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Fuel log graph
Efficiency log for: Daily Driver - 2002 Pontiac Grand Prix SE
  • Lifetime Fuel Economy: 26.8 mpg (US), 8.8 L/100 km, 32.1 mpg (Imp)
  • 90-day Fuel Economy: 18.5 mpg (US), 12.7 L/100 km, 22.2 mpg (Imp)
  • 3-tank Fuel Economy: 22.5 mpg (US), 10.5 L/100 km, 27 mpg (Imp)
  • EPA Combined Rating / % over rating: 21 mpg (US) / -12.1% (based on 90-day fuel economy)
  • Total fills: 16
  • Average cost per gal/L: $3.28 per gal (US); $0.00 per L (price data entered for 16 fill/s)
  • Average cost per fill: $46.22
  • Average distance cost: $0.12 per mi. / $0.08 per km
  • Total fuel used: 225.38 gal (US), 853.1 L
  • Total distance traveled: 6080.1 mi. / 9785 km
  • Total cost: $739.58
  • Total fuel saved vs. EPA: 64.2 gal. (US) / 243 L
  • Total saved: $210.58 (based on avg. cost per gal./L)
  • Average tank distance: 380 mi. / 611.6 km
Fill date Distance Fill amount Price Fuel Economy Details
2009-02-14 282.8 mi
455.12 km
15.95 gal (US)
13.28 gal (Imp)
60.38 L
537.52 kWh
$1.739
($27.74 total for this fill)
17.73 mpg (US)
21.3 mpg (Imp)
13.27 L/100 km
5.64 gal (US)/100 mi
1900.71 Wh/mi
All in town stuff, never once (I mean never) above 50mph, mostly 20-40mph. Terrible, cold, short trips, needs oils changed, plugs and wires, radiator fluid flushed and replaced, new thermostat, the list goes.

Poor car. It needs help.
2008-12-03 306.8 mi
493.75 km
16 gal (US)
13.32 gal (Imp)
60.57 L
539.2 kWh
$1.699
($27.18 total for this fill)
19.18 mpg (US)
23.03 mpg (Imp)
12.27 L/100 km
5.22 gal (US)/100 mi
1757.5 Wh/mi
All city, not even a hint of highway speeds. Drove up a mountain road, kept it in 2nd because of snow and ice, so at times it was rolling 3000rpms for extended periods. Plus the last 1/4 tank was total hoon action. It snowed 5-6 inches, I couldn't resist taking it for a few spins!
2008-11-11 478.5 mi
770.07 km
15.61 gal (US)
13 gal (Imp)
59.09 L
526.06 kWh
$2.159
($33.7 total for this fill)
30.65 mpg (US)
36.81 mpg (Imp)
7.67 L/100 km
3.26 gal (US)/100 mi
1099.39 Wh/mi
Trip to Missoula and back to get a bike. Sad that driving was cheaper than shipping. Ah well. decent enough mileage.
2008-11-06 332.5 mi
535.11 km
16.38 gal (US)
13.64 gal (Imp)
62.01 L
552.01 kWh
$2.259
($37 total for this fill)
20.3 mpg (US)
24.38 mpg (Imp)
11.59 L/100 km
4.93 gal (US)/100 mi
1660.18 Wh/mi
Cheap gas, I can make 1 tank last 3 weeks, even when driving 4 out of 5 days to work.
2008-10-14 312 mi
502.12 km
15.13 gal (US)
12.6 gal (Imp)
57.27 L
509.88 kWh
$3.089
($46.74 total for this fill)
20.62 mpg (US)
24.76 mpg (Imp)
11.41 L/100 km
4.85 gal (US)/100 mi
1634.23 Wh/mi
Had a lapse in data logging, but I've started again.
2008-07-06 383.9 mi
617.83 km
13.06 gal (US)
10.88 gal (Imp)
49.44 L
440.12 kWh
$4.059
($53.01 total for this fill)
29.4 mpg (US)
35.28 mpg (Imp)
8 L/100 km
3.4 gal (US)/100 mi
1146.44 Wh/mi
From CDA to Bozeman. I didn't drive, if you couldn't tell. I was too tired, and decided to let the FE suffer, as well as my tranny! good god he made it shift a lot.
2008-07-06 305.8 mi
492.14 km
9.876 gal (US)
8.22 gal (Imp)
37.38 L
332.82 kWh
$3.899
($38.51 total for this fill)
30.96 mpg (US)
37.2 mpg (Imp)
7.6 L/100 km
3.23 gal (US)/100 mi
1088.36 Wh/mi
Seattle to CDA. Going home. I didn't try too hard for mileage, it was super early, and I only had 3 hours of sleep. We also had a time frame to meet, so I pushed it harder uphill than I wanted to.
2008-07-06 441.6 mi
710.69 km
14.62 gal (US)
12.17 gal (Imp)
55.34 L
492.69 kWh
$4.379
($64.02 total for this fill)
30.21 mpg (US)
36.29 mpg (Imp)
7.79 L/100 km
3.31 gal (US)/100 mi
1115.69 Wh/mi
CDA to Seattle area, via Highway 2. Scenic, but probably knocked the FE a little. Also lots of fast city driving, certainly killed the average.
2008-07-04 428.4 mi
689.44 km
12.57 gal (US)
10.47 gal (Imp)
47.58 L
423.61 kWh
$3.899
($49.01 total for this fill)
34.08 mpg (US)
40.92 mpg (Imp)
6.9 L/100 km
2.93 gal (US)/100 mi
988.82 Wh/mi
Bozeman to Coeur De' Alene. Me driving, 5 passengers with luggage for 4 days. Estimated car weight at 4200-4300lbs. The real distance is 365 miles (some random in-town at the end), took us 5.5 hours. I amazed myself with the mileage and time. Still 100% stock car.
2008-07-02 378.3 mi
608.81 km
14.54 gal (US)
12.11 gal (Imp)
55.04 L
490 kWh
$4.059
($59.02 total for this fill)
26.02 mpg (US)
31.24 mpg (Imp)
9.04 L/100 km
3.84 gal (US)/100 mi
1295.27 Wh/mi
All in-town again, maybe 50 miles on 60-65mph highways. Not bad.
2008-06-13 332.8 mi
535.59 km
15.16 gal (US)
12.62 gal (Imp)
57.39 L
510.89 kWh
$3.959
($60.02 total for this fill)
21.95 mpg (US)
26.37 mpg (Imp)
10.72 L/100 km
4.56 gal (US)/100 mi
1535.13 Wh/mi
All in-town driving. Easy on the throttle, off at red lights, neutral coasting as often as possible.
2008-05-25 461 mi
741.91 km
15.8 gal (US)
13.16 gal (Imp)
59.81 L
532.46 kWh
$3.749
($59.23 total for this fill)
29.18 mpg (US)
35.03 mpg (Imp)
8.06 L/100 km
3.43 gal (US)/100 mi
1155.01 Wh/mi
Cour De' Alene to Bozeman. The last 90 miles are in-town driving, averaging 22mpg for those miles, one can deduce our actual highway mileage. (31.68mpg highway)
2008-05-19 549 mi
883.53 km
17.27 gal (US)
14.38 gal (Imp)
65.37 L
582 kWh
$3.509
($60.6 total for this fill)
31.79 mpg (US)
38.18 mpg (Imp)
7.4 L/100 km
3.15 gal (US)/100 mi
1060.11 Wh/mi
Technically more than the tank would allow. Stopped early and filled 1.309 gal @ $3.819 in several miles back just in case we didn't make it to my fav Coeur De' Alene station. Coming from Forest Grove.
2008-05-16 301 mi
484.41 km
10.29 gal (US)
8.57 gal (Imp)
38.95 L
346.77 kWh
$3.939
($40.53 total for this fill)
29.25 mpg (US)
35.12 mpg (Imp)
8.04 L/100 km
3.42 gal (US)/100 mi
1152.06 Wh/mi
Forest Grove to Seattle and back. Mom drove, not so great FE.
2008-05-16 414.9 mi
667.72 km
11.89 gal (US)
9.9 gal (Imp)
45.01 L
400.69 kWh
$3.699
($43.98 total for this fill)
34.89 mpg (US)
41.91 mpg (Imp)
6.74 L/100 km
2.87 gal (US)/100 mi
965.75 Wh/mi
Coeur De' Alene, ID to Forest Grove, OR
2008-05-15 370.8 mi
596.74 km
11.23 gal (US)
9.35 gal (Imp)
42.51 L
378.45 kWh
$3.499
($39.29 total for this fill)
33.02 mpg (US)
39.66 mpg (Imp)
7.12 L/100 km
3.03 gal (US)/100 mi
1020.63 Wh/mi
Bozeman to Couer De' Alene

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


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