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Fuel log graph
Efficiency log for: Local 240 volt 2015 C-Max Energi - 2015 Ford C Max Energi SLE
  • Lifetime Fuel Economy: 59.7 mpg (US), 3.9 L/100 km, 71.7 mpg (Imp)
  • 90-day Fuel Economy: 57.6 mpg (US), 4.1 L/100 km, 69.2 mpg (Imp)
  • 3-tank Fuel Economy: 57.4 mpg (US), 4.1 L/100 km, 69 mpg (Imp)
  • EPA Combined Rating / % over rating: 38 mpg (US) / 51.7% (based on 90-day fuel economy)
  • Total fills: 14
  • Average cost per gal/L: $2.37 per gal (US); $0.00 per L (price data entered for 14 fill/s)
  • Average cost per fill: $21.49
  • Average distance cost: $0.04 per mi. / $0.02 per km
  • Total fuel used: 126.91 gal (US), 480.4 L
  • Total distance traveled: 7576.3 mi. / 12192.9 km
  • Total cost: $300.86
  • Total fuel saved vs. EPA: 72.5 gal. (US) / 274.4 L
  • Total saved: $171.83 (based on avg. cost per gal./L)
  • Average tank distance: 541.2 mi. / 870.9 km
Fill date Distance Fill amount Price Fuel Economy Details
2017-12-01 376.3 mi
605.6 km
6.654 gal (US)
5.54 gal (Imp)
25.19 L
224.24 kWh
$2.502
($16.65 total for this fill)
56.55 mpg (US)
67.92 mpg (Imp)
4.16 L/100 km
1.77 gal (US)/100 mi
595.91 Wh/mi
#14. This is the last fuel log this title. On the 15th of December we will start the three new logs, Energi Comb, Energi EV Only, and Energi IC Only. For this mpg run we logged 4.34 gallons purchased 63.4 kWh used, 77.982 kWh with charging loses for 2.314 gallons e using the EPA Cycle 33.7 kWh per gallon. Total gallons for 6.654 gallons e for 376.3 mi, of which 244.3 EV mi leaving 132 IC mi. This Ford C Max Energi is officially one year old today so this is a one year log if you combine all three logs. P.S. I need to have the front passenger side tire looked at for a slow leak. it is 2 psi down compared to the other ones?
2017-11-15 556.7 mi
895.92 km
9.348 gal (US)
7.78 gal (Imp)
35.39 L
315.03 kWh
$2.467
($23.06 total for this fill)
59.55 mpg (US)
71.56 mpg (Imp)
3.95 L/100 km
1.68 gal (US)/100 mi
565.89 Wh/mi
#13. 556.7 miles using 6.406 gallons plus 2.942 gallons ev of gas totaling 9.348 gallons e. We pulled 33.25 mpg for IC only, 116.825 mpg for EV only. The tracking for regen miles which we started today will amend these figures for the next fill up once we get a regen total.
2017-10-31 602 mi
968.83 km
10.72 gal (US)
8.93 gal (Imp)
40.58 L
361.26 kWh
$2.359
($25.29 total for this fill)
56.16 mpg (US)
67.41 mpg (Imp)
4.19 L/100 km
1.78 gal (US)/100 mi
600.1 Wh/mi
#12. Drove 602 miles, with 372.6 of them EV miles, leaving 229.4 IC miles. Used 7.17 gallons of gasoline and 108.363 kWh of electricity including charging losses. 108.363/32.777 = 3.55 gallons of gas equivalent for a total of 10.72 gallons equivalent.

602 mi/10.72 gal = 56.156 mpg e
372.6 mi/3.55 gal = 104.95 mpg EV
229.4 mi/7.17 gal = 31.99 mpg IC
2017-10-03 399.3 mi
642.61 km
7.126 gal (US)
5.93 gal (Imp)
26.97 L
240.15 kWh
$2.402
($17.12 total for this fill)
56.03 mpg (US)
67.34 mpg (Imp)
4.2 L/100 km
1.78 gal (US)/100 mi
601.43 Wh/mi
#11. Did 252.6 EV miles, and 146.7 IC miles for a total of 399.3 miles. Used 5.145 gallons for IC operations for a dismal 28.51 MPG. Used 64.944 kWh for EV operations which translates to 1.981 gallons e for 127.5 MPG ev.
MY composite was 56.034 mpg e. The only thing I can think of to account for these results is higher speed IC operations.
2017-09-22 686.8 mi
1105.3 km
11.634 gal (US)
9.69 gal (Imp)
44.04 L
392.07 kWh
$2.485
($28.91 total for this fill)
59.03 mpg (US)
70.88 mpg (Imp)
3.98 L/100 km
1.69 gal (US)/100 mi
570.86 Wh/mi
#10. While we drove 686.8 miles only 238.9 miles of that was IC miles. We used 100 kWh to drive 447.3 EV miles or 123 kWh to charge/32.777 = 3.752 gallons e plus the 7.882 gallons pumped at $2.419 a gallon. Electricity is calculated at 8 cents a kWh. This is in preparation for a road trip tomorrow so I drove home from the gas station 18.5 miles using only electricity. This will allow me to do a pure highway mpg calculation for the car, (using some electricity.
2017-08-31 481.2 mi
774.42 km
7.86 gal (US)
6.54 gal (Imp)
29.75 L
264.88 kWh
$2.159
($16.97 total for this fill)
61.22 mpg (US)
73.58 mpg (Imp)
3.84 L/100 km
1.63 gal (US)/100 mi
550.46 Wh/mi
#9. Car was parked for 10 days (08/17 to 08/27) while we were on vacation. We fueled up when we got back because Hurricane Harvey was causing gas prices to rise and we only needed 4.802 gallons of gas to fill the tank. The 3.058 gallons unaccounted for at gallons equivalent from electricity in to the battery pack. We feel we can easily make it into October before fueling again saving money not having to buy higher priced gasoline.
2017-08-03 611.4 mi
983.95 km
9.777 gal (US)
8.14 gal (Imp)
37.01 L
329.48 kWh
$2.316
($22.64 total for this fill)
62.53 mpg (US)
75.11 mpg (Imp)
3.76 L/100 km
1.6 gal (US)/100 mi
538.89 Wh/mi
#8. The usual back and forth driving to the post office, the family dollar, and to Dori's house. Some trips to town as is usual. gasoline 6.445 gals, Electricity 88.8 kWh x 1.23 = 109.224 kWhs / 32.777 kWh = 3.332 gallons e. Gas $13.91 = Electricity $8.73 = $22.64/9.777 = $2.316 per gallon e.
2017-07-17 502.3 mi
808.37 km
8.216 gal (US)
6.84 gal (Imp)
31.1 L
276.88 kWh
$2.196
($18.04 total for this fill)
61.14 mpg (US)
73.44 mpg (Imp)
3.85 L/100 km
1.64 gal (US)/100 mi
551.22 Wh/mi
#7. Total gas 5.601 gallons at $1.999 a gallon plus 85.731 kWh of electricity at 8 cents a kWh for a total of 2.615 gallons e = 8.216 gallons e total for $18.05 which equals $2.196 a gallon averaged.
2017-06-17 437.6 mi
704.25 km
7.274 gal (US)
6.06 gal (Imp)
27.54 L
245.13 kWh
$2.334
($16.98 total for this fill)
60.16 mpg (US)
72.21 mpg (Imp)
3.91 L/100 km
1.66 gal (US)/100 mi
560.17 Wh/mi
#6. Fueling prior to a trip City of Rocks State Park to participate in the last program until September.
2017-06-02 710.2 mi
1142.96 km
11.529 gal (US)
9.6 gal (Imp)
43.64 L
388.53 kWh
$2.551
($29.41 total for this fill)
61.6 mpg (US)
73.98 mpg (Imp)
3.82 L/100 km
1.62 gal (US)/100 mi
547.07 Wh/mi
#5. 7.477 gallons of gas, 4.055 gals EV totaling 11.529 gallons e over 710.2 miles. 115 mpg EV, 32.165 mpg IC.
Averaged 61.59 mpg e with 66% EV driving.
2017-05-08 504.8 mi
812.4 km
8.908 gal (US)
7.42 gal (Imp)
33.72 L
300.2 kWh
$2.349
($20.92 total for this fill)
56.67 mpg (US)
68.03 mpg (Imp)
4.15 L/100 km
1.76 gal (US)/100 mi
594.69 Wh/mi
#4. Good mix 33.4%ICE/ 66.6% EV but it is beginning to look AC is lowering the MPG e. 5.929 gallons of gas, 79.4 kWh x 1.23 = 97.662 kWh / 32.777 = 2.979 gals e.
Total 5.929 + 2.979 = 8.908 gals e.
2017-04-27 171.6 mi
276.16 km
2.86 gal (US)
2.38 gal (Imp)
10.83 L
96.38 kWh
$2.35
($6.72 total for this fill)
60 mpg (US)
72.1 mpg (Imp)
3.92 L/100 km
1.67 gal (US)/100 mi
561.66 Wh/mi
#3. Missing miles inserted here using a 60 mpg average. This is to get the fuel log to agree with the odometer.
2017-04-11 1011.6 mi
1628.01 km
16.441 gal (US)
13.69 gal (Imp)
62.24 L
554.06 kWh
$2.355
($38.72 total for this fill)
61.53 mpg (US)
73.89 mpg (Imp)
3.82 L/100 km
1.63 gal (US)/100 mi
547.71 Wh/mi
#2. A 31 day run for proof of concept of over a 1,000 miles run between refueling. Total gasoline gallons 10.362 gallons costing $22.79. Total electrical equivalent gallons 6.079 gallons costing $15.94. Drove 340.2 miles on gas and 671.4 miles in EV mode. The mix was 66.37% EV miles was 33.63% ICE miles. Actual ICE mpg was 32.83 mpg. EV mileage was 110.445 mpg ev. Aggregate mileage was 61.5 mpg e.
2017-03-11 524.5 mi
844.1 km
8.559 gal (US)
7.13 gal (Imp)
32.4 L
288.44 kWh
$2.27
($19.43 total for this fill)
61.28 mpg (US)
73.56 mpg (Imp)
3.84 L/100 km
1.63 gal (US)/100 mi
549.93 Wh/mi
edit][delete] #1. *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.

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


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