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Fuel log graph
Efficiency log for: 2015 WRX - 2015 Subaru WRX
  • Lifetime Fuel Economy: 31 mpg (US), 7.6 L/100 km, 37.3 mpg (Imp)
  • 90-day Fuel Economy: 34.8 mpg (US), 6.8 L/100 km, 41.8 mpg (Imp)
  • 3-tank Fuel Economy: 34.4 mpg (US), 6.8 L/100 km, 41.3 mpg (Imp)
  • EPA Combined Rating / % over rating: 24 mpg (US) / 45% (based on 90-day fuel economy)
  • Total fills: 18
  • Average cost per gal/L: $4.54 per gal (US); $1.20 per L (price data entered for 18 fill/s)
  • Average cost per fill: $54.77
  • Average distance cost: $0.15 per mi. / $0.09 per km
  • Total fuel used: 217.43 gal (US), 823.1 L
  • Total distance traveled: 6745.1 mi. / 10855.1 km
  • Total cost: $985.81
  • Total fuel saved vs. EPA: 63.6 gal. (US) / 240.8 L
  • Total saved: $288.74 (based on avg. cost per gal./L)
  • Average tank distance: 374.7 mi. / 603.1 km
Fill date Distance Fill amount Price Fuel Economy Details
2018-08-12 1057.7 km
657.22 mi
74.33 L
19.64 gal (US)
16.35 gal (Imp)
661.87 kWh
$1.224
($90.98 total for this fill)
7.03 L/100 km
33.46 mpg (US)
40.2 mpg (Imp)
2.99 gal (US)/100 mi
1007.08 Wh/mi
Lots of WOT testing… 30+ pulls to dial in 87 octane ignition timing & boost, 2 trips to lake w/ some a/c use
2018-07-19 497 km
308.82 mi
34.914 L
9.22 gal (US)
7.68 gal (Imp)
310.71 kWh
$1.259
($43.96 total for this fill)
7.02 L/100 km
33.49 mpg (US)
40.21 mpg (Imp)
2.99 gal (US)/100 mi
1006.12 Wh/mi
87 octane. 380km highway heavy side/head winds for half the trip.
2018-07-09 852.3 km
529.59 mi
55.189 L
14.58 gal (US)
12.14 gal (Imp)
491.35 kWh
$1.319
($72.79 total for this fill)
6.48 L/100 km
36.32 mpg (US)
43.62 mpg (Imp)
2.75 gal (US)/100 mi
927.79 Wh/mi
87 octane fuel. 730km highway, 100km/hr, winds mostly unfavorable.
2018-05-22 852.8 km
529.91 mi
56 L
14.79 gal (US)
12.32 gal (Imp)
498.42 kWh
$1.244
($69.66 total for this fill)
6.57 L/100 km
35.83 mpg (US)
43.01 mpg (Imp)
2.79 gal (US)/100 mi
940.57 Wh/mi
Highway 363km, 95-100km/hr, mostly cross/head wind 8-20km/hr, second trip Highway 363km, Mostly Head Wind 10-18km/hr, ~125km city. Mostly 20-24 degrees C.
2018-05-03 445.8 km
277.01 mi
36.818 L
9.73 gal (US)
8.1 gal (Imp)
327.9 kWh
$1.324
($48.75 total for this fill)
8.26 L/100 km
28.47 mpg (US)
34.2 mpg (Imp)
3.51 gal (US)/100 mi
1183.71 Wh/mi
All city
2018-03-26 734 km
456.09 mi
53.796 L
14.21 gal (US)
11.83 gal (Imp)
478.88 kWh
$1.219
($65.58 total for this fill)
7.33 L/100 km
32.1 mpg (US)
38.55 mpg (Imp)
3.12 gal (US)/100 mi
1049.97 Wh/mi
530km highway 112-118km/hr, -1C, Very low winds (cross wind), Some off-roading, 200km city driving
2018-03-11 711.6 km
442.17 mi
54.855 L
14.49 gal (US)
12.07 gal (Imp)
488.31 kWh
$1.249
($68.51 total for this fill)
7.71 L/100 km
30.52 mpg (US)
36.63 mpg (Imp)
3.28 gal (US)/100 mi
1104.35 Wh/mi
95% Highway, 110-115km/hr, -10 to -4C, some heavy crosswinds, some tail wind for 140km. Stock tune for 140km. One start without block heater at -15C.
2018-03-09 357.6 km
222.2 mi
32.157 L
8.49 gal (US)
7.07 gal (Imp)
286.11 kWh
$1.189
($38.23 total for this fill)
8.99 L/100 km
26.17 mpg (US)
31.43 mpg (Imp)
3.82 gal (US)/100 mi
1287.62 Wh/mi
New Battery, All short trip city, short trip freeway. One 30km highway trip. -26C to -5C temps.
2018-02-05 427.9 km
265.88 mi
36.381 L
9.61 gal (US)
8 gal (Imp)
323.86 kWh
$1.159
($42.17 total for this fill)
8.5 L/100 km
27.67 mpg (US)
33.24 mpg (Imp)
3.61 gal (US)/100 mi
1218.07 Wh/mi
All city / freeway driving. 3C to -23C ambient temps. Some starts without block heater. Stock tune for one trip. Bad battery may have affected FE.
2018-01-13 630.1 km
391.53 mi
47.969 L
12.67 gal (US)
10.55 gal (Imp)
426.98 kWh
$1.195
($57.32 total for this fill)
7.61 L/100 km
30.9 mpg (US)
37.11 mpg (Imp)
3.24 gal (US)/100 mi
1090.54 Wh/mi
Mostly highway (540km), Some tail wind, but mostly side and head wind 20km/h+. ~100km/hr
2017-12-25 548.3 km
340.7 mi
44.79 L
11.83 gal (US)
9.85 gal (Imp)
398.67 kWh
$1.239
($55.49 total for this fill)
8.17 L/100 km
28.8 mpg (US)
34.59 mpg (Imp)
3.47 gal (US)/100 mi
1170.15 Wh/mi
380km highway, -22 to -27 degrees temp, windy.
2017-12-12 533.4 km
331.44 mi
41.052 L
10.84 gal (US)
9.03 gal (Imp)
365.31 kWh
$1.169
($47.99 total for this fill)
7.7 L/100 km
30.58 mpg (US)
36.7 mpg (Imp)
3.27 gal (US)/100 mi
1102.19 Wh/mi
Some tuning drives w/ WOT, otherwise normal city/freeway. Temps between 2C and -13C. Block heater & Oil Pan Heater.
2017-11-24 385 km
239.23 mi
33.975 L
8.98 gal (US)
7.47 gal (Imp)
302.63 kWh
$1.134
($38.53 total for this fill)
8.82 L/100 km
26.64 mpg (US)
32.03 mpg (Imp)
3.75 gal (US)/100 mi
1265.02 Wh/mi
All city driving, 0 to -20C temperatures. A lot of short trips. Snow. Some hooning.
2017-11-13 546.3 km
339.46 mi
45.309 L
11.97 gal (US)
9.97 gal (Imp)
403.39 kWh
$1.264
($57.27 total for this fill)
8.29 L/100 km
28.36 mpg (US)
34.05 mpg (Imp)
3.53 gal (US)/100 mi
1188.33 Wh/mi
All city/freeway driving. -20 to 0 degrees C. Hooning in the snow.
2017-10-21 586.1 km
364.19 mi
41.921 L
11.07 gal (US)
9.22 gal (Imp)
373.06 kWh
$1.069
($44.81 total for this fill)
7.15 L/100 km
32.9 mpg (US)
39.5 mpg (Imp)
3.04 gal (US)/100 mi
1024.36 Wh/mi
Fresh oil, oil pan heater installed, used once, 195km city/freeway, 390km highway, windy and rainy half the drive, 100km/hr… some head, tail, and side winds. 8 degrees C ambient.
2017-10-15 442.5 km
274.96 mi
34.683 L
9.16 gal (US)
7.63 gal (Imp)
308.69 kWh
$1.054
($36.56 total for this fill)
7.84 L/100 km
30.02 mpg (US)
36.04 mpg (Imp)
3.33 gal (US)/100 mi
1122.67 Wh/mi
Mix of city, freeway, highway. No long trips. Few really short trips. Many 3rd Gear WOT pulls for tuning boost and ignition timing. Temps 0 to 16 degrees C. Block heater used a couple of times. Smaller lower grill block installed. DWS06 tires.
2017-10-05 594.7 km
369.53 mi
47.12 L
12.45 gal (US)
10.36 gal (Imp)
419.57 kWh
$1.049
($49.43 total for this fill)
7.92 L/100 km
29.68 mpg (US)
35.67 mpg (Imp)
3.37 gal (US)/100 mi
1135.42 Wh/mi
Mix of city, freeway, short highway drives, 7C to 17C ambient temps, DSW-06 tires, Lower Grill Block, Lean Burn Experimenting on 94 Octane. 92 Octane this fill.
2017-09-21 652 km
405.13 mi
51.868 L
13.7 gal (US)
11.41 gal (Imp)
461.69 kWh
$1.114
($57.78 total for this fill)
7.96 L/100 km
29.57 mpg (US)
35.51 mpg (Imp)
3.38 gal (US)/100 mi
1139.61 Wh/mi

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


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