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Fuel log graph
Efficiency log for: Max - 1998 Nissan Maxima SE
  • Lifetime Fuel Economy: 24.5 mpg (US), 9.6 L/100 km, 29.4 mpg (Imp)
  • 90-day Fuel Economy: 26.9 mpg (US), 8.7 L/100 km, 32.3 mpg (Imp)
  • 3-tank Fuel Economy: 26.9 mpg (US), 8.7 L/100 km, 32.3 mpg (Imp)
  • EPA Combined Rating / % over rating: 21 mpg (US) / 28% (based on 90-day fuel economy)
  • Total fills: 37
  • Average cost per gal/L: $2.94 per gal (US); $0.00 per L (price data entered for 37 fill/s)
  • Average cost per fill: $46.01
  • Average distance cost: $0.12 per mi. / $0.07 per km
  • Total fuel used: 579.12 gal (US), 2192.2 L
  • Total distance traveled: 14169.5 mi. / 22803.6 km
  • Total cost: $1,702.26
  • Total fuel saved vs. EPA: 95.6 gal. (US) / 361.9 L
  • Total saved: $281.06 (based on avg. cost per gal./L)
  • Average tank distance: 383 mi. / 616.3 km
Fill date Distance Fill amount Price Fuel Economy Details
2012-04-13 550 mi
885.14 km
21.3 gal (US)
17.74 gal (Imp)
80.63 L
717.81 kWh
$4
($85.2 total for this fill)
25.82 mpg (US)
31 mpg (Imp)
9.11 L/100 km
3.87 gal (US)/100 mi
1305.11 Wh/mi
2012-04-04 385.7 mi
620.72 km
12.194 gal (US)
10.15 gal (Imp)
46.16 L
410.94 kWh
$4.019
($49.01 total for this fill)
31.63 mpg (US)
38 mpg (Imp)
7.44 L/100 km
3.16 gal (US)/100 mi
1065.44 Wh/mi
tried our darndest to get good mileage this tank. Added 89 octane
2012-03-27 277 mi
445.79 km
11.6 gal (US)
9.66 gal (Imp)
43.91 L
390.92 kWh
$3.95
($45.82 total for this fill)
23.88 mpg (US)
28.67 mpg (Imp)
9.85 L/100 km
4.19 gal (US)/100 mi
1411.26 Wh/mi
first logged entry since recycled engine with fewer miles was put in.
2011-07-08 288.4 mi
464.13 km
14.3 gal (US)
11.91 gal (Imp)
54.13 L
481.91 kWh
$3.7
($52.91 total for this fill)
20.17 mpg (US)
24.21 mpg (Imp)
11.66 L/100 km
4.96 gal (US)/100 mi
1670.98 Wh/mi
poor car has been running pretty roough lately, just waiting for the engine to finally give it up.
2011-06-19 269.6 mi
433.88 km
12.17 gal (US)
10.13 gal (Imp)
46.07 L
410.13 kWh
$3.77
($45.88 total for this fill)
22.15 mpg (US)
26.61 mpg (Imp)
10.62 L/100 km
4.51 gal (US)/100 mi
1521.25 Wh/mi
2011-06-10 305.3 mi
491.33 km
14.4 gal (US)
11.99 gal (Imp)
54.51 L
485.28 kWh
$3.73
($53.71 total for this fill)
21.2 mpg (US)
25.46 mpg (Imp)
11.09 L/100 km
4.72 gal (US)/100 mi
1589.52 Wh/mi
the car's been running rough, think it has a cracked piston
2011-02-21 270 mi
434.52 km
10.22 gal (US)
8.51 gal (Imp)
38.69 L
344.41 kWh
$3.129
($31.98 total for this fill)
26.42 mpg (US)
31.73 mpg (Imp)
8.9 L/100 km
3.79 gal (US)/100 mi
1275.59 Wh/mi
2011-02-20 332.9 mi
535.75 km
12.12 gal (US)
10.09 gal (Imp)
45.88 L
408.44 kWh
$3.349
($40.59 total for this fill)
27.47 mpg (US)
32.99 mpg (Imp)
8.56 L/100 km
3.64 gal (US)/100 mi
1226.91 Wh/mi
2011-02-18 194.7 mi
313.34 km
6.646 gal (US)
5.53 gal (Imp)
25.16 L
223.97 kWh
$2.99
($19.87 total for this fill)
29.3 mpg (US)
35.21 mpg (Imp)
8.03 L/100 km
3.41 gal (US)/100 mi
1150.33 Wh/mi
2010-12-24 342.9 mi
551.84 km
14.9 gal (US)
12.41 gal (Imp)
56.4 L
502.13 kWh
$3.11
($46.34 total for this fill)
23.01 mpg (US)
27.63 mpg (Imp)
10.22 L/100 km
4.35 gal (US)/100 mi
1464.36 Wh/mi
the winter has spelled disaster for mileage on our favorite chariot. And having to buy premium doesn't help any either.
2010-11-19 363.1 mi
584.35 km
15.1 gal (US)
12.57 gal (Imp)
57.16 L
508.87 kWh
$3.07
($46.36 total for this fill)
24.05 mpg (US)
28.89 mpg (Imp)
9.78 L/100 km
4.16 gal (US)/100 mi
1401.46 Wh/mi
still running the 93 octane, but now the ole girl is acting a bit out of tune.
2010-11-07 358.8 mi
577.43 km
14.3 gal (US)
11.91 gal (Imp)
54.13 L
481.91 kWh
$3.03
($43.33 total for this fill)
25.09 mpg (US)
30.13 mpg (Imp)
9.37 L/100 km
3.99 gal (US)/100 mi
1343.12 Wh/mi
93 octane to fight bad knocking
2010-10-28 371 mi
597.07 km
15.3 gal (US)
12.74 gal (Imp)
57.92 L
515.61 kWh
$2.99
($45.75 total for this fill)
24.25 mpg (US)
29.12 mpg (Imp)
9.7 L/100 km
4.12 gal (US)/100 mi
1389.78 Wh/mi
this tank was mostly all with 91 octane
2010-10-14 317 mi
510.16 km
12.9 gal (US)
10.74 gal (Imp)
48.83 L
434.73 kWh
$2.729
($35.2 total for this fill)
24.57 mpg (US)
29.52 mpg (Imp)
9.57 L/100 km
4.07 gal (US)/100 mi
1371.39 Wh/mi
89 octane this time

this tank was 87 octane
2010-09-30 376 mi
605.11 km
14.6 gal (US)
12.16 gal (Imp)
55.27 L
492.02 kWh
$2.79
($40.73 total for this fill)
25.75 mpg (US)
30.92 mpg (Imp)
9.13 L/100 km
3.88 gal (US)/100 mi
1308.56 Wh/mi
added 89 octane to this tank
2010-09-19 385.7 mi
620.72 km
15.6 gal (US)
12.99 gal (Imp)
59.05 L
525.72 kWh
$2.619
($40.86 total for this fill)
24.72 mpg (US)
29.69 mpg (Imp)
9.51 L/100 km
4.04 gal (US)/100 mi
1363.03 Wh/mi
we were doing pretty well, til I had to go somewhere in a big hurry and I hauled a 1/2 ton BIG van about 5 miles with this girl.
2010-09-11 482.7 mi
776.83 km
18.9 gal (US)
15.74 gal (Imp)
71.54 L
636.93 kWh
$2.59
($48.95 total for this fill)
25.54 mpg (US)
30.67 mpg (Imp)
9.21 L/100 km
3.92 gal (US)/100 mi
1319.52 Wh/mi
my wife forgot to reset the tripometer, but remembered to reset the scanguage. So I refilled, added the gas she added to what I added, to get this entry
2010-08-27 302 mi
486.02 km
12 gal (US)
9.99 gal (Imp)
45.42 L
404.4 kWh
$2.87
($34.44 total for this fill)
25.17 mpg (US)
30.23 mpg (Imp)
9.35 L/100 km
3.97 gal (US)/100 mi
1339.07 Wh/mi
put 89 in 1/2 tank of 93
2010-08-20 311.6 mi
501.47 km
13.8 gal (US)
11.49 gal (Imp)
52.24 L
465.06 kWh
$2.899
($40.01 total for this fill)
22.58 mpg (US)
27.12 mpg (Imp)
10.42 L/100 km
4.43 gal (US)/100 mi
1492.49 Wh/mi
first full tank with 5w-20 and magnets on fuel line
2010-08-13 311.6 mi
501.47 km
14 gal (US)
11.66 gal (Imp)
53 L
471.8 kWh
$2.619
($36.67 total for this fill)
22.26 mpg (US)
26.72 mpg (Imp)
10.57 L/100 km
4.49 gal (US)/100 mi
1514.12 Wh/mi
2010-08-02 352.6 mi
567.45 km
15.4 gal (US)
12.82 gal (Imp)
58.3 L
518.98 kWh
$2.619
($40.33 total for this fill)
22.9 mpg (US)
27.5 mpg (Imp)
10.27 L/100 km
4.37 gal (US)/100 mi
1471.87 Wh/mi
2010-07-26 305.6 mi
491.82 km
11.73 gal (US)
9.77 gal (Imp)
44.4 L
395.3 kWh
$2.559
($30.02 total for this fill)
26.05 mpg (US)
31.28 mpg (Imp)
9.03 L/100 km
3.84 gal (US)/100 mi
1293.52 Wh/mi
trip to little rock
2010-07-22 438 mi
704.89 km
17.2 gal (US)
14.32 gal (Imp)
65.11 L
579.64 kWh
$2.559
($44.01 total for this fill)
25.47 mpg (US)
30.59 mpg (Imp)
9.24 L/100 km
3.93 gal (US)/100 mi
1323.38 Wh/mi
changed fuel pump and added pressure regulator
2010-07-10 358.9 mi
577.59 km
15.5 gal (US)
12.91 gal (Imp)
58.67 L
522.35 kWh
$2.899
($44.93 total for this fill)
23.15 mpg (US)
27.8 mpg (Imp)
10.16 L/100 km
4.32 gal (US)/100 mi
1455.42 Wh/mi
just adjusted the TPS so that 0 throttle position was accurate--0 TP was allowed even when opening the throttle a bit, which seemed to mess with the computer a bit, hoping the fuel mileage goes back up again.
2010-06-26 319.7 mi
514.51 km
13.1 gal (US)
10.91 gal (Imp)
49.59 L
441.47 kWh
$2.749
($36.01 total for this fill)
24.4 mpg (US)
29.3 mpg (Imp)
9.64 L/100 km
4.1 gal (US)/100 mi
1380.89 Wh/mi
Believe I had water in the tank, added some isopropyl and canola oil to end of tank to clean it up
2010-06-18 1567 mi
2521.84 km
69.46 gal (US)
57.84 gal (Imp)
262.93 L
2340.8 kWh
$2.769
($192.33 total for this fill)
22.56 mpg (US)
27.09 mpg (Imp)
10.43 L/100 km
4.43 gal (US)/100 mi
1493.81 Wh/mi
brother took trip from missouri to chicago to iowa to missouri
2010-06-18 371.6 mi
598.03 km
16.38 gal (US)
13.64 gal (Imp)
62.01 L
552.01 kWh
$2.689
($44.05 total for this fill)
22.69 mpg (US)
27.24 mpg (Imp)
10.37 L/100 km
4.41 gal (US)/100 mi
1485.5 Wh/mi
lots of ac use
2010-06-12 301.6 mi
485.38 km
13.39 gal (US)
11.15 gal (Imp)
50.69 L
451.24 kWh
$2.899
($38.82 total for this fill)
22.52 mpg (US)
27.05 mpg (Imp)
10.44 L/100 km
4.44 gal (US)/100 mi
1496.15 Wh/mi
2010-06-04 302.9 mi
487.47 km
13.3 gal (US)
11.08 gal (Imp)
50.35 L
448.21 kWh
$2.899
($38.56 total for this fill)
22.77 mpg (US)
27.34 mpg (Imp)
10.33 L/100 km
4.39 gal (US)/100 mi
1479.73 Wh/mi
Had to get the e85 diluted bad, the car hated it, it runs better now with some real gas in it. Woulda thought a higer compression engine would have liked e85
2010-06-04 394.5 mi
634.89 km
13.03 gal (US)
10.85 gal (Imp)
49.32 L
439.11 kWh
$1.919
($25 total for this fill)
30.28 mpg (US)
36.36 mpg (Imp)
7.77 L/100 km
3.3 gal (US)/100 mi
1113.08 Wh/mi
refueled w e85 with bad results
2010-06-03 394 mi
634.08 km
14.35 gal (US)
11.95 gal (Imp)
54.32 L
483.6 kWh
$2.439
($35 total for this fill)
27.46 mpg (US)
32.97 mpg (Imp)
8.57 L/100 km
3.64 gal (US)/100 mi
1227.41 Wh/mi
why is midgrade dirt cheap in Iowa????
2010-06-03 398.6 mi
641.48 km
14.98 gal (US)
12.47 gal (Imp)
56.71 L
504.83 kWh
$2.479
($37.14 total for this fill)
26.61 mpg (US)
31.96 mpg (Imp)
8.84 L/100 km
3.76 gal (US)/100 mi
1266.51 Wh/mi
first full tank with SG
2010-05-27 449 mi
722.6 km
18.08 gal (US)
15.05 gal (Imp)
68.44 L
609.3 kWh
$2.719
($49.16 total for this fill)
24.83 mpg (US)
29.83 mpg (Imp)
9.47 L/100 km
4.03 gal (US)/100 mi
1357.02 Wh/mi
put in 87 for this tank, ran 89 last tank
now have SG, hope to see improvement.
2010-05-18 339.6 mi
546.53 km
15.45 gal (US)
12.86 gal (Imp)
58.48 L
520.67 kWh
$2.93
($45.27 total for this fill)
21.98 mpg (US)
26.41 mpg (Imp)
10.7 L/100 km
4.55 gal (US)/100 mi
1533.19 Wh/mi
had roughly 92 octane in tank. I think it killed my mileage. Refilled with 89, hoping to find happy medium between preventing octane knock and getting good mileage.
2010-05-12 353.2 mi
568.42 km
13.67 gal (US)
11.38 gal (Imp)
51.75 L
460.68 kWh
$3.05
($41.69 total for this fill)
25.84 mpg (US)
31.04 mpg (Imp)
9.1 L/100 km
3.87 gal (US)/100 mi
1304.3 Wh/mi
used 4.000 gallons 89 octane + 9.686 gallons 93 octane, had 91 octane in tank, had knock sensor in for whole tank, just put in TPS
2010-04-23 367.6 mi
591.59 km
13.05 gal (US)
10.87 gal (Imp)
49.4 L
439.79 kWh
$2.719
($35.48 total for this fill)
28.17 mpg (US)
33.82 mpg (Imp)
8.35 L/100 km
3.55 gal (US)/100 mi
1196.38 Wh/mi
lots of highway miles, tried for economy. filled up at exxon
2010-04-15 359.1 mi
577.92 km
14.7 gal (US)
12.24 gal (Imp)
55.65 L
495.39 kWh
$2.779
($40.85 total for this fill)
24.43 mpg (US)
29.34 mpg (Imp)
9.63 L/100 km
4.09 gal (US)/100 mi
1379.53 Wh/mi
Gave her shell 87 octane.

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


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