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Fuel log graph
Efficiency log for: Trans Am - 1982 Pontiac Firebird Trans Am
  • Lifetime Fuel Economy: 20.8 mpg (US), 11.3 L/100 km, 25 mpg (Imp)
  • 90-day Fuel Economy: 20.8 mpg (US), 11.3 L/100 km, 25 mpg (Imp)
  • 3-tank Fuel Economy: 20.9 mpg (US), 11.3 L/100 km, 25.1 mpg (Imp)
  • EPA Combined Rating / % over rating: 17 mpg (US) / 22.6% (based on 90-day fuel economy)
  • Total fills: 5
  • Average cost per gal/L: $3.57 per gal (US); $0.00 per L (price data entered for 4 fill/s)
  • Average cost per fill: $51.43
  • Average distance cost: $0.17 per mi. / $0.11 per km
  • Total fuel used: 72.45 gal (US), 274.3 L
  • Total distance traveled: 1509.6 mi. / 2429.5 km
  • Total cost: $205.71
  • Total fuel saved vs. EPA: 16.3 gal. (US) / 61.7 L
  • Total saved: $58.19 (based on avg. cost per gal./L)
  • Average tank distance: 301.9 mi. / 485.9 km
Fill date Distance Fill amount Price Fuel Economy Details
2014-03-19 293.7 mi
472.66 km
13.91 gal (US)
11.58 gal (Imp)
52.66 L
468.77 kWh
$3.48
($48.41 total for this fill)
21.11 mpg (US)
25.36 mpg (Imp)
11.14 L/100 km
4.74 gal (US)/100 mi
1596.08 Wh/mi
2014-03-12 299.1 mi
481.35 km
14.885 gal (US)
12.4 gal (Imp)
56.35 L
501.62 kWh
$3.46
($51.5 total for this fill)
20.09 mpg (US)
24.12 mpg (Imp)
11.71 L/100 km
4.98 gal (US)/100 mi
1677.1 Wh/mi
Thermostat problem, and possibly low tire pressure from spastic weather this week.
2014-03-06 299.2 mi
481.52 km
13.9 gal (US)
11.57 gal (Imp)
52.62 L
468.43 kWh
$3.59
($49.9 total for this fill)
21.53 mpg (US)
25.86 mpg (Imp)
10.93 L/100 km
4.65 gal (US)/100 mi
1565.61 Wh/mi
First full tank with extended air dam. Plus it was cold in the 30's all week. Several wide open trottle runs on top of that. I'm still impressed.
2014-03-01 322 mi
518.21 km
14.85 gal (US)
12.36 gal (Imp)
56.21 L
500.45 kWh
21.68 mpg (US)
26.05 mpg (Imp)
10.85 L/100 km
4.61 gal (US)/100 mi
1554.19 Wh/mi
Better driving.
added extended air dam at 225 miles on tank.
2014-02-24 295.6 mi
475.72 km
14.906 gal (US)
12.41 gal (Imp)
56.43 L
502.33 kWh
$3.75
($55.9 total for this fill)
19.83 mpg (US)
23.82 mpg (Imp)
11.86 L/100 km
5.04 gal (US)/100 mi
1699.36 Wh/mi

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


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