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Fuel log graph
Efficiency log for: Car - 1992 Subaru Legacy L (sedan)
  • Lifetime Fuel Economy: 27.4 mpg (US), 8.6 L/100 km, 32.9 mpg (Imp)
  • 90-day Fuel Economy: no fills in past 90 days
  • 3-tank Fuel Economy: 36.9 mpg (US), 6.4 L/100 km, 44.3 mpg (Imp)
  • EPA Combined Rating / % over rating: 25 mpg (US) / 0% (based on 90-day fuel economy)
  • Total fills: 22
  • Total fuel used: 3516.23 gal (US), 13310.4 L
  • Total distance traveled: 96234.4 mi. / 154874.4 km
  • Average tank distance: 4374.3 mi. / 7039.7 km
Fill date Distance Fill amount Price Fuel Economy Details
2009-07-15 514 mi
827.2 km
13.28 gal (US)
11.06 gal (Imp)
50.27 L
447.54 kWh
38.7 mpg (US)
46.47 mpg (Imp)
6.08 L/100 km
2.58 gal (US)/100 mi
870.7 Wh/mi
89 - Made it from Illinois/Indiana border, into central PA on one tank, personal best. (in my experience the tank usefully holds 14 gallons, max) This included quite a bit of drafting a truck that was travelling so perfectly for me drafting it that I took a picture.
2009-07-14 452.2 mi
727.75 km
12.89 gal (US)
10.73 gal (Imp)
48.79 L
434.39 kWh
35.08 mpg (US)
42.14 mpg (Imp)
6.7 L/100 km
2.85 gal (US)/100 mi
960.61 Wh/mi
89 - Made it from downtown Minneapolis, to the state of Indiana, on one tank. This was a personal one-tank record distance for me, until the next one.
2009-07-14 258.1 mi
415.37 km
6.99 gal (US)
5.82 gal (Imp)
26.46 L
235.56 kWh
36.92 mpg (US)
44.35 mpg (Imp)
6.37 L/100 km
2.71 gal (US)/100 mi
912.67 Wh/mi
89 - Got lost in downtown Minneapolis, when I was on I-94 trying to go through and it said "Closed ahead, use alternative route"... but never suggested one.

Filled up before going into Wisconsin, which I knew had more expensive gas than Minnesota, hoping to make it to Indiana without filling up since Illinois is also expensive. I made it.
2009-07-13 365 mi
587.41 km
10.83 gal (US)
9.02 gal (Imp)
41 L
364.97 kWh
33.7 mpg (US)
40.47 mpg (Imp)
6.98 L/100 km
2.97 gal (US)/100 mi
999.92 Wh/mi
89 - Crosswind/Headwind all day driving across South Dakota, but I still got better fuel economy this tank than -any- tank before the mods.
2009-07-13 151.9 mi
244.46 km
4.08 gal (US)
3.4 gal (Imp)
15.44 L
137.5 kWh
37.23 mpg (US)
44.68 mpg (Imp)
6.32 L/100 km
2.69 gal (US)/100 mi
905.2 Wh/mi
88 - Hindered by driving around the Black Hills of South Dakota, and aided by the elevation change down from the rocky mountains.
2009-07-13 263 mi
423.26 km
7.35 gal (US)
6.12 gal (Imp)
27.82 L
247.7 kWh
35.78 mpg (US)
42.97 mpg (Imp)
6.57 L/100 km
2.79 gal (US)/100 mi
941.83 Wh/mi
87 - Some of the worst downpours I've ever experienced. I actually pulled off into a rest stop because the storms were so bad, and I never do that. Didn't hurt the mileage too much though, apparently.
2009-07-12 378.4 mi
608.98 km
10.75 gal (US)
8.95 gal (Imp)
40.69 L
362.28 kWh
35.2 mpg (US)
42.28 mpg (Imp)
6.68 L/100 km
2.84 gal (US)/100 mi
957.4 Wh/mi
88 - I skipped a fuel entry as I had a gas leak fixed, and lost a good deal of gas to that. This is the first entry with the new fuel tank, and the first long-distance test of rear wheel skirts, mirror delete, grille block and airdam/front tray.

This one is from across Montana, from Missoula to Billings, plus about 30 miles.
2009-06-25 253.8 mi
408.45 km
8.88 gal (US)
7.39 gal (Imp)
33.61 L
299.26 kWh
28.58 mpg (US)
34.34 mpg (Imp)
8.23 L/100 km
3.5 gal (US)/100 mi
1179.12 Wh/mi
89 - around Montana, at this point I had a leak in my gas tank
2009-06-13 300.1 mi
482.96 km
10.45 gal (US)
8.7 gal (Imp)
39.56 L
352.17 kWh
28.72 mpg (US)
34.49 mpg (Imp)
8.19 L/100 km
3.48 gal (US)/100 mi
1173.51 Wh/mi
89 - around Montana. At this point I had a leak in my gas tank.
2009-05-30 360.1 mi
579.52 km
11.05 gal (US)
9.2 gal (Imp)
41.83 L
372.39 kWh
32.59 mpg (US)
39.14 mpg (Imp)
7.22 L/100 km
3.07 gal (US)/100 mi
1034.13 Wh/mi
89 - Montana - Part of tank with side mirrors off and cardboard grille block.
2009-05-20 306.9 mi
493.91 km
9.77 gal (US)
8.13 gal (Imp)
36.98 L
329.25 kWh
31.41 mpg (US)
37.75 mpg (Imp)
7.49 L/100 km
3.18 gal (US)/100 mi
1072.83 Wh/mi
89 - Montana
2009-05-15 378.3 mi
608.81 km
12.51 gal (US)
10.42 gal (Imp)
47.36 L
421.59 kWh
30.24 mpg (US)
36.31 mpg (Imp)
7.78 L/100 km
3.31 gal (US)/100 mi
1114.43 Wh/mi
89
2009-05-15 332.3 mi
534.79 km
10.5 gal (US)
8.74 gal (Imp)
39.75 L
353.85 kWh
31.65 mpg (US)
38.02 mpg (Imp)
7.43 L/100 km
3.16 gal (US)/100 mi
1064.85 Wh/mi
88
2009-05-15 373 mi
600.29 km
12.07 gal (US)
10.05 gal (Imp)
45.69 L
406.76 kWh
30.9 mpg (US)
37.11 mpg (Imp)
7.61 L/100 km
3.24 gal (US)/100 mi
1090.51 Wh/mi
88
2009-05-15 334.2 mi
537.84 km
10.3 gal (US)
8.58 gal (Imp)
38.99 L
347.11 kWh
32.45 mpg (US)
38.95 mpg (Imp)
7.25 L/100 km
3.08 gal (US)/100 mi
1038.63 Wh/mi
89
2009-05-14 403.3 mi
649.05 km
12.85 gal (US)
10.7 gal (Imp)
48.64 L
433.05 kWh
31.39 mpg (US)
37.69 mpg (Imp)
7.49 L/100 km
3.19 gal (US)/100 mi
1073.77 Wh/mi
89 - OK to MT
2009-05-10 348.6 mi
561.02 km
10.41 gal (US)
8.67 gal (Imp)
39.41 L
350.82 kWh
33.49 mpg (US)
40.21 mpg (Imp)
7.02 L/100 km
2.99 gal (US)/100 mi
1006.37 Wh/mi
89
2009-05-10 368.5 mi
593.04 km
11.1 gal (US)
9.24 gal (Imp)
42.02 L
374.07 kWh
33.2 mpg (US)
39.88 mpg (Imp)
7.09 L/100 km
3.01 gal (US)/100 mi
1015.12 Wh/mi
89
2009-05-10 325 mi
523.04 km
10.39 gal (US)
8.65 gal (Imp)
39.33 L
350.14 kWh
31.28 mpg (US)
37.57 mpg (Imp)
7.52 L/100 km
3.2 gal (US)/100 mi
1077.35 Wh/mi
89 - start trip from PA to OK
2009-05-09 302.5 mi
486.83 km
10.81 gal (US)
9 gal (Imp)
40.92 L
364.3 kWh
27.98 mpg (US)
33.61 mpg (Imp)
8.41 L/100 km
3.57 gal (US)/100 mi
1204.3 Wh/mi
89
2009-05-01 353.2 mi
568.42 km
11.97 gal (US)
9.97 gal (Imp)
45.31 L
403.39 kWh
29.51 mpg (US)
35.43 mpg (Imp)
7.97 L/100 km
3.39 gal (US)/100 mi
1142.1 Wh/mi
89 - all mileage adjusted for off-stock tire size
2004-09-09 89112 mi
143412 km
3297 gal (US)
2745.33 gal (Imp)
12480.5 L
111109 kWh
27.03 mpg (US)
32.46 mpg (Imp)
8.7 L/100 km
3.7 gal (US)/100 mi
1246.85 Wh/mi
I've kept fuel logs for Car since I first got it. There have been too many partial fills and errors to post individually, but the graph of 30-day averages is interesting.

Not too bad for a 4.5 year average of a 17 year old car that has, in my care, had three fuel leaks and a stuck brake caliper.

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


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