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Fuel log graph
Efficiency log for: Local D 2015 C-Max Energi - 2015 Ford C-Max Energy SEL
  • Lifetime Fuel Economy: 55.7 mpg (US), 4.2 L/100 km, 66.8 mpg (Imp)
  • 90-day Fuel Economy: 55.7 mpg (US), 4.2 L/100 km, 66.8 mpg (Imp)
  • 3-tank Fuel Economy: 56.1 mpg (US), 4.2 L/100 km, 67.4 mpg (Imp)
  • EPA Combined Rating / % over rating: 38 mpg (US) / 46.4% (based on 90-day fuel economy)
  • Total fills: 6
  • Average cost per gal/L: $2.15 per gal (US); $0.00 per L (price data entered for 6 fill/s)
  • Average cost per fill: $18.45
  • Average distance cost: $0.04 per mi. / $0.02 per km
  • Total fuel used: 51.5 gal (US), 195 L
  • Total distance traveled: 2866.1 mi. / 4612.5 km
  • Total cost: $110.71
  • Total fuel saved vs. EPA: 23.9 gal. (US) / 90.5 L
  • Total saved: $51.39 (based on avg. cost per gal./L)
  • Average tank distance: 477.7 mi. / 768.8 km
Fill date Distance Fill amount Price Fuel Economy Details
2017-03-11 524.5 mi
844.1 km
8.599 gal (US)
7.16 gal (Imp)
32.55 L
289.79 kWh
$2.27
($19.52 total for this fill)
61 mpg (US)
73.25 mpg (Imp)
3.86 L/100 km
1.64 gal (US)/100 mi
552.51 Wh/mi
#6. *Trying something new here. I am calculating the cost of the electricity and the gallons of gasoline separately, adding the two then dividing gallons-e into it to get the amortized cost of energy per gallon . It looks like this.*

524.5 miles on 6.049 gallons ($12.88) = 86. 7 mpg.
319 EV miles on (69.3 kWhrs x 1.23) = 85.239 kWh x $.08 = $6.82 + $12.88 = $19.70

6.049 gallons + (85,239/32.777) = 2.509 gallons e
2.509 gal e + 6.049 gals = 8.559 gals e.

This increases my apparent cost, but it takes into account the cost of electricity, and thus it is a more accurate accounting for that reason.

319 miles/2.509 = 127 mpg e figured separately.
2017-02-25 637.5 mi
1025.96 km
11.725 gal (US)
9.76 gal (Imp)
44.38 L
395.13 kWh
$1.999
($23.44 total for this fill)
54.37 mpg (US)
65.32 mpg (Imp)
4.33 L/100 km
1.84 gal (US)/100 mi
619.81 Wh/mi
#5. 9.178 gallons plus 83.5 kWh's/32.77 = 11.7255 gallons e. We had a check engine light so I cleaned the automatic fuel cap and pumping fresh gasoline in the car got the car to reevaluate the vapor recovery system integrity and the light went away.
2017-02-07 432 mi
695.24 km
8.072 gal (US)
6.72 gal (Imp)
30.56 L
272.03 kWh
$2.069
($16.7 total for this fill)
53.52 mpg (US)
64.29 mpg (Imp)
4.4 L/100 km
1.87 gal (US)/100 mi
629.7 Wh/mi
#4. Local driving, trying to do more EV miles. When we get our 240 volt charger we can do more. We used 58.6 kWh which equals 1.787 gallons plus the 6.285 gallons we pumped = 8.072 gallons.
2017-01-21 382.4 mi
615.41 km
7.285 gal (US)
6.07 gal (Imp)
27.58 L
245.5 kWh
$2.139
($15.58 total for this fill)
52.49 mpg (US)
63 mpg (Imp)
4.48 L/100 km
1.91 gal (US)/100 mi
642 Wh/mi
#3. An eclectic mix of driving. We had 6.038 actual gallons of gas and 40.9 kWhs of electricity or 1.427 gallons equivalent.
2017-01-04 455.3 mi
732.73 km
8.002 gal (US)
6.66 gal (Imp)
30.29 L
269.67 kWh
$2.26
($18.08 total for this fill)
56.9 mpg (US)
68.36 mpg (Imp)
4.13 L/100 km
1.76 gal (US)/100 mi
592.29 Wh/mi
#2. Gasoline pumped 6.038 gallons costing $12.98. Electricity used 64.4 kWh/32.777 = 1.964 gallons-e at $2.62.2 a gallons = $5.15 plus $12.98 = $18.13/8.002 = $2.26 a gallon average. However electricity used to charge the car was 99.16 kWh x $0.08 = $7.93 + $ 12.98 = $20.91/8.002 = $2.613 in this instance. Note:A new low voltage battery was installed on January 6th, 2017 as the OEM battery was defective.
2016-12-15 434.4 mi
699.1 km
7.821 gal (US)
6.51 gal (Imp)
29.61 L
263.57 kWh
$2.224
($17.39 total for this fill)
55.54 mpg (US)
66.73 mpg (Imp)
4.24 L/100 km
1.8 gal (US)/100 mi
606.74 Wh/mi
#1. Trip One Read Out. 434.4 miles, 67.2 mpg, 241 EV miles, 52.4 kWH's. 434.4/6.223 = 69.8 MPG. Factoring in electricity 52.4/32.777 = 1.5986 gallons. 6.223 gals + 1.5986 gals = 7.821 gallons. Hence 434.4/7.821 gals = 69.8 MPGe. Electrical cost 52.4 KWH x $0.08 = $16.48. Works out to 3.8 cents per mile with an averaged electrical consumption of 217 watt hours per mile. Note what electric drive in entry #2 does to fuel economy over entry #1. Says it all. Note 52.7 KWH/32.777 = 1.607 gallons e. 6.223 g + 1.607 gals e = 7.83 gallons. 434.4 m/7.83 gals = 55.47 MPGe

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


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