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Fuel log graph
Efficiency log for: Electric Cycle - 1981 Kawasaki KZ440
  • Lifetime Fuel Economy: 327.1 mpg (US), 0.7 L/100 km, 392.8 mpg (Imp)
  • 90-day Fuel Economy: 334.6 mpg (US), 0.7 L/100 km, 401.8 mpg (Imp)
  • 3-tank Fuel Economy: 384.6 mpg (US), 0.6 L/100 km, 461.9 mpg (Imp)
  • EPA Combined Rating / % over rating: 60 mpg (US) / 0% (based on 90-day fuel economy)
  • Total fills: 10
  • Average cost per gal/L: $0.37 per gal (US); $0.00 per L (price data entered for 1 fill/s)
  • Average cost per fill: $0.03
  • Average distance cost: $0.00 per mi. / $0.00 per km
  • Total fuel used: 0.46 gal (US), 1.7 L
  • Total distance traveled: 151 mi. / 243.1 km
  • Total cost: $0.03
  • Total fuel saved vs. EPA: 2.1 gal. (US) / 7.9 L
  • Total saved: $0.78 (based on avg. cost per gal./L)
  • Average tank distance: 15.1 mi. / 24.3 km
Fill date Distance Fill amount Price Fuel Economy Details
2008-08-20 7 mi
11.27 km
0.0202 gal (US)
0.02 gal (Imp)
0.08 L
0.68 kWh
346.53 mpg (US)
350 mpg (Imp)
0.71 L/100 km
0.29 gal (US)/100 mi
97.14 Wh/mi
typical ride. Work and back plus errands
2008-07-24 11.5 mi
18.51 km
0.039 gal (US)
0.03 gal (Imp)
0.15 L
1.31 kWh
294.87 mpg (US)
383.33 mpg (Imp)
0.81 L/100 km
0.34 gal (US)/100 mi
113.91 Wh/mi
Brake was dragging?

When I was going 45, I could really see the voltage drop, maybe the brake sticking? Just wind resistance?, not sure

This run was mostly north of my house, where it is all 45 mph.
2008-07-22 33.5 mi
53.91 km
0.076 gal (US)
0.06 gal (Imp)
0.29 L
2.56 kWh
$0.37
($0.03 total for this fill)
440.79 mpg (US)
558.33 mpg (Imp)
0.54 L/100 km
0.23 gal (US)/100 mi
76.42 Wh/mi
Did sort of an "endurance run" to see how far I could go on a charge.

A lot of this was on slow roads.
2008-06-25 16.4 mi
26.39 km
0.05 gal (US)
0.04 gal (Imp)
0.19 L
1.69 kWh
328 mpg (US)
410 mpg (Imp)
0.72 L/100 km
0.3 gal (US)/100 mi
103.05 Wh/mi
To and from my parents's house. Dinner with relatives. Show off the cycle.
2008-06-05 7.5 mi
12.07 km
0.0246 gal (US)
0.02 gal (Imp)
0.09 L
0.83 kWh
304.88 mpg (US)
375 mpg (Imp)
0.75 L/100 km
0.33 gal (US)/100 mi
110.67 Wh/mi
charge right after controller blew
2008-06-04 11.6 mi
18.67 km
0.037 gal (US)
0.03 gal (Imp)
0.14 L
1.25 kWh
313.51 mpg (US)
386.67 mpg (Imp)
0.75 L/100 km
0.32 gal (US)/100 mi
107.76 Wh/mi
Charge with new 48V charger
2008-05-25 28.54 mi
45.93 km
0.1 gal (US)
0.08 gal (Imp)
0.38 L
3.37 kWh
285.4 mpg (US)
356.75 mpg (Imp)
0.83 L/100 km
0.35 gal (US)/100 mi
118.08 Wh/mi
Riding double to and from farmers market.
Drove pretty slow. Went through 25, 15, 45, 25 mph zones.
2008-03-20 5 mi
8.05 km
0.015 gal (US)
0.01 gal (Imp)
0.06 L
0.51 kWh
333.33 mpg (US)
500 mpg (Imp)
0.75 L/100 km
0.3 gal (US)/100 mi
102 Wh/mi
calculation based on converting watt hours used to recharge to BTUs to gasoline.

Some rounding errors due to using such small numbers compared to gasoline. Economy should be right about 321 MPG for this trip
2008-02-13 15 mi
24.14 km
0.05 gal (US)
0.04 gal (Imp)
0.19 L
1.69 kWh
300 mpg (US)
375 mpg (Imp)
0.79 L/100 km
0.33 gal (US)/100 mi
112.67 Wh/mi
Dummy fuel log entry - just an average of previously recorded real-world economy to make show up with my avatar.
2007-10-01 15 mi
24.14 km
0.05 gal (US)
0.04 gal (Imp)
0.19 L
1.69 kWh
300 mpg (US)
375 mpg (Imp)
0.79 L/100 km
0.33 gal (US)/100 mi
112.67 Wh/mi
Doesn't use gas! Uses electricity! I am substituting the COST of electricity from my wall - (including taxes and everything, not just KWH price) compared to the same amount of cost of gasoline.

Seems like the most practical way to calculate - also, my "MPG" increases as gas cost goes up!

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


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