.80

Using SG miles with actual gallons gives 53.7mpg
2014-01-22 816.1 mi
1313.39 km
15.546 gal (US)
12.95 gal (Imp)
58.85 L
523.9 kWh
$3.999
($62.17 total for this fill)
52.5 mpg (US)
63.02 mpg (Imp)
4.48 L/100 km
1.9 gal (US)/100 mi
641.96 Wh/mi
Primarily driven by my wife this tank, so not as good FE as what is possible.

SG:
- 51.9 mpg
- 15.9g
- 828mi
- 21hrs
- 39mph avg
- $63.70

Using SG miles with actual gallons gives 53.3mpg
2013-12-22 836.1 mi
1345.57 km
14.754 gal (US)
12.29 gal (Imp)
55.85 L
497.21 kWh
$3.999
($59 total for this fill)
56.67 mpg (US)
68.03 mpg (Imp)
4.15 L/100 km
1.76 gal (US)/100 mi
594.68 Wh/mi
Shared driving between my wife & I, with one longer trip to the Napa Valley area. Mostly commuting to school and running errands.

SG:
- 58.9 mpg
- 14.3g
- 848mi
- 22.2hrs
- 38mph avg
- $57.00

Using SG miles with actual gallons gives 57.5mpg
2013-12-01 909.6 mi
1463.86 km
17.56 gal (US)
14.62 gal (Imp)
66.47 L
591.77 kWh
$3.959
($69.52 total for this fill)
51.8 mpg (US)
62.22 mpg (Imp)
4.54 L/100 km
1.93 gal (US)/100 mi
650.58 Wh/mi
My wife drove most of the miles on this tank, so FE is a bit low. Twice weekly trips of ~50 miles along mountainous roads. Rest of the tank was commuting to school. Had to do a quick fill of about a gallon in order to make it to my favorite biodiesel station, so this entry combines both.

SG:
- 56.4 mpg
- 16.3g
- 923mi
- 24.5hrs
- 37mph avg
- $65.2

Using SG miles with actual gallons gives 52.6mpg
2013-11-05 960.8 mi
1546.26 km
15.824 gal (US)
13.18 gal (Imp)
59.9 L
533.27 kWh
$3.999
($63.28 total for this fill)
60.72 mpg (US)
72.9 mpg (Imp)
3.87 L/100 km
1.65 gal (US)/100 mi
555.03 Wh/mi
First part of this tank included a few trips to the Bay Area; averaged between 65 and 70 mpg over about 440 miles. Changed the tune at about that time which also may have boosted the FE but screwed up the calibration on the SG.
Since then, the tank was primarily commuting back & forth to school, with a fairly even mix of driving between my wife & I. Also a few longer trips but on back roads.

SG:
- 57.1 mpg
- 17g
- 976mi
- 22.6hrs
- 43mph avg
- $70

Using SG miles with actual gallons gives 61.7mpg
2013-10-13 862.6 mi
1388.22 km
16.034 gal (US)
13.35 gal (Imp)
60.7 L
540.35 kWh
$4.099
($65.72 total for this fill)
53.8 mpg (US)
64.61 mpg (Imp)
4.37 L/100 km
1.86 gal (US)/100 mi
626.42 Wh/mi
This tank was primarily commuting, with a fairly even mix of driving between my wife & I. Since school started for both of us, the car has been driven more so a little less time between fillups...

SG:
- 57.7 mpg
- 15.1g
- 873mi
- 24.2hrs
- 36mph avg
- $62.9

Using SG miles with actual gallons gives 54.4mpg

**NOTE**: With this tank, I have now driven over 48,000 miles with this car. At a $0.10 per mile savings compared to my other car, RippinRoo, which used to be my daily driver, I have now recovered the purchase cost of Helga in fuel savings alone. It's all gravy from here on out.
2013-09-13 872 mi
1403.35 km
16.907 gal (US)
14.08 gal (Imp)
64 L
569.77 kWh
$4.182
($70.71 total for this fill)
51.58 mpg (US)
61.93 mpg (Imp)
4.56 L/100 km
1.94 gal (US)/100 mi
653.41 Wh/mi
Wow! Over two months since the last fillup!!

This tank was primarily commuting, with a fairly even mix of driving between my wife & I... maybe driven a little more by me. The starter died on it during this tank, so there were a couple of weeks that only I drove it, and not very often at that (my wife doesn't like bump-starting on her own). More moderate temperatures allowed for less AC while still being favorably warm for FE.

Since I had to disconnect the battery for replacing the starter (which resets the trip odo on the car), went with the SG miles since last fill.

SG:
- 55.2 mpg
- 15.7g
- 872mi
- 25hrs
- 35mph avg
- $63.2
2013-07-07 824.8 mi
1327.39 km
15.659 gal (US)
13.04 gal (Imp)
59.28 L
527.71 kWh
$3.999
($62.62 total for this fill)
52.67 mpg (US)
63.25 mpg (Imp)
4.47 L/100 km
1.9 gal (US)/100 mi
639.8 Wh/mi
Sadly, a low FE tank. I was out of commission for a couple of weeks, so my wife drove most of this tank. Along with her typically lower FE, conditions were not favorable, with abnormally high temperatures (requiring nearly constant AC, especially since my wife was driving). Coupled with nearly all errands (no long trips on this tank), the tank FE was relatively poor.

SG:
- 54.7mpg
- 15.1g
- 830mi
- 21.1hrs
- 39mph avg
-$60.7

Using SG miles with actual gallons gives 53mpg.
2013-05-29 975.3 mi
1569.59 km
15.535 gal (US)
12.94 gal (Imp)
58.81 L
523.53 kWh
$3.999
($62.12 total for this fill)
62.78 mpg (US)
75.37 mpg (Imp)
3.75 L/100 km
1.59 gal (US)/100 mi
536.79 Wh/mi
This tank included several trips to the Bay Area (~290 miles round trip each). Typically, the trips out to the Bay Area resulted in high (~70mpg, according to ScanGauge) FE figures, but the return trip included a lot of stop&go traffic so return FE wasn't as good as it could have been. Still, even the return trips were ~64mpg, helping boost the tank FE.

Rest of the tank included the typical errands, where getting high FE is difficult.

Scangauge:
- 61.2mpg
- 16.1g
- 991 mi
- 22.1hrs
- 45mph avg
- $64.70
Using actual gallons with Scangauge miles gives 63.8mpg
2013-05-17 947.3 mi
1524.53 km
15.759 gal (US)
13.12 gal (Imp)
59.65 L
531.08 kWh
$3.999
($63.02 total for this fill)
60.11 mpg (US)
72.2 mpg (Imp)
3.91 L/100 km
1.66 gal (US)/100 mi
560.62 Wh/mi
After the trip to St. Louis, the tires (Bridgestone Ecopia EP100s) were clearly 'done' (45,000 miles; tires were spec'd for 50,000). Also, it was obvious that the alignment was off as the tires were worn unevenly just in the (relatively) short drive out there and back. So during this tank, I replaced the tires (Bridgestone Ecopia EP422s) and then had an alignment done.

Early part of the tank was mostly errand-running and several trips into the office (e.g. commuting). Took a few longer trips to the Bay Area toward the end of this tank; thought I'd have a much higher tank FE, but I think I might have under-filled the last tank a little (thereby yielding a fairly high FE value) and then over-filled this tank (thereby yielding a fairly low FE value). Guess I need to come up with a way to be more consistent!

Scangauge was off, possibly as a result of going from pure dino-diesel to mostly B20.

Scangauge:
- 64.4mpg
- 14.9gg
- 962mi
- 22.7hrs
- 42mph avg
- $61.20
Using actual gallons with SG miles gives 61.0mpg.
2013-05-02 428.1 mi
688.96 km
5.891 gal (US)
4.91 gal (Imp)
22.3 L
198.53 kWh
$4.099
($24.15 total for this fill)
72.67 mpg (US)
87.19 mpg (Imp)
3.24 L/100 km
1.38 gal (US)/100 mi
463.75 Wh/mi
Mostly the remainder of the trip from St. Louis back home. The majority of the trip was on the freeway and with climbing (over the Sierra Nevadas) up to 7,190ft and then descending into the Sacramento Valley. Decided to fill at the half tank so I could get an FE number that is nearly all related to the trip and doesn't have a bunch of errand-running mixed in.

Filled up in Placerville, CA at about 1,870ft.

Scangauge:
- 69.0mpg
- 6.3g
- 435mi
- 7.2hrs
- 60mph avg
- $25.60
Using actual gallons with SG miles gives 73.8mpg (!).
2013-04-30 846.4 mi
1362.15 km
14.892 gal (US)
12.4 gal (Imp)
56.37 L
501.86 kWh
$4.059
($60.45 total for this fill)
56.84 mpg (US)
68.26 mpg (Imp)
4.14 L/100 km
1.76 gal (US)/100 mi
592.93 Wh/mi
Second half of the drive from St. Louis back home. Nearly all freeway, with a lot of cross-winds over the flat areas of the route and a few construction areas.

Filled up in Carlin, NV at 5,086ft, which is about 400 miles from home. Probably could have done another 200 miles, but stations are a bit spread out in Nevada & I didn't want to take a chance.

Scangauge:
- 62.6mpg
- 13.7g
- 860mi
- 13.2hrs
- 65mph avg
- $53.60
Using actual gallons with SG miles gives 62.77mpg
2013-04-29 976 mi
1570.72 km
15.235 gal (US)
12.69 gal (Imp)
57.67 L
513.42 kWh
$3.909
($59.55 total for this fill)
64.06 mpg (US)
76.91 mpg (Imp)
3.67 L/100 km
1.56 gal (US)/100 mi
526.05 Wh/mi
First half of return drive from St. Louis back home. Cross-winds were fierce on this leg, with "gusts up to 55+ mph" according to the variable message signs on the freeway. Also a few construction areas that slowed down traffic to a near stop at times.

Filled up in Ogallala, NE which is at 3,222ft.

Scangauge:
- 58.9mpg
- 16.8g
- 992mi
- 16.7hrs
- 59mph avg
- $62.20
Using actual gallons used with SG miles yields 65.1mpg
2013-04-25 860.2 mi
1384.36 km
13.404 gal (US)
11.16 gal (Imp)
50.74 L
451.71 kWh
$3.699
($49.58 total for this fill)
64.17 mpg (US)
77.08 mpg (Imp)
3.67 L/100 km
1.56 gal (US)/100 mi
525.12 Wh/mi
Second half of drive to St Louis. First part of the tank was looking really good; up to 68mpg according to the Scangauge. But then the high winds across the plains of Kansas and the rolling hills in Missouri (which I was too tired to take advantage of) knocked the FE down. Filled up about 250 miles shy of the target city; probably could have made it but didn't feel like looking for fuel at midnight in downtown St Louis.

Scangauge:
- 61.1mpg
- 14.2g
- 874mi
- 13.9hrs
- 62mph avg
- $55.70

Actual gallons with SG miles gives 65.2mpg. Whenever I switch to dino-diesel from bio-diesel, the SG gets confused and shows noticeably different fuel used vs actual.
2013-04-24 922.1 mi
1483.98 km
14.739 gal (US)
12.27 gal (Imp)
55.79 L
496.7 kWh
$3.899
($57.47 total for this fill)
62.56 mpg (US)
75.15 mpg (Imp)
3.76 L/100 km
1.6 gal (US)/100 mi
538.66 Wh/mi
First half of the trip east. Mostly 2-lane roads with speed limits around 65 - 75mph. Stayed at or near the speed limit most of the time; occasionally drove behind large trucks, but that was rare.

Scangauge:
- 62.8mpg
- 14.9g
- 938mi
- 15.6hrs
- 60mph avg
Using SG miles (which should be more accurate) with actual gallons gives 63.6mpg
2013-04-23 124.3 mi
200.04 km
2.521 gal (US)
2.1 gal (Imp)
9.54 L
84.96 kWh
$4.159
($10.48 total for this fill)
49.31 mpg (US)
59.19 mpg (Imp)
4.77 L/100 km
2.03 gal (US)/100 mi
683.51 Wh/mi
First fillup after mods. Filled up with B20 in preparation for my long trip to the east. Mods performed prior to the trip:
- lower viscosity oil
- higher temp thermostat
- lowered suspension
- removed muffler
- added undertray from axle back to rear bumper

Scangauge:
- 52 mpg
- 2.42g
- 125mi
- 3.8 hrs
- 32 mph avg
2013-03-28 928.4 mi
1494.11 km
15.5 gal (US)
12.91 gal (Imp)
58.67 L
522.35 kWh
$4.159
($64.46 total for this fill)
59.9 mpg (US)
71.91 mpg (Imp)
3.93 L/100 km
1.67 gal (US)/100 mi
562.63 Wh/mi
Oh so close to 60mpg!!. This tank had a few long distance trips but was mostly around town errands (note that nearly any errand includes some freeway). I drove most of this tank, which helped the overall FE quite a bit!

Scangauge data:
- 60mpg
- 15.6g
- 942mi
- 24 hours
- 39mph avg

Using SG miles with actual gallons gives 60.8mpg
2013-03-03 1003.7 mi
1615.3 km
16.138 gal (US)
13.44 gal (Imp)
61.09 L
543.85 kWh
$4.199
($67.76 total for this fill)
62.19 mpg (US)
74.68 mpg (Imp)
3.78 L/100 km
1.61 gal (US)/100 mi
541.85 Wh/mi
Yay! My second 1000+ mile tank! A few long freeway trips on this tank, driving at ~60mph and behind large vehicles when possible.

Scangauge data:
- 62mpg
- 16.4g
- 1019 mi
- 23.5 hours
- 43mph avg

Using SG miles with actual gallons gives 63.1mpg
2013-02-16 898.3 mi
1445.67 km
15.86 gal (US)
13.21 gal (Imp)
60.04 L
534.48 kWh
$4.259
($67.55 total for this fill)
56.64 mpg (US)
68 mpg (Imp)
4.15 L/100 km
1.77 gal (US)/100 mi
594.99 Wh/mi
I was the primary driver for this tank.

SG data:
- 57.1mpg
- 15.9g
- 910mi
- 25.1 hrs
- 36mph avg
2013-01-21 690.1 mi
1110.61 km
15.312 gal (US)
12.75 gal (Imp)
57.96 L
516.01 kWh
$4.099
($62.76 total for this fill)
45.07 mpg (US)
54.13 mpg (Imp)
5.22 L/100 km
2.22 gal (US)/100 mi
747.73 Wh/mi
Finally was able to do a fill myself. Filled up with B20. Hope to get a more accurate FE reading next time. We've had some very cold (for NorCal) weather for the past 3 weeks.
2012-12-18 733 mi
1179.65 km
13.169 gal (US)
10.97 gal (Imp)
49.85 L
443.8 kWh
$3.899
($51.35 total for this fill)
55.66 mpg (US)
66.82 mpg (Imp)
4.23 L/100 km
1.8 gal (US)/100 mi
605.46 Wh/mi
Fillup with regular dino-diesel by my wife. Used mostly for commuting and for some driver training for our son.
2012-12-05 779 mi
1253.68 km
14.472 gal (US)
12.05 gal (Imp)
54.78 L
487.71 kWh
$4.159
($60.19 total for this fill)
53.83 mpg (US)
64.65 mpg (Imp)
4.37 L/100 km
1.86 gal (US)/100 mi
626.07 Wh/mi
Commuting done by my wife. Fillup with standard dino-diesel (instead of bio-diesel). Fillup done by my wife.
2012-11-06 858 mi
1380.82 km
15.678 gal (US)
13.06 gal (Imp)
59.35 L
528.35 kWh
$4.299
($67.4 total for this fill)
54.73 mpg (US)
65.7 mpg (Imp)
4.3 L/100 km
1.83 gal (US)/100 mi
615.79 Wh/mi
Another tank of commuting done mostly by my wife.

SG Data:
- 56.9mpg
- 15.2g
- 869mi
- 21.8hrs
- 40mph avg

Using SG miles and actual gallons gives 55.4mpg
2012-10-12 858.6 mi
1381.78 km
15.888 gal (US)
13.23 gal (Imp)
60.14 L
535.43 kWh
$4.479
($71.16 total for this fill)
54.04 mpg (US)
64.9 mpg (Imp)
4.35 L/100 km
1.85 gal (US)/100 mi
623.61 Wh/mi
Mostly driven by my wife for errands and commuting to school

Scangauge data:
- 54.6mpg
- 15.7g
- 859mi
- 22.5hrs
- 38mph avg
2012-09-21 928.4 mi
1494.11 km
15.497 gal (US)
12.9 gal (Imp)
58.66 L
522.25 kWh
$4.499
($69.72 total for this fill)
59.91 mpg (US)
71.97 mpg (Imp)
3.93 L/100 km
1.67 gal (US)/100 mi
562.53 Wh/mi
Did a few EO(ff)Cs, just to get a feel for it. Unfortunately, the Scangauge does not record miles when engine is off, so have to depend on the odo, which is off by ~3%.

This tank also included a longish trip where I averaged over 65mpg each way. Definitely helped with the overall average!

Scangauge data:
- 59mpg
- 15.5g
- 919 mi
- 23.1 hours
- 39mph avg

Using SG miles with actual gallons gives 59.3mpg
2012-08-31 929.2 mi
1495.4 km
16.632 gal (US)
13.85 gal (Imp)
62.96 L
560.5 kWh
$4.399
($73.16 total for this fill)
55.87 mpg (US)
67.09 mpg (Imp)
4.21 L/100 km
1.79 gal (US)/100 mi
603.21 Wh/mi
More than a month since the last fill! That is partly because the bolts loosened in the axle and I needed to get a special tool to re-tighten them... it took 2 weeks to get the tool!

A few trips to bring the kid to school, but since school started in mid-August, the rest the tank was regular errand runs.

Scangauge data:
- 58.7mpg
- 15.6g
- 922 mi
- 24.2 hours
- 38mph avg

Using SG miles with actual gallons gives 55.4mpg
2012-07-14 715.7 mi
1151.81 km
15.737 gal (US)
13.1 gal (Imp)
59.57 L
530.34 kWh
$3.799
($59.78 total for this fill)
45.48 mpg (US)
54.63 mpg (Imp)
5.17 L/100 km
2.2 gal (US)/100 mi
741.01 Wh/mi
Another fill where the driving was done primarily by my wife and my son (with my son just learning to drive). A lot of practice driving, with fairly low (between 30 and 40mpg) FE.

Scangauge values spanning two tanks:
- 50MPG
- 27.9g
- 1399mi
- 10.7hrs
2012-06-21 778 mi
1252.07 km
14.405 gal (US)
11.99 gal (Imp)
54.53 L
485.45 kWh
$3.999
($57.61 total for this fill)
54.01 mpg (US)
64.89 mpg (Imp)
4.36 L/100 km
1.85 gal (US)/100 mi
623.97 Wh/mi
Filled at a different station by a different driver than usual. No Scangauge data captured. This tank used mostly for errands and driver training.
2012-05-27 937.4 mi
1508.6 km
15.807 gal (US)
13.16 gal (Imp)
59.84 L
532.7 kWh
$4.399
($69.53 total for this fill)
59.3 mpg (US)
71.23 mpg (Imp)
3.97 L/100 km
1.69 gal (US)/100 mi
568.27 Wh/mi
A lot of commuting this tank, but also two trips to SF for Maker Faire. Most of the commuting was done by my wife.

SG Data:
- 57.8mpg
- 16.4gal
- 951mi
- 19.9 hrs
- 47mph avg

Using SG miles plus actual gallons yields 60.2 mpg
2012-05-17 844.2 mi
1358.61 km
16.393 gal (US)
13.65 gal (Imp)
62.05 L
552.44 kWh
$4.399
($72.11 total for this fill)
51.5 mpg (US)
61.85 mpg (Imp)
4.57 L/100 km
1.94 gal (US)/100 mi
654.39 Wh/mi
This tank consisted of nearly all commuting, with most of that being done by my wife. Also included several miles of 'driver training', which averaged about 30 - 35mpg.

About 3/4 through the tank, removed the front air dam (which I had installed prior to the long road trip); it didn't seem to contribute to better FE, was relatively ugly, and constantly scraped on bumps, curbs, etc.

SG Data:
- 51.2mpg
- 16.6gal
- 853mi
- 22.4 hrs
- 38mph avg

Using SG miles plus actual gallons yields 52.0 mpg
2012-05-04 401.1 mi
645.51 km
7.097 gal (US)
5.91 gal (Imp)
26.87 L
239.17 kWh
$4.359
($30.94 total for this fill)
56.52 mpg (US)
67.87 mpg (Imp)
4.16 L/100 km
1.77 gal (US)/100 mi
596.29 Wh/mi
Includes the last portion of the our road trip, from Reno NV to home, which was nearly all downhill and gave about 80mpg over 130 miles. The rest was the same commuting as was typically done.

SG Data:
- 61.5mpg
- 6.63gal
- 408mi
- 9.4 hrs
- 43mph avg

Using SG miles plus actual gallons yields 57.49mpg
2012-04-30 886.7 mi
1427.01 km
16.021 gal (US)
13.34 gal (Imp)
60.65 L
539.91 kWh
$4.169
($66.79 total for this fill)
55.35 mpg (US)
66.47 mpg (Imp)
4.25 L/100 km
1.81 gal (US)/100 mi
608.9 Wh/mi
Drive from Laramie, WY to Sparks, NV. Used AC for about 20% of the drive. Drove between 65 and 70mph. Elevation change was ~3850ft lower. Was surprised how poor the FE was, probably due to the #1 Diesel I had to fill up with last time. Higher avg speed and strong winds also contributed.

SG Data:
- 59.6 mpg
- 15gal
- 901mi
- 13.3 hrs
- 68mph avg

Using SG miles plus actual gallons yields 56.24mpg
2012-04-30 921.2 mi
1482.53 km
14.52 gal (US)
12.09 gal (Imp)
54.96 L
489.32 kWh
$3.919
($56.9 total for this fill)
63.44 mpg (US)
76.2 mpg (Imp)
3.71 L/100 km
1.58 gal (US)/100 mi
531.18 Wh/mi
Drive from St. Louis to Laramie, WY. Drove about 65mph during this section; elevation change was 5700ft increase between start and end point. AC was not used at all. Ran into light to heavy rains during the first 4 or 5 hours of this trip.

Only option to fill up here was #1 Diesel, which severely impacted the FE for the next portion of the drive.

SG data:
- 64.8mpg
- 14.4gal
- 937 mi
- 14.4 hrs
- 65mph avg

Using the miles given by the SG and the actual amount filled gives 64.53mpg
2012-04-29 492.1 mi
791.96 km
7.732 gal (US)
6.44 gal (Imp)
29.27 L
260.57 kWh
$3.799
($29.37 total for this fill)
63.64 mpg (US)
76.41 mpg (Imp)
3.7 L/100 km
1.57 gal (US)/100 mi
529.51 Wh/mi
Fillup before leaving St. Louis. This is fuel used between Edmonds, OK and St Louis, MO. End point is 700ft lower than begin point.

SG:
- 62.1mpg
- 8.05g
- 500mi
- 8.2hr
- 61mph avg

Using the SG miles and the actual gallons yields 64.67mpg
2012-04-25 874.7 mi
1407.69 km
12.789 gal (US)
10.65 gal (Imp)
48.41 L
430.99 kWh
$3.739
($47.82 total for this fill)
68.39 mpg (US)
82.13 mpg (Imp)
3.44 L/100 km
1.46 gal (US)/100 mi
492.73 Wh/mi
Drive from Flagstaff, AZ to Edmond, OK. All freeway, driving between 65 and 70 mph. End point altitude is about 5000ft lower than the starting point.
Scangauge data:
- 66.7mpg
- 13.3gal
- 889mi
- 13.6 hrs
- 65mph avg

Pure dino diesel seems to throw off the SG... it used to be accurate with B20.
2012-04-24 866 mi
1393.69 km
14.647 gal (US)
12.2 gal (Imp)
55.44 L
493.6 kWh
$4.259
($62.38 total for this fill)
59.12 mpg (US)
70.98 mpg (Imp)
3.98 L/100 km
1.69 gal (US)/100 mi
569.98 Wh/mi
Included about 100 miles of errands. The rest was part of a cross country trip, from Sacramento area toward St Louis. This leg was about 786 miles, from Sacramento to Flagstaff, AZ. Elevation change was 6000 ft gain from start point to end point. Part way in, the front edge of the rear belly pan came off, which turned it into a big parachute (allowing air to enter and then exit out the sides). Drove about 3 hours with it that way, until I could stop at a rest stop to take it off.

Scangauge data:
56.7 mpg
15.5g
880mi
15.4hrs
57mph avg
2012-04-21 846.1 mi
1361.67 km
15.643 gal (US)
13.03 gal (Imp)
59.22 L
527.17 kWh
$4.399
($68.81 total for this fill)
54.09 mpg (US)
64.93 mpg (Imp)
4.35 L/100 km
1.85 gal (US)/100 mi
623.06 Wh/mi
Scangauge results:
- 54.3mpg
- 15.5gal
- 847mi
- 22.2 hrs
- 38mph avg

Discovered on this tank that discrepancy between odo miles and gps miles is ~+5% (gps shows more miles traveled than odo). This means I'm getting about 5% better FE than I thought (at least that's what I think it means!). I've set the Scangauge to show miles according to the GPS, but will still use odo miles for the fuel log.

This tank was purely commuting, with my wife driving most of the miles.
2012-04-08 1003.9 mi
1615.62 km
15.946 gal (US)
13.28 gal (Imp)
60.36 L
537.38 kWh
$4.439
($70.78 total for this fill)
62.96 mpg (US)
75.59 mpg (Imp)
3.74 L/100 km
1.59 gal (US)/100 mi
535.29 Wh/mi
A-MA-ZING!! First time I've broken 1000 miles on a single tank! This tank primarily consisted of long drives on the freeway at ~60mph, which got me between 60 and 70mpg avg (68mpg for 280 miles and 63mpg for 190 miles, according to the Scangauge, for example). Still have some relatively easy aeromods that I can do (and will try to do) before the next long trip scheduled toward the end of April.
2012-03-30 927 mi
1491.86 km
16.544 gal (US)
13.78 gal (Imp)
62.63 L
557.53 kWh
$4.439
($73.44 total for this fill)
56.03 mpg (US)
67.27 mpg (Imp)
4.2 L/100 km
1.78 gal (US)/100 mi
601.43 Wh/mi
A few more long freeway drives on this tank, plus I did most of the driving this time. Also the second tank over 900 miles!! Pretty awesome!

Added a skid plate and a coolant preheater about mid way through this tank. Both helped FE noticeably (though I don't use the coolant preheater every single morning... When I do, I use it for ~30 min before leaving)

SG values: 16.3gal, 932mi, 22.4hrs, 41mph avg
2012-03-20 896.5 mi
1442.78 km
16.05 gal (US)
13.37 gal (Imp)
60.76 L
540.89 kWh
$4.439
($71.25 total for this fill)
55.86 mpg (US)
67.05 mpg (Imp)
4.21 L/100 km
1.79 gal (US)/100 mi
603.34 Wh/mi
This tank has several ~100 mile round trips on it, which were 60mpg. Still, my wife driving brought the avg FE down a little bit.

SG Values: 60.8mpg, 14.8gal, 907mi, 21.4hrs, 42mph avg
2012-03-08 688.3 mi
1107.71 km
12.457 gal (US)
10.37 gal (Imp)
47.15 L
419.8 kWh
$2.657
($33.1 total for this fill)
55.25 mpg (US)
66.37 mpg (Imp)
4.26 L/100 km
1.81 gal (US)/100 mi
609.91 Wh/mi
Received 5 gal free from Propel when I filled this tank... ! (Yay!)

Primarily used for commuting; was able to drive it most of the tank this time (maybe 55% vs 45% for my wife). Warmer weather definitely seemed to help!
2012-02-24 802.6 mi
1291.66 km
15.343 gal (US)
12.78 gal (Imp)
58.08 L
517.06 kWh
$4.299
($65.96 total for this fill)
52.31 mpg (US)
62.8 mpg (Imp)
4.5 L/100 km
1.91 gal (US)/100 mi
644.23 Wh/mi
Primarily used for commuting... Probably about 55/45 between my wife & I
2012-02-05 789 mi
1269.77 km
15.705 gal (US)
13.08 gal (Imp)
59.45 L
529.26 kWh
$4.159
($65.32 total for this fill)
50.24 mpg (US)
60.32 mpg (Imp)
4.68 L/100 km
1.99 gal (US)/100 mi
670.8 Wh/mi
Primarily used for commuting... I tried to drive at least 50% of the time, but probably ended up driving about 45% vs my wife.

Along the same route, I can usually get ~10 - 15 MPG better than my wife (40 - 45mpg for her vs 55 - 60 mpg for me).
2012-01-18 827.9 mi
1332.38 km
15.227 gal (US)
12.68 gal (Imp)
57.64 L
513.15 kWh
$4.159
($63.33 total for this fill)
54.37 mpg (US)
65.29 mpg (Imp)
4.33 L/100 km
1.84 gal (US)/100 mi
619.82 Wh/mi
Nearly all of this tank was commuting, for school and shopping. But in this case, I did nearly 50% of the driving (vs my wife doing all the driving) so I was able to bump the FE quite a bit!
2011-12-29 902.1 mi
1451.79 km
14.632 gal (US)
12.18 gal (Imp)
55.39 L
493.1 kWh
$4.039
($59.1 total for this fill)
61.65 mpg (US)
74.06 mpg (Imp)
3.82 L/100 km
1.62 gal (US)/100 mi
546.61 Wh/mi
Primarily the return trip from Spokane. Was able to do the full trip on a single tank of fuel. No special hypermiling being done throughout the trip. Mainly stayed at or below the posted speed limit. Grill was blocked at the top, and also blocked most of the driver's side grill (not used for cooling at all) and half of the passenger's side grill (partly used for intercooler). Decent weather nearly the entire trip; just had some rain at the beginning.
2011-12-26 401.4 mi
645.99 km
7.493 gal (US)
6.24 gal (Imp)
28.36 L
252.51 kWh
$3.919
($29.37 total for this fill)
53.57 mpg (US)
64.33 mpg (Imp)
4.39 L/100 km
1.87 gal (US)/100 mi
629.07 Wh/mi
Finished trip to Spokane. Added another ~80 miles of city driving, which certainly dropped the FE after the good drive.
2011-12-20 551.9 mi
888.2 km
9.3 gal (US)
7.74 gal (Imp)
35.2 L
313.41 kWh
$3.999
($37.19 total for this fill)
59.34 mpg (US)
71.3 mpg (Imp)
3.96 L/100 km
1.69 gal (US)/100 mi
567.87 Wh/mi
First long freeway trip after 5th gear swap. Prepped for this trip with an oil change, grill block, and tires inflated to 50psi. Full trip was driven at or just below posted speed limit, with no special hypermiling techniques. Filled up at about halfway up because I thought there would be a biodiesel station in Redmond OR, but there wasn't.
2011-12-16 1375 mi
2212.85 km
28.83 gal (US)
24.01 gal (Imp)
109.13 L
971.57 kWh
$4.149
($119.62 total for this fill)
47.69 mpg (US)
57.27 mpg (Imp)
4.93 L/100 km
2.1 gal (US)/100 mi
706.6 Wh/mi
Combined last two fillups due to a short fill on the previous tank. Primarily used for commute back & forth to school. I was able to drive Helga a bit more during Thanksgiving break (no school).
2011-11-10 785 mi
1263.34 km
15.205 gal (US)
12.66 gal (Imp)
57.56 L
512.41 kWh
$4.259
($64.76 total for this fill)
51.63 mpg (US)
62.01 mpg (Imp)
4.56 L/100 km
1.94 gal (US)/100 mi
652.75 Wh/mi
First tank after having the 5th gear swapped to a 0.681 ratio. Also first tank after having clutch replaced (it was slipping) and having a major vacuum leak repaired. Probably all of those contributed to much better FE!
2011-10-28 723.9 mi
1165 km
15.364 gal (US)
12.79 gal (Imp)
58.16 L
517.77 kWh
$4.159
($63.9 total for this fill)
47.12 mpg (US)
56.6 mpg (Imp)
4.99 L/100 km
2.12 gal (US)/100 mi
715.25 Wh/mi
Catching up on fuel log entries

Fillup before heading out to the SF Bay area to have some work done to Helga; in particular, clutch replacement and 5th gear swap to a 0.681 ratio.
2011-10-06 650.8 mi
1047.36 km
14.867 gal (US)
12.38 gal (Imp)
56.28 L
501.02 kWh
$4.059
($60.35 total for this fill)
43.77 mpg (US)
52.57 mpg (Imp)
5.37 L/100 km
2.28 gal (US)/100 mi
769.85 Wh/mi
Catching up on fuel log entries...

Included a trip to SF area from Sacramento area
2011-09-25 594.4 mi
956.59 km
12.917 gal (US)
10.76 gal (Imp)
48.9 L
435.3 kWh
$4.159
($53.72 total for this fill)
46.02 mpg (US)
55.24 mpg (Imp)
5.11 L/100 km
2.17 gal (US)/100 mi
732.34 Wh/mi
Catching up on fuel log entries.

This fillup was before going to the Bay Area TDI GTG
2011-09-10 699.7 mi
1126.06 km
13.392 gal (US)
11.15 gal (Imp)
50.69 L
451.31 kWh
$4.139
($55.43 total for this fill)
52.25 mpg (US)
62.75 mpg (Imp)
4.5 L/100 km
1.91 gal (US)/100 mi
645.01 Wh/mi
Catching up on fuel log entries
2011-08-28 657 mi
1057.34 km
15.038 gal (US)
12.52 gal (Imp)
56.93 L
506.78 kWh
$4.099
($61.64 total for this fill)
43.69 mpg (US)
52.48 mpg (Imp)
5.38 L/100 km
2.29 gal (US)/100 mi
771.35 Wh/mi
Catching up on fuel log entries
2011-08-15 725 mi
1166.77 km
15.669 gal (US)
13.05 gal (Imp)
59.31 L
528.05 kWh
$4.099
($64.23 total for this fill)
46.27 mpg (US)
55.56 mpg (Imp)
5.08 L/100 km
2.16 gal (US)/100 mi
728.34 Wh/mi
Catching up on fuel log entries
2011-07-28 1427 mi
2296.53 km
31.724 gal (US)
26.42 gal (Imp)
120.09 L
1069.1 kWh
$4.229
($134.16 total for this fill)
44.98 mpg (US)
54.01 mpg (Imp)
5.23 L/100 km
2.22 gal (US)/100 mi
749.19 Wh/mi
Forgot to write down the odo reading, so had to combine two fillups into one entry...
2011-05-20 692 mi
1113.67 km
13.09 gal (US)
10.9 gal (Imp)
49.55 L
441.13 kWh
$4.559
($59.68 total for this fill)
52.86 mpg (US)
63.49 mpg (Imp)
4.45 L/100 km
1.89 gal (US)/100 mi
637.47 Wh/mi
Catching up on fuel log entries
2011-05-09 537 mi
864.22 km
10.865 gal (US)
9.05 gal (Imp)
41.13 L
366.15 kWh
$4.399
($47.8 total for this fill)
49.42 mpg (US)
59.34 mpg (Imp)
4.76 L/100 km
2.02 gal (US)/100 mi
681.84 Wh/mi
Catching up on log entries
2011-04-28 677 mi
1089.53 km
14 gal (US)
11.66 gal (Imp)
53 L
471.8 kWh
$4.339
($60.75 total for this fill)
48.36 mpg (US)
58.06 mpg (Imp)
4.86 L/100 km
2.07 gal (US)/100 mi
696.9 Wh/mi
We moved... wife started to drive the car. She's not quite as good at hypermiling as I am 8^)
2011-04-14 838 mi
1348.63 km
13.308 gal (US)
11.08 gal (Imp)
50.38 L
448.48 kWh
$4.339
($57.74 total for this fill)
62.97 mpg (US)
75.63 mpg (Imp)
3.74 L/100 km
1.59 gal (US)/100 mi
535.18 Wh/mi
Catching up on the fillups
2011-03-19 928.1 mi
1493.63 km
16.6 gal (US)
13.82 gal (Imp)
62.84 L
559.42 kWh
$4.317
($71.66 total for this fill)
55.91 mpg (US)
67.16 mpg (Imp)
4.21 L/100 km
1.79 gal (US)/100 mi
602.76 Wh/mi
Filled up partial then full tank in one day... hence the odd price per gallon.

This tank included 2 long trips to San Francisco and back and one to Davis and back... overall tank FE is likely lower due to those trips.

Near the beginning of the tank, replaced injector nozzles and received a tune; additionally replaced the thermostat. Water temp is noticeably higher (more in the 'normal' range rather than under temp) as a result. Scangauge is a bit off due to the new nozzles, but even so there was a definite freeway FE improvement.

Since the new tune is quite fun, probably lost a few FE points "testing out" the newfound performance...
2011-03-11 674.4 mi
1085.34 km
11.67 gal (US)
9.72 gal (Imp)
44.18 L
393.28 kWh
$4.259
($49.7 total for this fill)
57.79 mpg (US)
69.38 mpg (Imp)
4.07 L/100 km
1.73 gal (US)/100 mi
583.16 Wh/mi
Primarily commuting for this tank; filled up early due to a long trip the next morning.

Removed the mud flaps and folded in the passenger mirror; both those actions seemed to help bring my daily commute FE to over 60MPG. The grill block is probably helping too, though it's not sufficient to keep the water temp in the proper range... will be replacing the thermostat this coming weekend in hopes of correcting that issue as well.
2011-02-23 785.7 mi
1264.46 km
15.08 gal (US)
12.56 gal (Imp)
57.08 L
508.2 kWh
$3.899
($58.8 total for this fill)
52.1 mpg (US)
62.56 mpg (Imp)
4.51 L/100 km
1.92 gal (US)/100 mi
646.81 Wh/mi
Was hoping that I would not need to fill up in February! Ah well...

Had a few longer freeway trips on this tank. Freeway driving really brings the tank FE down. First tank under 800 miles! I could have easily made it to 800, but I haven't gotten the Scangauge dialed in yet (though the Scangauge gallons used was much closer than I expected this tank).

For the commuting miles, continued to take the surface route to work and back, which helped raise the overall FE significantly. Frustrated that the freeway FE drops so much compared to surface FE.

Also, temperatures were quite a bit lower for a portion of February, which I'm sure did not help FE very much.

Last weekend, added upper and lower grill block, and while it might have helped keep the temps up a little bit, it's still not enough... really need to get a lower engine cover in place, and will consider getting an upper one as well (which covers the entire engine compartment).
2011-01-28 837.9 mi
1348.47 km
15.03 gal (US)
12.51 gal (Imp)
56.89 L
506.51 kWh
$3.659
($54.99 total for this fill)
55.75 mpg (US)
66.98 mpg (Imp)
4.22 L/100 km
1.79 gal (US)/100 mi
604.5 Wh/mi
Nearly 100% commuting.

Impressed with what I could do with no mods except tires! Working on some grill blocks now; noticing that the coolant temp rarely gets above 175 deg F (and often drops into the 160 deg range), which is probably not helping.
2011-01-06 850.8 mi
1369.23 km
16.51 gal (US)
13.75 gal (Imp)
62.5 L
556.39 kWh
$3.559
($58.76 total for this fill)
51.53 mpg (US)
61.88 mpg (Imp)
4.56 L/100 km
1.94 gal (US)/100 mi
653.96 Wh/mi
Second tank on the Jetta.

Mostly commuting. Taking surface roads for the commuting, which gives me a round trip fe average of 55 to 60mpg.

Had a few longer trips which required freeway. Freeway fe is closer to 30mpg.

Using ScanGauge II, which is helping to tune my driving style with the TDI. Pulse & Glide (with engine on) works very well. I don't do Engine Off primarily because of the power steering... if I am trying to turn (even slightly) with engine off and then start the engine, the kick of the power steering unit really causes the steering to 'over turn' which is a little scary.

No fe mods other than the LRR tires set to 50psi.
2010-12-10 826.9 mi
1330.77 km
16.32 gal (US)
13.59 gal (Imp)
61.78 L
549.98 kWh
$3.499
($57.1 total for this fill)
50.67 mpg (US)
60.85 mpg (Imp)
4.64 L/100 km
1.97 gal (US)/100 mi
665.11 Wh/mi
First full tank fillup on Helga. Filling up with B5 and then adding a few ounces of diesel additive for lubricity and to keep water from separating.

This tank included two days of fairly long trips via freeway, which dropped avg fe down to high 30's; typical commute is ~60mpg round trip.

Only mod currently is LRR tires inflated to ~50psi.

View: spreadsheet friendly fuel log output (for copy/paste)


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