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Fuel log graph
Efficiency log for: Bettie - 1969 Volkswagen Beetle
  • Lifetime Fuel Economy: 20.1 mpg (US), 11.7 L/100 km, 24.2 mpg (Imp)
  • 90-day Fuel Economy: 21.5 mpg (US), 10.9 L/100 km, 25.8 mpg (Imp)
  • 3-tank Fuel Economy: 20.3 mpg (US), 11.6 L/100 km, 24.4 mpg (Imp)
  • EPA Combined Rating / % over rating: 25 mpg (US) / -13.9% (based on 90-day fuel economy)
  • Total fills: 30
  • Average cost per gal/L: $3.44 per gal (US); $0.00 per L (price data entered for 26 fill/s)
  • Average cost per fill: $18.57
  • Average distance cost: $0.17 per mi. / $0.11 per km
  • Total fuel used: 155.99 gal (US), 590.5 L
  • Total distance traveled: 3138 mi. / 5050.1 km
  • Total cost: $482.74
  • Total fuel saved vs. EPA: -30.5 gal. (US) / -115.5 L
  • Total saved: $-104.92 (based on avg. cost per gal./L)
  • Average tank distance: 104.6 mi. / 168.3 km
Fill date Distance Fill amount Price Fuel Economy Details
2013-11-09 166 mi
267.15 km
7.49 gal (US)
6.24 gal (Imp)
28.35 L
252.41 kWh
$3.15
($23.59 total for this fill)
22.16 mpg (US)
26.6 mpg (Imp)
10.61 L/100 km
4.51 gal (US)/100 mi
1520.54 Wh/mi
2013-11-03 93 mi
149.67 km
5.01 gal (US)
4.17 gal (Imp)
18.96 L
168.84 kWh
$3.22
($16.13 total for this fill)
18.56 mpg (US)
22.3 mpg (Imp)
12.67 L/100 km
5.39 gal (US)/100 mi
1815.48 Wh/mi
2013-10-26 103 mi
165.76 km
5.32 gal (US)
4.43 gal (Imp)
20.14 L
179.28 kWh
$3.28
($17.45 total for this fill)
19.36 mpg (US)
23.25 mpg (Imp)
12.15 L/100 km
5.17 gal (US)/100 mi
1740.58 Wh/mi
2013-10-19 112 mi
180.25 km
4.5 gal (US)
3.75 gal (Imp)
17.03 L
151.65 kWh
$3.21
($14.45 total for this fill)
24.89 mpg (US)
29.87 mpg (Imp)
9.45 L/100 km
4.02 gal (US)/100 mi
1354.02 Wh/mi
not sure how I managed better mileage here. I need to figure that out.
2013-10-11 141 mi
226.92 km
6.75 gal (US)
5.62 gal (Imp)
25.55 L
227.48 kWh
$3.22
($21.74 total for this fill)
20.89 mpg (US)
25.09 mpg (Imp)
11.26 L/100 km
4.79 gal (US)/100 mi
1613.33 Wh/mi
2013-10-01 121 mi
194.73 km
5.86 gal (US)
4.88 gal (Imp)
22.18 L
197.48 kWh
$3.26
($19.1 total for this fill)
20.65 mpg (US)
24.8 mpg (Imp)
11.39 L/100 km
4.84 gal (US)/100 mi
1632.07 Wh/mi
back to normal driving. A little highway, mostly not.
2013-09-23 98 mi
157.72 km
4.52 gal (US)
3.76 gal (Imp)
17.11 L
152.32 kWh
$3.29
($14.87 total for this fill)
21.68 mpg (US)
26.06 mpg (Imp)
10.85 L/100 km
4.61 gal (US)/100 mi
1554.29 Wh/mi
This was at the end of my last test run, after driving for a couple days. Everything is working properly with all the adjustments made. Now, I can get on with other things.
2013-09-22 85 mi
136.79 km
3.82 gal (US)
3.18 gal (Imp)
14.46 L
128.73 kWh
$3.34
($12.76 total for this fill)
22.25 mpg (US)
26.73 mpg (Imp)
10.57 L/100 km
4.49 gal (US)/100 mi
1514.47 Wh/mi
After a full speed test run, 80MPH+, to test the cooling system.
2013-09-22 23 mi
37.01 km
1.04 gal (US)
0.87 gal (Imp)
3.94 L
35.05 kWh
$3.34
($3.47 total for this fill)
22.12 mpg (US)
26.44 mpg (Imp)
10.65 L/100 km
4.52 gal (US)/100 mi
1523.91 Wh/mi
Topping off before a run, after changing to 5w20 (castrol edge Ti)
2013-09-18 110 mi
177.03 km
4.71 gal (US)
3.92 gal (Imp)
17.83 L
158.73 kWh
$3.37
($15.87 total for this fill)
23.35 mpg (US)
28.06 mpg (Imp)
10.07 L/100 km
4.28 gal (US)/100 mi
1443 Wh/mi
Almost all highway. Most of it was spent at or near WOT, running 80+ MPH. I was doing thermal testing to see if she could sustain high speeds with the new oil. I was not disappointed. I will have to do some further tests and a few tweaks, but I'm almost satisfied.
2013-09-18 112 mi
180.25 km
5.03 gal (US)
4.19 gal (Imp)
19.04 L
169.51 kWh
$3.37
($16.95 total for this fill)
22.27 mpg (US)
26.73 mpg (Imp)
10.56 L/100 km
4.49 gal (US)/100 mi
1513.48 Wh/mi
Just changed the oil to Pennzoil Ultra 5w30, from Brad Penn SAE 30

Filling up before the test run.
2013-09-09 128 mi
206 km
5.69 gal (US)
4.74 gal (Imp)
21.54 L
191.75 kWh
$3.47
($19.74 total for this fill)
22.5 mpg (US)
27 mpg (Imp)
10.46 L/100 km
4.45 gal (US)/100 mi
1498.05 Wh/mi
Almost all highway. Doing some stress testing of the engine. Not entirely happy, but not upset either. It starts to overheat if I maintain more than ~68mph. I'll probably be adding a secondary oil cooler soon.
2013-09-09 108 mi
173.81 km
4.89 gal (US)
4.07 gal (Imp)
18.51 L
164.79 kWh
$3.47
($16.97 total for this fill)
22.09 mpg (US)
26.54 mpg (Imp)
10.65 L/100 km
4.53 gal (US)/100 mi
1525.83 Wh/mi
Standard fair. A little highway, mostly not.
2013-09-03 115 mi
185.07 km
5.15 gal (US)
4.29 gal (Imp)
19.49 L
173.56 kWh
$3.56
($18.33 total for this fill)
22.33 mpg (US)
26.81 mpg (Imp)
10.53 L/100 km
4.48 gal (US)/100 mi
1509.22 Wh/mi
almost exclusively highway miles, averaging 72mph. *shrugs* might try dropping highway speed down to 65, but it's dangerous.
2013-08-31 114 mi
183.47 km
5.57 gal (US)
4.64 gal (Imp)
21.08 L
187.71 kWh
$3.59
($20 total for this fill)
20.47 mpg (US)
24.57 mpg (Imp)
11.49 L/100 km
4.89 gal (US)/100 mi
1646.58 Wh/mi
standard usage. It seems to be level at 20mpg. :/ not happy, but I am driving her a lot harder than she was designed, since I am constantly dodging soccer moms
2013-08-20 97 mi
156.11 km
4.87 gal (US)
4.05 gal (Imp)
18.43 L
164.12 kWh
$3.43
($16.7 total for this fill)
19.92 mpg (US)
23.95 mpg (Imp)
11.81 L/100 km
5.02 gal (US)/100 mi
1691.96 Wh/mi
At the very end of this tank, I reduced my fuel pressure to where it's supposed to be. It may be my imagination, but she feels livelier, so we'll see how the mileage does now.
2013-08-10 71 mi
114.26 km
3.72 gal (US)
3.1 gal (Imp)
14.08 L
125.36 kWh
19.09 mpg (US)
22.9 mpg (Imp)
12.32 L/100 km
5.24 gal (US)/100 mi
1765.63 Wh/mi
She sat for almost two weeks, so... dunno if this is evaporation.
2013-07-21 99 mi
159.33 km
4.8 gal (US)
4 gal (Imp)
18.17 L
161.76 kWh
$3.53
($16.94 total for this fill)
20.63 mpg (US)
24.75 mpg (Imp)
11.4 L/100 km
4.85 gal (US)/100 mi
1633.94 Wh/mi
finally got a jaunt on the highway. Now that I'm confident in the engine, I'll be doing this more often.
2013-07-15 96 mi
154.5 km
4.9 gal (US)
4.08 gal (Imp)
18.55 L
165.13 kWh
$3.43
($16.81 total for this fill)
19.59 mpg (US)
23.53 mpg (Imp)
12.01 L/100 km
5.1 gal (US)/100 mi
1720.1 Wh/mi
2013-07-04 75 mi
120.7 km
3.99 gal (US)
3.32 gal (Imp)
15.1 L
134.46 kWh
18.8 mpg (US)
22.59 mpg (Imp)
12.51 L/100 km
5.32 gal (US)/100 mi
1792.8 Wh/mi
heading in the right direction, still. This is good.
2013-06-22 76 mi
122.31 km
4.603 gal (US)
3.83 gal (Imp)
17.42 L
155.12 kWh
$3.45
($15.88 total for this fill)
16.51 mpg (US)
19.84 mpg (Imp)
14.24 L/100 km
6.06 gal (US)/100 mi
2041.05 Wh/mi
gas cap was fixed this time. I'm still getting used to how I have to drive it, as well as doing some tuning.
2013-06-15 112 mi
180.25 km
10 gal (US)
8.33 gal (Imp)
37.85 L
337 kWh
$3.48
($34.8 total for this fill)
11.2 mpg (US)
13.45 mpg (Imp)
21 L/100 km
8.93 gal (US)/100 mi
3008.93 Wh/mi
Finally got the engine finished, but didn't have the gas cap on tight. I was basically sloshing fuel out of the filler, on every left hand turn. OOPS.
2012-06-30 19 mi
30.58 km
0.95 gal (US)
0.79 gal (Imp)
3.6 L
32.02 kWh
20 mpg (US)
24.05 mpg (Imp)
11.77 L/100 km
5 gal (US)/100 mi
1685.26 Wh/mi
I had just gotten the intake manifold sorted, and wanted to start fresh. Shortly after this (that day), I spun a bearing. I've been trying to find usable parts to build a new engine, since.
2012-05-24 130 mi
209.21 km
6.92 gal (US)
5.76 gal (Imp)
26.2 L
233.2 kWh
18.79 mpg (US)
22.57 mpg (Imp)
12.52 L/100 km
5.32 gal (US)/100 mi
1793.85 Wh/mi
2012-05-10 152 mi
244.62 km
6.67 gal (US)
5.55 gal (Imp)
25.25 L
224.78 kWh
$3.56
($23.75 total for this fill)
22.79 mpg (US)
27.39 mpg (Imp)
10.32 L/100 km
4.39 gal (US)/100 mi
1478.82 Wh/mi
2012-04-21 165 mi
265.54 km
7.28 gal (US)
6.06 gal (Imp)
27.56 L
245.34 kWh
$3.69
($26.86 total for this fill)
22.66 mpg (US)
27.23 mpg (Imp)
10.38 L/100 km
4.41 gal (US)/100 mi
1486.91 Wh/mi
mostly highway, still overheating
2012-04-15 41 mi
65.98 km
3.22 gal (US)
2.68 gal (Imp)
12.19 L
108.51 kWh
$3.76
($12.11 total for this fill)
12.73 mpg (US)
15.3 mpg (Imp)
18.48 L/100 km
7.85 gal (US)/100 mi
2646.59 Wh/mi
some fuel was spilled, some was burned, some was drained... so... yeah.
2012-04-07 167 mi
268.76 km
7.24 gal (US)
6.03 gal (Imp)
27.41 L
243.99 kWh
$3.86
($27.95 total for this fill)
23.07 mpg (US)
27.69 mpg (Imp)
10.2 L/100 km
4.34 gal (US)/100 mi
1461.02 Wh/mi
2012-02-17 121 mi
194.73 km
5.99 gal (US)
4.99 gal (Imp)
22.67 L
201.86 kWh
$3.48
($20.85 total for this fill)
20.2 mpg (US)
24.25 mpg (Imp)
11.64 L/100 km
4.95 gal (US)/100 mi
1668.26 Wh/mi
getting better. Now I blame my incessant use of the skinny pedal
2012-01-25 88 mi
141.62 km
5.49 gal (US)
4.57 gal (Imp)
20.78 L
185.01 kWh
$3.4
($18.67 total for this fill)
16.03 mpg (US)
19.26 mpg (Imp)
14.67 L/100 km
6.24 gal (US)/100 mi
2102.39 Wh/mi
Just bought the car. It had a siezed wheel cylinder, which caused the brakes to constantly drag. This probably cost me a great deal of economy.

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


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