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Fuel log graph
Efficiency log for: CRex - 1987 Honda CRX Si r
  • Lifetime Fuel Economy: 35.6 mpg (US), 6.6 L/100 km, 42.8 mpg (Imp)
  • 90-day Fuel Economy: 34 mpg (US), 6.9 L/100 km, 40.8 mpg (Imp)
  • 3-tank Fuel Economy: 35.7 mpg (US), 6.6 L/100 km, 42.9 mpg (Imp)
  • EPA Combined Rating / % over rating: 27 mpg (US) / 25.9% (based on 90-day fuel economy)
  • Total fills: 54
  • Average cost per gal/L: $3.18 per gal (US); $0.00 per L (price data entered for 54 fill/s)
  • Average cost per fill: $31.62
  • Average distance cost: $0.09 per mi. / $0.06 per km
  • Total fuel used: 537.3 gal (US), 2033.9 L
  • Total distance traveled: 19147.5 mi. / 30814.9 km
  • Total cost: $1,707.27
  • Total fuel saved vs. EPA: 171.9 gal. (US) / 650.7 L
  • Total saved: $546.64 (based on avg. cost per gal./L)
  • Average tank distance: 354.6 mi. / 570.6 km
Fill date Distance Fill amount Price Fuel Economy Details
2013-03-24 339 mi
545.57 km
9.972 gal (US)
8.3 gal (Imp)
37.75 L
336.06 kWh
$3.409
($33.99 total for this fill)
34 mpg (US)
40.84 mpg (Imp)
6.92 L/100 km
2.94 gal (US)/100 mi
991.33 Wh/mi
first full tank with larger exhaust(clutch still slipping)...
2012-09-12 386 mi
621.21 km
10.54 gal (US)
8.78 gal (Imp)
39.9 L
355.2 kWh
$3.76
($39.63 total for this fill)
36.62 mpg (US)
43.96 mpg (Imp)
6.42 L/100 km
2.73 gal (US)/100 mi
920.21 Wh/mi
2012-08-24 376 mi
605.11 km
10.31 gal (US)
8.59 gal (Imp)
39.03 L
347.45 kWh
$3.5
($36.09 total for this fill)
36.47 mpg (US)
43.77 mpg (Imp)
6.45 L/100 km
2.74 gal (US)/100 mi
924.07 Wh/mi
2012-08-14 388 mi
624.43 km
10.294 gal (US)
8.57 gal (Imp)
38.97 L
346.91 kWh
$3.56
($36.65 total for this fill)
37.69 mpg (US)
45.27 mpg (Imp)
6.24 L/100 km
2.65 gal (US)/100 mi
894.1 Wh/mi
Heated fuel rail removed at about the half tank mark.... weather in the 100's.....
2012-08-06 352 mi
566.49 km
9.994 gal (US)
8.32 gal (Imp)
37.83 L
336.8 kWh
$3.5
($34.98 total for this fill)
35.22 mpg (US)
42.31 mpg (Imp)
6.68 L/100 km
2.84 gal (US)/100 mi
956.82 Wh/mi
2012-08-06 352 mi
566.49 km
9.994 gal (US)
8.32 gal (Imp)
37.83 L
336.8 kWh
$3.5
($34.98 total for this fill)
35.22 mpg (US)
42.31 mpg (Imp)
6.68 L/100 km
2.84 gal (US)/100 mi
956.82 Wh/mi
2012-07-14 388 mi
624.43 km
10.294 gal (US)
8.57 gal (Imp)
38.97 L
346.91 kWh
$3.56
($36.65 total for this fill)
37.69 mpg (US)
45.27 mpg (Imp)
6.24 L/100 km
2.65 gal (US)/100 mi
894.1 Wh/mi
2012-04-12 362 mi
582.58 km
10.422 gal (US)
8.68 gal (Imp)
39.45 L
351.22 kWh
$3.75
($39.08 total for this fill)
34.73 mpg (US)
41.71 mpg (Imp)
6.77 L/100 km
2.88 gal (US)/100 mi
970.22 Wh/mi
2012-04-04 347 mi
558.44 km
10.477 gal (US)
8.72 gal (Imp)
39.66 L
353.07 kWh
$3.78
($39.6 total for this fill)
33.12 mpg (US)
39.79 mpg (Imp)
7.1 L/100 km
3.02 gal (US)/100 mi
1017.49 Wh/mi
2012-03-27 327 mi
526.26 km
10.073 gal (US)
8.39 gal (Imp)
38.13 L
339.46 kWh
$3.66
($36.87 total for this fill)
32.46 mpg (US)
38.97 mpg (Imp)
7.25 L/100 km
3.08 gal (US)/100 mi
1038.1 Wh/mi
2012-03-07 330 mi
531.08 km
9.916 gal (US)
8.26 gal (Imp)
37.54 L
334.17 kWh
$3.599
($35.69 total for this fill)
33.28 mpg (US)
39.95 mpg (Imp)
7.07 L/100 km
3 gal (US)/100 mi
1012.64 Wh/mi
like i stole it?????
2012-01-04 340 mi
547.18 km
10.745 gal (US)
8.95 gal (Imp)
40.67 L
362.11 kWh
$2.999
($32.22 total for this fill)
31.64 mpg (US)
37.99 mpg (Imp)
7.43 L/100 km
3.16 gal (US)/100 mi
1065.03 Wh/mi
sat a while in the garage.... sway bar work???
2011-11-03 354 mi
569.71 km
10.91 gal (US)
9.08 gal (Imp)
41.3 L
367.67 kWh
$3.46
($37.75 total for this fill)
32.45 mpg (US)
38.99 mpg (Imp)
7.25 L/100 km
3.08 gal (US)/100 mi
1038.62 Wh/mi
beginning of winter blend????
2011-10-12 369 mi
593.85 km
10.26 gal (US)
8.54 gal (Imp)
38.84 L
345.76 kWh
$3.619
($37.13 total for this fill)
35.96 mpg (US)
43.21 mpg (Imp)
6.54 L/100 km
2.78 gal (US)/100 mi
937.02 Wh/mi
next fill is non alcohol gas
2011-10-12 339 mi
545.57 km
9.7 gal (US)
8.08 gal (Imp)
36.72 L
326.89 kWh
$3.579
($34.72 total for this fill)
34.95 mpg (US)
41.96 mpg (Imp)
6.73 L/100 km
2.86 gal (US)/100 mi
964.28 Wh/mi
2011-09-28 339 mi
545.57 km
10.3 gal (US)
8.58 gal (Imp)
38.99 L
347.11 kWh
$3.76
($38.73 total for this fill)
32.91 mpg (US)
39.51 mpg (Imp)
7.15 L/100 km
3.04 gal (US)/100 mi
1023.92 Wh/mi
parked in the garage for quite a while....
2011-04-21 401 mi
645.35 km
10.6 gal (US)
8.83 gal (Imp)
40.13 L
357.22 kWh
$3.7
($39.22 total for this fill)
37.83 mpg (US)
45.41 mpg (Imp)
6.22 L/100 km
2.64 gal (US)/100 mi
890.82 Wh/mi
1st tank after timing belt changed/timing set at normal.... Also no AC belt(need to return wrong belt and reinstall). normal driving....
2011-04-07 374 mi
601.89 km
10 gal (US)
8.33 gal (Imp)
37.85 L
337 kWh
$3.5
($35 total for this fill)
37.4 mpg (US)
44.9 mpg (Imp)
6.29 L/100 km
2.67 gal (US)/100 mi
901.07 Wh/mi
oil change(synthetic blend) and fuel filter change at end of tank..... fixed brake pulling to the left....
2011-03-30 353 mi
568.1 km
9.751 gal (US)
8.12 gal (Imp)
36.91 L
328.61 kWh
$3.4
($33.15 total for this fill)
36.2 mpg (US)
43.47 mpg (Imp)
6.5 L/100 km
2.76 gal (US)/100 mi
930.91 Wh/mi
Same all.... torqued all wheel bearings at end of tank.....
2011-03-23 367 mi
590.63 km
10.28 gal (US)
8.56 gal (Imp)
38.91 L
346.44 kWh
$3.5
($35.98 total for this fill)
35.7 mpg (US)
42.87 mpg (Imp)
6.59 L/100 km
2.8 gal (US)/100 mi
943.98 Wh/mi
same all....
2011-03-16 367 mi
590.63 km
10.23 gal (US)
8.52 gal (Imp)
38.72 L
344.75 kWh
$3.36
($34.37 total for this fill)
35.87 mpg (US)
43.08 mpg (Imp)
6.56 L/100 km
2.79 gal (US)/100 mi
939.37 Wh/mi
same all.... fairly cold most days.... cold rain recent couple days...
2011-03-05 367 mi
590.63 km
10.12 gal (US)
8.43 gal (Imp)
38.31 L
341.04 kWh
$3.199
($32.37 total for this fill)
36.26 mpg (US)
43.53 mpg (Imp)
6.49 L/100 km
2.76 gal (US)/100 mi
929.26 Wh/mi
same all.... end of winter blend??? dunno
2011-02-28 358 mi
576.15 km
11.05 gal (US)
9.2 gal (Imp)
41.83 L
372.39 kWh
$3.159
($34.91 total for this fill)
32.4 mpg (US)
38.91 mpg (Imp)
7.26 L/100 km
3.09 gal (US)/100 mi
1040.2 Wh/mi
Still cold. Still heated fuel rail. Still need to fix brakes. still no efie. idle fixed at last 10% ish of tank...
2011-02-16 348 mi
560.05 km
10.58 gal (US)
8.81 gal (Imp)
40.05 L
356.55 kWh
$3
($31.74 total for this fill)
32.89 mpg (US)
39.5 mpg (Imp)
7.15 L/100 km
3.04 gal (US)/100 mi
1024.57 Wh/mi
no efie.... fuel rail still heated by radiator hose.... cold weather still... still pulling to the left....
2011-02-12 345 mi
555.22 km
10.33 gal (US)
8.6 gal (Imp)
39.1 L
348.12 kWh
$2.939
($30.36 total for this fill)
33.4 mpg (US)
40.12 mpg (Imp)
7.04 L/100 km
2.99 gal (US)/100 mi
1009.04 Wh/mi
Heated fuel rail. Normal temp while running- 3 degrees C. Heated fuel rail rough temp while running- 16 degrees C. Partial cleaning of throttle body- need a real cleaning in the future... EFIE same. Weather starting to warm a little....
2011-02-08 355 mi
571.32 km
10.34 gal (US)
8.61 gal (Imp)
39.14 L
348.46 kWh
$3
($31.02 total for this fill)
34.33 mpg (US)
41.23 mpg (Imp)
6.85 L/100 km
2.91 gal (US)/100 mi
981.58 Wh/mi
heated fuel rail for last 1/4 tank. car slight pulling to the left- need to check brake work, etc... Idle is still too high, need to fix.... efie same. weather in the 30's and 40's....
2011-02-02 318 mi
511.77 km
9.327 gal (US)
7.77 gal (Imp)
35.31 L
314.32 kWh
$2.9
($27.05 total for this fill)
34.09 mpg (US)
40.93 mpg (Imp)
6.9 L/100 km
2.93 gal (US)/100 mi
988.43 Wh/mi
same everything. Found two very low tires- refilled all to 50 psi. still very cold weather....
2011-01-28 387 mi
622.82 km
10.48 gal (US)
8.73 gal (Imp)
39.67 L
353.18 kWh
$2.939
($30.8 total for this fill)
36.93 mpg (US)
44.33 mpg (Imp)
6.37 L/100 km
2.71 gal (US)/100 mi
912.61 Wh/mi
same driving. front brake pads changed at the beginning of tank. efie same. nothing else new.... desulphator installed again....
2011-01-24 363 mi
584.19 km
10.69 gal (US)
8.9 gal (Imp)
40.47 L
360.25 kWh
$2.86
($30.57 total for this fill)
33.96 mpg (US)
40.79 mpg (Imp)
6.93 L/100 km
2.94 gal (US)/100 mi
992.42 Wh/mi
same everything.... possible errors with efie(both led's on continuously) in severe cold weather.... changed front brake pads at end of tank.... no hydrogen
2011-01-19 353 mi
568.1 km
10.32 gal (US)
8.59 gal (Imp)
39.07 L
347.78 kWh
$2.799
($28.89 total for this fill)
34.21 mpg (US)
41.09 mpg (Imp)
6.88 L/100 km
2.92 gal (US)/100 mi
985.21 Wh/mi
vacuum leak fixed previous to fill up. H2 off. Same efie. no new mods....
2011-01-14 333 mi
535.91 km
10.15 gal (US)
8.45 gal (Imp)
38.42 L
342.06 kWh
$2.799
($28.41 total for this fill)
32.81 mpg (US)
39.41 mpg (Imp)
7.17 L/100 km
3.05 gal (US)/100 mi
1027.21 Wh/mi
cold, icy, snowy.... same efie. same h2 booster. idle still higher than normal. several weeks parked in garage... bad vacuum leak(hose unplugged- not sure when it started)....
2010-12-14 332 mi
534.3 km
9.928 gal (US)
8.27 gal (Imp)
37.58 L
334.57 kWh
$2.959
($29.38 total for this fill)
33.44 mpg (US)
40.15 mpg (Imp)
7.03 L/100 km
2.99 gal (US)/100 mi
1007.74 Wh/mi
ditto....
2010-12-01 332 mi
534.3 km
9.28 gal (US)
7.73 gal (Imp)
35.13 L
312.74 kWh
$2.96
($27.47 total for this fill)
35.78 mpg (US)
42.95 mpg (Imp)
6.57 L/100 km
2.8 gal (US)/100 mi
941.99 Wh/mi
same efie, hydrogen for the entire tank- sat in garage 1-2 months... Cold weather now....
2010-10-10 370 mi
595.46 km
10.2 gal (US)
8.49 gal (Imp)
38.61 L
343.74 kWh
$2.919
($29.77 total for this fill)
36.27 mpg (US)
43.58 mpg (Imp)
6.48 L/100 km
2.76 gal (US)/100 mi
929.03 Wh/mi
efie at 250 mv. last half of tank with H2 booster. Some engine codes, definite extra draw on electrical system..... slight increase in idle speed to compensate....
2010-09-27 353 mi
568.1 km
9.615 gal (US)
8.01 gal (Imp)
36.4 L
324.03 kWh
$2.879
($27.68 total for this fill)
36.71 mpg (US)
44.07 mpg (Imp)
6.41 L/100 km
2.72 gal (US)/100 mi
917.93 Wh/mi
Parked in the garage for extended times.... EFIE still at 250 mv....
2010-08-23 396 mi
637.3 km
10.21 gal (US)
8.5 gal (Imp)
38.65 L
344.08 kWh
$2.899
($29.6 total for this fill)
38.79 mpg (US)
46.59 mpg (Imp)
6.06 L/100 km
2.58 gal (US)/100 mi
868.89 Wh/mi
nothing new done. EFIE still at 250 mv...
2010-08-12 388 mi
624.43 km
10.07 gal (US)
8.39 gal (Imp)
38.12 L
339.36 kWh
$2.839
($28.59 total for this fill)
38.53 mpg (US)
46.25 mpg (Imp)
6.1 L/100 km
2.6 gal (US)/100 mi
874.64 Wh/mi
EFIE set to 250 mv. Still getting check engine codes at warmup. Full tank of CA40g. Approximately 2 weeks parked in the garage.....
2010-07-19 408 mi
656.61 km
9.971 gal (US)
8.3 gal (Imp)
37.74 L
336.02 kWh
$2.799
($27.91 total for this fill)
40.92 mpg (US)
49.16 mpg (Imp)
5.75 L/100 km
2.44 gal (US)/100 mi
823.58 Wh/mi
Efie set to 300 mv, still getting intermittent codes on first warm up right before efie starts controlling(4-5 minutes after starting).....
2010-07-12 350 mi
563.27 km
9.335 gal (US)
7.77 gal (Imp)
35.34 L
314.59 kWh
$2.799
($26.13 total for this fill)
37.49 mpg (US)
45.05 mpg (Imp)
6.27 L/100 km
2.67 gal (US)/100 mi
898.83 Wh/mi
1st run with efie. Set to 275mv. some engine codes....
2010-07-06 411 mi
661.44 km
10 gal (US)
8.33 gal (Imp)
37.85 L
337 kWh
$2.799
($27.99 total for this fill)
41.1 mpg (US)
49.34 mpg (Imp)
5.72 L/100 km
2.43 gal (US)/100 mi
819.95 Wh/mi
no changes from last fill.... hot weather is finally here(90's most days)....
2010-06-18 309 mi
497.29 km
7.91 gal (US)
6.59 gal (Imp)
29.94 L
266.57 kWh
$2.939
($23.25 total for this fill)
39.06 mpg (US)
46.89 mpg (Imp)
6.02 L/100 km
2.56 gal (US)/100 mi
862.69 Wh/mi
vacuum gauge installed. Ignition Timing maxed..... still off a little
2010-06-10 404 mi
650.17 km
10.16 gal (US)
8.46 gal (Imp)
38.46 L
342.39 kWh
$2.99
($30.38 total for this fill)
39.76 mpg (US)
47.75 mpg (Imp)
5.92 L/100 km
2.51 gal (US)/100 mi
847.5 Wh/mi
Full Tank of ethanol-free gas. Desulfator installed at 3/4 tank and removed at end of tank.... Cleaned/Fixed IACV at 3/4 tank.....
2010-06-07 355.5 mi
572.12 km
8.72 gal (US)
7.26 gal (Imp)
33.01 L
293.86 kWh
$3.099
($27.02 total for this fill)
40.77 mpg (US)
48.97 mpg (Imp)
5.77 L/100 km
2.45 gal (US)/100 mi
826.61 Wh/mi
same driving, some idling/testing in the garage. back to 2500 as max rpm shift point. gas price is higher because filled up with non-ethanol gas.
2010-05-28 372 mi
598.68 km
9.833 gal (US)
8.19 gal (Imp)
37.22 L
331.37 kWh
$2.979
($29.29 total for this fill)
37.83 mpg (US)
45.42 mpg (Imp)
6.22 L/100 km
2.64 gal (US)/100 mi
890.78 Wh/mi
1st full tank with new tires. Much driving at 1500 rpms.... same hypermile techniques...
2010-05-21 404 mi
650.17 km
10.49 gal (US)
8.73 gal (Imp)
39.71 L
353.51 kWh
$3.059
($32.09 total for this fill)
38.51 mpg (US)
46.28 mpg (Imp)
6.11 L/100 km
2.6 gal (US)/100 mi
875.02 Wh/mi
Same hypermile techniques. New B381 tires installed at around half tank.
2010-05-13 314 mi
505.33 km
9.017 gal (US)
7.51 gal (Imp)
34.13 L
303.87 kWh
$3.1
($27.95 total for this fill)
34.82 mpg (US)
41.81 mpg (Imp)
6.75 L/100 km
2.87 gal (US)/100 mi
967.74 Wh/mi
Same driving, increased sunroof usage????
2010-05-07 352 mi
566.49 km
9.484 gal (US)
7.9 gal (Imp)
35.9 L
319.61 kWh
$3.099
($29.39 total for this fill)
37.12 mpg (US)
44.56 mpg (Imp)
6.34 L/100 km
2.69 gal (US)/100 mi
907.98 Wh/mi
same hypermiling techniques, nothing really new....... Some cold/windy weather(a lot of high 30's rain and very windy days....)
2010-05-03 340 mi
547.18 km
9.83 gal (US)
8.19 gal (Imp)
37.21 L
331.27 kWh
$3.04
($29.88 total for this fill)
34.59 mpg (US)
41.51 mpg (Imp)
6.8 L/100 km
2.89 gal (US)/100 mi
974.32 Wh/mi
No hypermiling at all. Much idling/testing in garage.....
2010-04-15 365 mi
587.41 km
9.8 gal (US)
8.16 gal (Imp)
37.1 L
330.26 kWh
$2.99
($29.3 total for this fill)
37.24 mpg (US)
44.73 mpg (Imp)
6.32 L/100 km
2.68 gal (US)/100 mi
904.82 Wh/mi
First "official" fillup. Correct mileage, correct fuel used, and correct date..... CA40g added to fuel in addition to same ecomodding techniques as before....
2010-03-25 185 mi
297.73 km
5 gal (US)
4.16 gal (Imp)
18.93 L
168.5 kWh
$2.92
($14.6 total for this fill)
37 mpg (US)
44.47 mpg (Imp)
6.36 L/100 km
2.7 gal (US)/100 mi
910.81 Wh/mi
tracked mpg only- no details. date, miles and gals are estimated.... slight ecomod techniques- (rpm never above 2,5000) and engine on coasting when possible.... Spark Plug mod was done(drilled hole in ground). But only done for half a tank becuase of fear. spark plugs look good will install again later for better test....
2010-03-18 310 mi
498.9 km
10 gal (US)
8.33 gal (Imp)
37.85 L
337 kWh
$2.86
($28.6 total for this fill)
31 mpg (US)
37.21 mpg (Imp)
7.59 L/100 km
3.23 gal (US)/100 mi
1087.1 Wh/mi
tracked mpg only- no details. date, miles and gals are estimated.... drove normal(maybe hot rodded a little)....
2010-03-11 360 mi
579.36 km
10 gal (US)
8.33 gal (Imp)
37.85 L
337 kWh
$2.81
($28.1 total for this fill)
36 mpg (US)
43.22 mpg (Imp)
6.53 L/100 km
2.78 gal (US)/100 mi
936.11 Wh/mi
tracked mpg only- no details. date, miles and gals are estimated.... slight ecomodding techniques(rpms never above 2,500 for shifting- engine on coasting when possible).....
2010-03-04 340 mi
547.18 km
10 gal (US)
8.33 gal (Imp)
37.85 L
337 kWh
$2.73
($27.3 total for this fill)
34 mpg (US)
40.82 mpg (Imp)
6.92 L/100 km
2.94 gal (US)/100 mi
991.18 Wh/mi
tracked mpg only- no details. date, miles and gals are estimated.... after tuneup stuff
2010-02-25 320 mi
514.99 km
10 gal (US)
8.33 gal (Imp)
37.85 L
337 kWh
$2.7
($27 total for this fill)
32 mpg (US)
38.42 mpg (Imp)
7.35 L/100 km
3.13 gal (US)/100 mi
1053.13 Wh/mi
first tank- with tuneup stuff. no ecomodding... tracked mpg- no details. date, miles and gals are estimated....

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


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