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Fuel log graph
Efficiency log for: Light_Foot - 1993 Chevrolet Silverado 1500
  • Lifetime Fuel Economy: 17.2 mpg (US), 13.7 L/100 km, 20.6 mpg (Imp)
  • 90-day Fuel Economy: 18.9 mpg (US), 12.4 L/100 km, 22.7 mpg (Imp)
  • 3-tank Fuel Economy: 18.7 mpg (US), 12.6 L/100 km, 22.5 mpg (Imp)
  • EPA Combined Rating / % over rating: 14 mpg (US) / 35.2% (based on 90-day fuel economy)
  • Total fills: 27
  • Average cost per gal/L: $3.00 per gal (US); $0.00 per L (price data entered for 21 fill/s)
  • Average cost per fill: $58.28
  • Average distance cost: $0.18 per mi. / $0.11 per km
  • Total fuel used: 507.63 gal (US), 1921.6 L
  • Total distance traveled: 8724 mi. / 14039.9 km
  • Total cost: $1,223.87
  • Total fuel saved vs. EPA: 115.5 gal. (US) / 437.2 L
  • Total saved: $346.5 (based on avg. cost per gal./L)
  • Average tank distance: 323.1 mi. / 520 km
Fill date Distance Fill amount Price Fuel Economy Details
2015-06-05 325 mi
523.04 km
17.5 gal (US)
14.57 gal (Imp)
66.24 L
589.75 kWh
$2.45
($42.88 total for this fill)
18.57 mpg (US)
22.31 mpg (Imp)
12.66 L/100 km
5.38 gal (US)/100 mi
1814.62 Wh/mi
Hauling truck load of wood to the in-laws, most weight ever carried.
2015-05-27 315 mi
506.94 km
17.1 gal (US)
14.24 gal (Imp)
64.73 L
576.27 kWh
18.42 mpg (US)
22.12 mpg (Imp)
12.77 L/100 km
5.43 gal (US)/100 mi
1829.43 Wh/mi
2015-05-12 410 mi
659.83 km
21.5 gal (US)
17.9 gal (Imp)
81.39 L
724.55 kWh
$2.65
($56.98 total for this fill)
19.07 mpg (US)
22.91 mpg (Imp)
12.33 L/100 km
5.24 gal (US)/100 mi
1767.2 Wh/mi
2015-03-27 415 mi
667.88 km
21.3 gal (US)
17.74 gal (Imp)
80.63 L
717.81 kWh
$2.29
($48.78 total for this fill)
19.48 mpg (US)
23.39 mpg (Imp)
12.07 L/100 km
5.13 gal (US)/100 mi
1729.66 Wh/mi
2015-02-21 243 mi
391.07 km
12.6 gal (US)
10.49 gal (Imp)
47.7 L
424.62 kWh
$2.28
($28.73 total for this fill)
19.29 mpg (US)
23.16 mpg (Imp)
12.2 L/100 km
5.19 gal (US)/100 mi
1747.41 Wh/mi
Partial fuel up in preparation for winter weather this week.
2015-02-06 472 mi
759.61 km
23.43 gal (US)
19.51 gal (Imp)
88.69 L
789.59 kWh
$2.02
($47.33 total for this fill)
20.15 mpg (US)
24.19 mpg (Imp)
11.68 L/100 km
4.96 gal (US)/100 mi
1672.86 Wh/mi
2015-01-14 260 mi
418.43 km
19.3 gal (US)
16.07 gal (Imp)
73.06 L
650.41 kWh
$1.85
($35.71 total for this fill)
13.47 mpg (US)
16.18 mpg (Imp)
17.46 L/100 km
7.42 gal (US)/100 mi
2501.58 Wh/mi
Second tank of hauling weight for traction on the roadways.
2014-12-27 297 mi
477.98 km
18.5 gal (US)
15.4 gal (Imp)
70.03 L
623.45 kWh
$1.95
($36.08 total for this fill)
16.05 mpg (US)
19.29 mpg (Imp)
14.65 L/100 km
6.23 gal (US)/100 mi
2099.16 Wh/mi
2014-11-15 397 mi
638.91 km
17.5 gal (US)
14.57 gal (Imp)
66.24 L
589.75 kWh
$2.28
($39.9 total for this fill)
22.69 mpg (US)
27.25 mpg (Imp)
10.37 L/100 km
4.41 gal (US)/100 mi
1485.52 Wh/mi
2014-10-31 331 mi
532.69 km
17 gal (US)
14.16 gal (Imp)
64.35 L
572.9 kWh
19.47 mpg (US)
23.38 mpg (Imp)
12.08 L/100 km
5.14 gal (US)/100 mi
1730.82 Wh/mi
No hho, groove+magnets+wire and easy driving.
2014-10-07 309 mi
497.29 km
16 gal (US)
13.32 gal (Imp)
60.57 L
539.2 kWh
19.31 mpg (US)
23.2 mpg (Imp)
12.18 L/100 km
5.18 gal (US)/100 mi
1744.98 Wh/mi
No hho, groove+magnets+wire and easy driving.
2014-09-15 305 mi
490.85 km
15.6 gal (US)
12.99 gal (Imp)
59.05 L
525.72 kWh
19.55 mpg (US)
23.48 mpg (Imp)
12.03 L/100 km
5.11 gal (US)/100 mi
1723.67 Wh/mi
No hho, groove+magnets+wire and easy driving.
2014-08-21 320 mi
514.99 km
17.4 gal (US)
14.49 gal (Imp)
65.87 L
586.38 kWh
18.39 mpg (US)
22.08 mpg (Imp)
12.79 L/100 km
5.44 gal (US)/100 mi
1832.44 Wh/mi
No hho, groove+magnets+wire and easy driving. Oil changed to Royal Purple 5w-30.
2014-07-30 315 mi
506.94 km
16.3 gal (US)
13.57 gal (Imp)
61.7 L
549.31 kWh
19.33 mpg (US)
23.21 mpg (Imp)
12.17 L/100 km
5.17 gal (US)/100 mi
1743.84 Wh/mi
No hho, groove+magnets+wire and easy driving.
2014-07-20 262 mi
421.65 km
13.3 gal (US)
11.08 gal (Imp)
50.35 L
448.21 kWh
$3.54
($47.08 total for this fill)
19.7 mpg (US)
23.65 mpg (Imp)
11.94 L/100 km
5.08 gal (US)/100 mi
1710.73 Wh/mi
New low rolling resistance tires, weekend of shopping in city traffic with a/c running. Throttle body modification, magnets and resonant wire. No aero mods as of yet.
2014-07-18 136 mi
218.87 km
7.1 gal (US)
5.91 gal (Imp)
26.88 L
239.27 kWh
$3.54
($25.13 total for this fill)
19.15 mpg (US)
23.01 mpg (Imp)
12.28 L/100 km
5.22 gal (US)/100 mi
1759.34 Wh/mi
Short refill, replaced tires and wanted accurate assessment of new mileage with tires installed. No hydrogen, throttle body mod, magnets and resonant wire only. City mileage after new cat. converter and exhaust system.
2014-07-15 304 mi
489.24 km
21.7 gal (US)
18.07 gal (Imp)
82.14 L
731.29 kWh
$3.64
($78.99 total for this fill)
14.01 mpg (US)
16.82 mpg (Imp)
16.79 L/100 km
7.14 gal (US)/100 mi
2405.56 Wh/mi
Fill up after having clogged catalytic converter changed and cat-back exhaust installed. Smooth acceleration and staying under 2k rpm is much easier.
2014-06-17 310 mi
498.9 km
22.1 gal (US)
18.4 gal (Imp)
83.66 L
744.77 kWh
$3.59
($79.34 total for this fill)
14.03 mpg (US)
16.85 mpg (Imp)
16.77 L/100 km
7.13 gal (US)/100 mi
2402.48 Wh/mi
Still running modified throttle body, magnets and resonant wire. Feeling a little sluggish, need to have the exhaust checked.
2014-05-02 325 mi
523.04 km
21.6 gal (US)
17.98 gal (Imp)
81.76 L
727.92 kWh
$3.45
($74.52 total for this fill)
15.05 mpg (US)
18.08 mpg (Imp)
15.63 L/100 km
6.65 gal (US)/100 mi
2239.75 Wh/mi
All city driving, 5 miles one way to work.
2014-04-04 360 mi
579.36 km
22.3 gal (US)
18.57 gal (Imp)
84.41 L
751.51 kWh
$3.68
($82.06 total for this fill)
16.14 mpg (US)
19.39 mpg (Imp)
14.57 L/100 km
6.19 gal (US)/100 mi
2087.53 Wh/mi
Tried coasting when I could, stayed under 45 mph and 1800 rpm. Not optimal with current HP, as it took the entire time of a green light cycle to clear the intersections.
2014-03-07 312 mi
502.12 km
21.7 gal (US)
18.07 gal (Imp)
82.14 L
731.29 kWh
$3.59
($77.9 total for this fill)
14.38 mpg (US)
17.27 mpg (Imp)
16.36 L/100 km
6.96 gal (US)/100 mi
2343.88 Wh/mi
City driving with throttle body mod, magnets and resonant wire.
2014-02-28 389 mi
626.03 km
22.3 gal (US)
18.57 gal (Imp)
84.41 L
751.51 kWh
$3.35
($74.71 total for this fill)
17.44 mpg (US)
20.95 mpg (Imp)
13.48 L/100 km
5.73 gal (US)/100 mi
1931.9 Wh/mi
Mostly hwy and some city driving for shopping.
2014-02-07 300 mi
482.8 km
20.6 gal (US)
17.15 gal (Imp)
77.98 L
694.22 kWh
$3.37
($69.42 total for this fill)
14.56 mpg (US)
17.49 mpg (Imp)
16.15 L/100 km
6.87 gal (US)/100 mi
2314.07 Wh/mi
City driving, hydrogen removed. Throttle body, magnets and resonant wire only modifications.
2014-01-10 360 mi
579.36 km
21.2 gal (US)
17.65 gal (Imp)
80.25 L
714.44 kWh
$3.35
($71.02 total for this fill)
16.98 mpg (US)
20.4 mpg (Imp)
13.85 L/100 km
5.89 gal (US)/100 mi
1984.56 Wh/mi
Hydrogen at 1.3 lpm, turned off at idle with toggle switch. Throttle body, magnets and resonant wire also on currently. City driving to work, 7am traffic for 5 miles each direction.
2013-12-24 312 mi
502.12 km
21.7 gal (US)
18.07 gal (Imp)
82.14 L
731.29 kWh
$3.29
($71.39 total for this fill)
14.38 mpg (US)
17.27 mpg (Imp)
16.36 L/100 km
6.96 gal (US)/100 mi
2343.88 Wh/mi
Hydrogen off, throttle body, magnets and resonant wire only. Weather demands a 345 lb load in the bed for weight on snowy roads, smooth take offs come naturally in this weather.
2013-12-20 340 mi
547.18 km
20.4 gal (US)
16.99 gal (Imp)
77.22 L
687.48 kWh
$3.29
($67.12 total for this fill)
16.67 mpg (US)
20.01 mpg (Imp)
14.11 L/100 km
6 gal (US)/100 mi
2022 Wh/mi
Hydrogen on, snowy roads, 345 lb load for traction, lots of stop and go traffic with Christmas shopping.
2013-12-10 300 mi
482.8 km
20.6 gal (US)
17.15 gal (Imp)
77.98 L
694.22 kWh
$3.34
($68.8 total for this fill)
14.56 mpg (US)
17.49 mpg (Imp)
16.15 L/100 km
6.87 gal (US)/100 mi
2314.07 Wh/mi
Hydrogen off, throttle body modification. Snowy roads, 345 lb load for traction. City driving during finals week at local college. Truck passed over 200k miles.

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