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Fuel log graph
Efficiency log for: VTEC Express - 1996 Honda Civic CX
  • Lifetime Fuel Economy: 53.4 mpg (US), 4.4 L/100 km, 64.1 mpg (Imp)
  • 90-day Fuel Economy: 57.7 mpg (US), 4.1 L/100 km, 69.3 mpg (Imp)
  • 3-tank Fuel Economy: 57.7 mpg (US), 4.1 L/100 km, 69.3 mpg (Imp)
  • EPA Combined Rating / % over rating: 31 mpg (US) / 86.2% (based on 90-day fuel economy)
  • Total fills: 9
  • Average cost per gal/L: $3.99 per gal (US); $0.00 per L (price data entered for 4 fill/s)
  • Average cost per fill: $35.82
  • Average distance cost: $0.07 per mi. / $0.04 per km
  • Total fuel used: 78.24 gal (US), 296.2 L
  • Total distance traveled: 4177.7 mi. / 6723.4 km
  • Total cost: $143.28
  • Total fuel saved vs. EPA: 56.5 gal. (US) / 213.9 L
  • Total saved: $225.44 (based on avg. cost per gal./L)
  • Average tank distance: 464.2 mi. / 747 km
Fill date Distance Fill amount Price Fuel Economy Details
2008-09-07 497.2 mi
800.17 km
8.537 gal (US)
7.11 gal (Imp)
32.32 L
287.7 kWh
$3.699
($31.58 total for this fill)
58.24 mpg (US)
69.93 mpg (Imp)
4.04 L/100 km
1.72 gal (US)/100 mi
578.64 Wh/mi
2008-08-19 541.1 mi
870.82 km
8.859 gal (US)
7.38 gal (Imp)
33.53 L
298.55 kWh
$3.939
($34.9 total for this fill)
61.08 mpg (US)
73.32 mpg (Imp)
3.85 L/100 km
1.64 gal (US)/100 mi
551.75 Wh/mi
55 psi
Trip to San Diego, CA and Torrance, CA at 15% tps
EOC P&G at every opportunity regardless of engine temp
2008-07-25 515.6 mi
829.78 km
9.525 gal (US)
7.93 gal (Imp)
36.06 L
320.99 kWh
$4.249
($40.47 total for this fill)
54.13 mpg (US)
65.02 mpg (Imp)
4.35 L/100 km
1.85 gal (US)/100 mi
622.56 Wh/mi
2008-05-27 511.9 mi
823.82 km
9.017 gal (US)
7.51 gal (Imp)
34.13 L
303.87 kWh
$4.029
($36.33 total for this fill)
56.77 mpg (US)
68.16 mpg (Imp)
4.14 L/100 km
1.76 gal (US)/100 mi
593.61 Wh/mi
05/08/2008 - Filled at an unfamiliar (76) station, for better or worse the pump had a 'may contain up to 10% Ethanol' sticker. I noticed it only after filling. :X

First 15 miles traveled on tank had full interior and tire pressure at ~53 psi.

05/09/2008 - Took a mandatory trip to the Norton Simon museum in Pasadena, CA. Interior was stripped prior to departure and tire pressure was refilled to 60 psi. Traveling there I tried to maintain 50-55 mph at 14% TPS. Interior fan was on (level 1) for ~1/3 of the trip.

The return trip I was stuck in traffic so was doing a lot of stuff under 35, tried to utilize the fuel cut through engine braking. When traffic cleared I was trying to maintain the same speed as before but had to use 17% TPS due to inclines.

Map so far

Remainder of tank consisted of school commute to Menifee and San Jacinto with 30% TPS pulses to 55 mph and EOC glides down to 27 MPH before starting over.

Plan to use the next few tanks to determine the optimum TPS.
2008-05-08 462.8 mi
744.8 km
9.273 gal (US)
7.72 gal (Imp)
35.1 L
312.5 kWh
49.91 mpg (US)
59.95 mpg (Imp)
4.71 L/100 km
2 gal (US)/100 mi
675.24 Wh/mi
Evening trip to San Diego (55 mph)
2 weeks of school commuting.
Interior was reinstalled for this tank.
Tire pressure was ~53 psi.
2008-04-26 309.4 mi
497.93 km
6.195 gal (US)
5.16 gal (Imp)
23.45 L
208.77 kWh
49.94 mpg (US)
59.96 mpg (Imp)
4.71 L/100 km
2 gal (US)/100 mi
674.76 Wh/mi
Trip to Long Beach, CA to pick up the Motobecane and back home. A week's worth of school commuting.

Map so far
2008-04-17 437.1 mi
703.44 km
8.062 gal (US)
6.71 gal (Imp)
30.52 L
271.69 kWh
54.22 mpg (US)
65.14 mpg (Imp)
4.34 L/100 km
1.84 gal (US)/100 mi
621.57 Wh/mi
This tank included the trip home from Las Vegas, NV driving 60-65mph, no Pulse and Glide but with a few instances of EOC.
As well as one week's worth of school commuting, 35-55 Pulse and Glide with EOC.

Tank map.

Chevron 87
2008-04-13 433 mi
696.85 km
9.603 gal (US)
8 gal (Imp)
36.35 L
323.62 kWh
45.09 mpg (US)
54.13 mpg (Imp)
5.22 L/100 km
2.22 gal (US)/100 mi
747.39 Wh/mi
This tank included one week's worth of school trips and a trip to Las Vegas, NV.

New additions to driving technique:
+Increased tire pressure to 60psi
+Pulsing and gliding on the freeway (70 to 55), utilizing engine off coasting on the down stroke.
2008-04-05 469.6 mi
755.75 km
9.173 gal (US)
7.64 gal (Imp)
34.72 L
309.13 kWh
51.19 mpg (US)
61.47 mpg (Imp)
4.59 L/100 km
1.95 gal (US)/100 mi
658.28 Wh/mi
Majority city driving to and from school, with one highway trip to Fallbrook, CA and another to Carmel Mountain, San Diego, CA.

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


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