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Fuel log graph
Efficiency log for: miata - 1993 Mazda Miata
  • Lifetime Fuel Economy: 38.8 mpg (US), 6.1 L/100 km, 46.6 mpg (Imp)
  • 90-day Fuel Economy: no fills in past 90 days
  • 3-tank Fuel Economy: 39.1 mpg (US), 6 L/100 km, 46.9 mpg (Imp)
  • EPA Combined Rating / % over rating: 24 mpg (US) / 0% (based on 90-day fuel economy)
  • Total fills: 7
  • Average cost per gal/L: $5.03 per gal (US); $1.33 per L (price data entered for 7 fill/s)
  • Average cost per fill: $26.48
  • Average distance cost: $0.13 per mi. / $0.08 per km
  • Total fuel used: 36.76 gal (US), 139.2 L
  • Total distance traveled: 1425.7 mi. / 2294.4 km
  • Total cost: $185.33
  • Total fuel saved vs. EPA: 22.6 gal. (US) / 85.6 L
  • Total saved: $113.68 (based on avg. cost per gal./L)
  • Average tank distance: 203.7 mi. / 327.8 km
Fill date Distance Fill amount Price Fuel Economy Details
2012-05-14 470.5 km
292.36 mi
25.535 L
6.75 gal (US)
5.62 gal (Imp)
227.48 kWh
$1.29
($32.94 total for this fill)
5.43 L/100 km
43.31 mpg (US)
52.02 mpg (Imp)
2.31 gal (US)/100 mi
778.08 Wh/mi
First tank with the 195 70 14 tires at 44psi. They rolled much better and allowed me to do a lot more EOC, I also tried with highway P&G 100-80km/hr. I could have went a lot further on this tank as it wasn't even at 1/4 but I have to take the car into get it's drive clean test done and wanted a full tank before and after to negate all that test time they burn fuel for.
2012-05-08 142 km
88.23 mi
8.65 L
2.29 gal (US)
1.9 gal (Imp)
77.17 kWh
$1.28
($11.07 total for this fill)
6.09 L/100 km
38.53 mpg (US)
46.44 mpg (Imp)
2.6 gal (US)/100 mi
874.65 Wh/mi
Topped up to get a good idea of the gain/loss from the new tires. Next tank will be on 195 70 14 drive, 185 70 14 front. 45psi all around.
2012-05-03 421 km
261.6 mi
28.03 L
7.4 gal (US)
6.17 gal (Imp)
249.38 kWh
$1.3
($36.44 total for this fill)
6.66 L/100 km
35.35 mpg (US)
42.4 mpg (Imp)
2.83 gal (US)/100 mi
953.29 Wh/mi
Had a belt brake early on with this tank then went away for 3 weeks. Had to get back into the eco driving style. As much EOC as I could with this tank, I was really disapointed how low this tank was. Checked tire pressure and had to fill up 2 about 100km into tank.
2012-04-05 249.9 km
155.28 mi
14.35 L
3.79 gal (US)
3.16 gal (Imp)
127.72 kWh
$1.39
($19.95 total for this fill)
5.74 L/100 km
40.97 mpg (US)
49.14 mpg (Imp)
2.44 gal (US)/100 mi
822.51 Wh/mi
Half the tank with a full grill block, filled up at the same pump as refill 1&2. I was hopping for 5.5. The tires I have won't stay at 39 psi (max sidewalk is 34) and i think that's really hurting my mpg
2012-04-02 231 km
143.54 mi
14.12 L
3.73 gal (US)
3.11 gal (Imp)
125.7 kWh
$1.36
($19.2 total for this fill)
6.11 L/100 km
38.48 mpg (US)
46.15 mpg (Imp)
2.6 gal (US)/100 mi
875.71 Wh/mi
Filled up at a different station. I think more fuel went in for the first click than normal. It's normal for first click to show just under full this time it showed full. I estimate that I may have got 35km before the gauge showed what would be a usual first click fill up. That would have put the tank around 5.3l/100. I did a lot of EOC and had new aero mods for the last 170km, no pop up headlights, tire spats, 85% grill block partial front undertray. 95km avg hwy speed no stop and go 80km city.
2012-03-29 408 km
253.52 mi
25.79 L
6.81 gal (US)
5.67 gal (Imp)
229.5 kWh
$1.37
($35.33 total for this fill)
6.32 L/100 km
37.23 mpg (US)
44.71 mpg (Imp)
2.69 gal (US)/100 mi
905.25 Wh/mi
Pass side mirror delete, tried more pulse and glide and started trying some engine off coasting, however 2 days were stop and go for about 100km and 100km city driving vs the previous tanks 50km of stop and go and 70km city.
2012-03-25 372 km
231.15 mi
22.69 L
5.99 gal (US)
4.99 gal (Imp)
201.86 kWh
$1.34
($30.4 total for this fill)
6.1 L/100 km
38.59 mpg (US)
46.32 mpg (Imp)
2.59 gal (US)/100 mi
873.29 Wh/mi

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


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