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Fuel log graph
Efficiency log for: 2010 Cobalt - 2010 Chevy Cobalt LT
  • Lifetime Fuel Economy: 33.1 mpg (US), 7.1 L/100 km, 39.8 mpg (Imp)
  • 90-day Fuel Economy: 37.1 mpg (US), 6.3 L/100 km, 44.5 mpg (Imp)
  • 3-tank Fuel Economy: 39.3 mpg (US), 6 L/100 km, 47.2 mpg (Imp)
  • EPA Combined Rating / % over rating: 27 mpg (US) / 37.2% (based on 90-day fuel economy)
  • Total fills: 46
  • Average cost per gal/L: $2.38 per gal (US); $0.00 per L (price data entered for 46 fill/s)
  • Average cost per fill: $19.67
  • Average distance cost: $0.07 per mi. / $0.04 per km
  • Total fuel used: 380.5 gal (US), 1440.3 L
  • Total distance traveled: 12604.7 mi. / 20285.3 km
  • Total cost: $905.01
  • Total fuel saved vs. EPA: 86.3 gal. (US) / 326.7 L
  • Total saved: $205.39 (based on avg. cost per gal./L)
  • Average tank distance: 274 mi. / 441 km
Fill date Distance Fill amount Price Fuel Economy Details
2019-07-02 385.8 mi
620.88 km
9.623 gal (US)
8.01 gal (Imp)
36.43 L
324.3 kWh
$2.729
($26.26 total for this fill)
40.09 mpg (US)
48.16 mpg (Imp)
5.87 L/100 km
2.49 gal (US)/100 mi
840.59 Wh/mi
E0, 40.3 indicated, 105,391 OD, did use AC some this tank, new PBR. 39.3 3-tank
2019-06-27 377.5 mi
607.53 km
9.647 gal (US)
8.03 gal (Imp)
36.52 L
325.1 kWh
$2.799
($27 total for this fill)
39.13 mpg (US)
47.01 mpg (Imp)
6.01 L/100 km
2.56 gal (US)/100 mi
861.19 Wh/mi
Didn't record last fill unknown miles but it was from this same pump with E0 so about E5 in the tank. This fill E0. 40.5 indicated
2019-06-10 213.1 mi
342.95 km
5.556 gal (US)
4.63 gal (Imp)
21.03 L
187.24 kWh
$2.519
($14 total for this fill)
38.35 mpg (US)
46.03 mpg (Imp)
6.13 L/100 km
2.61 gal (US)/100 mi
878.65 Wh/mi
E10, 37.8 indicated, 36.8 3 tank
2019-06-07 381 mi
613.16 km
10.356 gal (US)
8.62 gal (Imp)
39.2 L
349 kWh
$2.559
($26.5 total for this fill)
36.79 mpg (US)
44.2 mpg (Imp)
6.39 L/100 km
2.72 gal (US)/100 mi
916.01 Wh/mi
e15, 38.0 indicated
2019-06-01 405.7 mi
652.91 km
11.225 gal (US)
9.35 gal (Imp)
42.49 L
378.28 kWh
$2.539
($28.5 total for this fill)
36.14 mpg (US)
43.39 mpg (Imp)
6.51 L/100 km
2.77 gal (US)/100 mi
932.41 Wh/mi
E0 mileage, E15 fill, 36.6 indicated, After 2 days 41 indicated then Cameron drove it. Changed oil and filter 103,300. Swapped coils with other cobalt to see if would fix it's misfire, no change. OEM coils were Denso as well.
2019-05-10 287.2 mi
462.2 km
8.931 gal (US)
7.44 gal (Imp)
33.81 L
300.97 kWh
$2.519
($22.5 total for this fill)
32.16 mpg (US)
38.6 mpg (Imp)
7.32 L/100 km
3.11 gal (US)/100 mi
1047.95 Wh/mi
e15, 32.5 3-tank
2019-04-02 373.6 mi
601.25 km
11.534 gal (US)
9.6 gal (Imp)
43.66 L
388.7 kWh
$2.649
($30.55 total for this fill)
32.39 mpg (US)
38.92 mpg (Imp)
7.26 L/100 km
3.09 gal (US)/100 mi
1040.42 Wh/mi
31.6 indicated on about E50
2019-03-27 268.7 mi
432.43 km
8.098 gal (US)
6.74 gal (Imp)
30.65 L
272.9 kWh
$2.099
($17 total for this fill)
33.18 mpg (US)
39.87 mpg (Imp)
7.09 L/100 km
3.01 gal (US)/100 mi
1015.63 Wh/mi
E85 fill, 35.5 indicated, E10 $2.52
2019-03-21 332.1 mi
534.46 km
9.141 gal (US)
7.61 gal (Imp)
34.6 L
308.05 kWh
$2.569
($23.48 total for this fill)
36.33 mpg (US)
43.64 mpg (Imp)
6.47 L/100 km
2.75 gal (US)/100 mi
927.58 Wh/mi
E10, 37.1 indicated, 34.9 3-tank on E0, $0.076/mile
2019-03-18 373.9 mi
601.73 km
11.376 gal (US)
9.47 gal (Imp)
43.06 L
383.37 kWh
$2.699
($30.7 total for this fill)
32.87 mpg (US)
39.48 mpg (Imp)
7.16 L/100 km
3.04 gal (US)/100 mi
1025.33 Wh/mi
E0, 35.8 indicated. E10 $0.30 cheaper. 33.7 3-tank
2019-03-13 318.9 mi
513.22 km
8.852 gal (US)
7.37 gal (Imp)
33.51 L
298.31 kWh
$2.599
($23.01 total for this fill)
36.03 mpg (US)
43.27 mpg (Imp)
6.53 L/100 km
2.78 gal (US)/100 mi
935.43 Wh/mi
E0, 40-50 dF
2019-03-10 366.7 mi
590.15 km
11.254 gal (US)
9.37 gal (Imp)
42.6 L
379.26 kWh
$2.399
($27 total for this fill)
32.58 mpg (US)
39.14 mpg (Imp)
7.22 L/100 km
3.07 gal (US)/100 mi
1034.25 Wh/mi
e10, temps above freezing
2019-03-07 358.5 mi
576.95 km
11.705 gal (US)
9.75 gal (Imp)
44.31 L
394.46 kWh
$2.349
($27.5 total for this fill)
30.63 mpg (US)
36.77 mpg (Imp)
7.68 L/100 km
3.26 gal (US)/100 mi
1100.31 Wh/mi
e15, 0-10 dF
2019-02-19 281.2 mi
452.55 km
8.639 gal (US)
7.19 gal (Imp)
32.7 L
291.13 kWh
$2.199
($19 total for this fill)
32.55 mpg (US)
39.11 mpg (Imp)
7.23 L/100 km
3.07 gal (US)/100 mi
1035.31 Wh/mi
e15
2019-02-17 369.8 mi
595.14 km
11.909 gal (US)
9.92 gal (Imp)
45.08 L
401.33 kWh
$2.099
($25 total for this fill)
31.05 mpg (US)
37.28 mpg (Imp)
7.57 L/100 km
3.22 gal (US)/100 mi
1085.26 Wh/mi
e15
2019-02-07 355.9 mi
572.77 km
10.578 gal (US)
8.81 gal (Imp)
40.04 L
356.48 kWh
$2.009
($21.25 total for this fill)
33.65 mpg (US)
40.4 mpg (Imp)
6.99 L/100 km
2.97 gal (US)/100 mi
1001.63 Wh/mi
e15
2019-02-05 192.7 mi
310.12 km
5.917 gal (US)
4.93 gal (Imp)
22.4 L
199.4 kWh
$1.859
($11 total for this fill)
32.57 mpg (US)
39.09 mpg (Imp)
7.22 L/100 km
3.07 gal (US)/100 mi
1034.77 Wh/mi
E88, 30.8 3-tank, $0.06/mile
2019-02-01 259.9 mi
418.27 km
9.035 gal (US)
7.52 gal (Imp)
34.2 L
304.48 kWh
$1.859
($16.8 total for this fill)
28.77 mpg (US)
34.56 mpg (Imp)
8.18 L/100 km
3.48 gal (US)/100 mi
1171.53 Wh/mi
e15, peaked at +10 today when refilling, negatives for almost all of tank
2019-01-30 271.2 mi
436.45 km
8.552 gal (US)
7.12 gal (Imp)
32.37 L
288.2 kWh
$1.959
($16.75 total for this fill)
31.71 mpg (US)
38.09 mpg (Imp)
7.42 L/100 km
3.15 gal (US)/100 mi
1062.68 Wh/mi
e15, -22f currently
2019-01-28 279.3 mi
449.49 km
8.813 gal (US)
7.34 gal (Imp)
33.36 L
297 kWh
$2.099
($18.5 total for this fill)
31.69 mpg (US)
38.05 mpg (Imp)
7.42 L/100 km
3.16 gal (US)/100 mi
1063.37 Wh/mi
E10, moved XFE 3 almost new WRG4 and a brand new one to this car. Car has almost 97,000 miles. The 3 tires have 10,000 miles on them.
2018-11-08 330.6 mi
532.05 km
9.67 gal (US)
8.05 gal (Imp)
36.6 L
325.88 kWh
$2.409
($23.3 total for this fill)
34.19 mpg (US)
41.07 mpg (Imp)
6.88 L/100 km
2.92 gal (US)/100 mi
985.72 Wh/mi
e15, 35.8 indicated
2018-11-05 359.8 mi
579.04 km
10.325 gal (US)
8.6 gal (Imp)
39.08 L
347.95 kWh
$2.589
($26.73 total for this fill)
34.85 mpg (US)
41.84 mpg (Imp)
6.75 L/100 km
2.87 gal (US)/100 mi
967.07 Wh/mi
E10, 35.3 indicated, 96,097
2018-11-01 314.9 mi
506.78 km
9.881 gal (US)
8.23 gal (Imp)
37.4 L
332.99 kWh
$2.469
($24.4 total for this fill)
31.87 mpg (US)
38.26 mpg (Imp)
7.38 L/100 km
3.14 gal (US)/100 mi
1057.45 Wh/mi
e15, 32.2 indicated
2018-10-29 222.6 mi
358.24 km
6.623 gal (US)
5.51 gal (Imp)
25.07 L
223.2 kWh
$2.189
($14.5 total for this fill)
33.61 mpg (US)
40.4 mpg (Imp)
7 L/100 km
2.98 gal (US)/100 mi
1002.7 Wh/mi
e85, 34.0 indicated, about E50 in tank, new plugs a couple day ago. NJK iridium's
2018-10-19 455.1 mi
732.41 km
12.202 gal (US)
10.16 gal (Imp)
46.19 L
411.21 kWh
$2.569
($31.35 total for this fill)
37.3 mpg (US)
44.79 mpg (Imp)
6.31 L/100 km
2.68 gal (US)/100 mi
903.56 Wh/mi
E15, new air filter installed, tires to 38 psi last week, changing oil tomorrow 95,500. Will be using this car and the XFE for commuting.
2018-03-17 27 mi
43.45 km
1 gal (US)
0.83 gal (Imp)
3.79 L
33.7 kWh
$2.5
($2.5 total for this fill)
27 mpg (US)
32.53 mpg (Imp)
8.72 L/100 km
3.7 gal (US)/100 mi
1248.15 Wh/mi
Fake fill changed oil 87000

53,700 miles on older wrg3
26,700 miles on newer wrg3
2017-04-15 28 mi
45.06 km
1 gal (US)
0.83 gal (Imp)
3.79 L
33.7 kWh
$2.35
($2.35 total for this fill)
28 mpg (US)
33.73 mpg (Imp)
8.41 L/100 km
3.57 gal (US)/100 mi
1203.57 Wh/mi
fake fill, 68,263 changed oil & filter, rotated tires, Newer G3 to rear reading 4-6 on Nokian tread wear system, 3 older G3 4, Spare to drivers side, right side to trunk, cross Newer G3 to front next rotation. (Nokian numbers are MM remaining, they recommend replaceing when the 4 (5/32) is gone for best hydroplanning protection, when 2 is gone toss them.)

12/32 or 9.55 mm original depth

3/32=2.38 mm
2016-07-04 33.2 mi
53.43 km
1 gal (US)
0.83 gal (Imp)
3.79 L
33.7 kWh
$2.199
($2.2 total for this fill)
33.2 mpg (US)
40 mpg (Imp)
7.09 L/100 km
3.01 gal (US)/100 mi
1015.06 Wh/mi
fake fill, 33.2 indicated, changed oil at 56,000 Mobile One,

Edit: She hit curb and ruin one Nokian WRG3 at almost 62,000 Oct 15. I put 2 new G3's I bought for mine with 1,700 miles on the front. Will do 3 tire rotation with older G3, she now has a full size spare.
2016-03-19 323.4 mi
520.46 km
10.967 gal (US)
9.13 gal (Imp)
41.51 L
369.59 kWh
$1.959
($21.48 total for this fill)
29.49 mpg (US)
35.42 mpg (Imp)
7.98 L/100 km
3.39 gal (US)/100 mi
1142.83 Wh/mi
2016-03-13 30 mi
48.28 km
1 gal (US)
0.83 gal (Imp)
3.79 L
33.7 kWh
$1.95
($1.95 total for this fill)
30 mpg (US)
36.14 mpg (Imp)
7.85 L/100 km
3.33 gal (US)/100 mi
1123.33 Wh/mi
Rotated tires & changed oil at 50,000 3/32 above snow wear bars left. 14% oil life remaining.
2016-02-06 226.2 mi
364.03 km
8.23 gal (US)
6.85 gal (Imp)
31.15 L
277.35 kWh
$1.579
($13 total for this fill)
27.48 mpg (US)
33.02 mpg (Imp)
8.56 L/100 km
3.64 gal (US)/100 mi
1226.13 Wh/mi
28.5 ind, 34 mph average
2015-12-20 328.8 mi
529.15 km
11.356 gal (US)
9.46 gal (Imp)
42.99 L
382.7 kWh
$1.849
($21 total for this fill)
28.95 mpg (US)
34.76 mpg (Imp)
8.12 L/100 km
3.45 gal (US)/100 mi
1163.93 Wh/mi
47341 od
2015-12-06 116 mi
186.68 km
3.614 gal (US)
3.01 gal (Imp)
13.68 L
121.79 kWh
$1.939
($7.01 total for this fill)
32.1 mpg (US)
38.54 mpg (Imp)
7.33 L/100 km
3.12 gal (US)/100 mi
1049.91 Wh/mi
32.4 indicated, Kristin did most of partial tank
2015-11-21 304.9 mi
490.69 km
11.274 gal (US)
9.39 gal (Imp)
42.68 L
379.93 kWh
$2.059
($23.21 total for this fill)
27.04 mpg (US)
32.47 mpg (Imp)
8.7 L/100 km
3.7 gal (US)/100 mi
1246.08 Wh/mi
Showed her how to use the remote start, and I think she likes it.
2015-11-06 334.2 mi
537.84 km
10.965 gal (US)
9.13 gal (Imp)
41.51 L
369.52 kWh
$2.189
($24 total for this fill)
30.48 mpg (US)
36.6 mpg (Imp)
7.72 L/100 km
3.28 gal (US)/100 mi
1105.69 Wh/mi
31.9 indicated
2015-10-26 393 mi
632.47 km
12.45 gal (US)
10.37 gal (Imp)
47.13 L
419.57 kWh
$2.249
($28 total for this fill)
31.57 mpg (US)
37.9 mpg (Imp)
7.45 L/100 km
3.17 gal (US)/100 mi
1067.61 Wh/mi
33.4 indicated
2015-10-11 195.7 mi
314.95 km
6.854 gal (US)
5.71 gal (Imp)
25.95 L
230.98 kWh
$2.399
($16.44 total for this fill)
28.55 mpg (US)
34.27 mpg (Imp)
8.24 L/100 km
3.5 gal (US)/100 mi
1180.28 Wh/mi
e10
2015-10-07 203.9 mi
328.15 km
6.506 gal (US)
5.42 gal (Imp)
24.63 L
219.25 kWh
$2.459
($16 total for this fill)
31.34 mpg (US)
37.62 mpg (Imp)
7.51 L/100 km
3.19 gal (US)/100 mi
1075.28 Wh/mi
e10
2015-09-26 205.3 mi
330.4 km
6.281 gal (US)
5.23 gal (Imp)
23.78 L
211.67 kWh
$2.229
($14 total for this fill)
32.69 mpg (US)
39.25 mpg (Imp)
7.2 L/100 km
3.06 gal (US)/100 mi
1031.03 Wh/mi
35.2 indicated, rotated tires and changed oil at 43,000, 10/32 now front, 8/32 now rear (12/32 new)
2015-06-19 165.2 mi
265.86 km
4.353 gal (US)
3.63 gal (Imp)
16.48 L
146.7 kWh
$2.699
($11.75 total for this fill)
37.95 mpg (US)
45.51 mpg (Imp)
6.2 L/100 km
2.63 gal (US)/100 mi
888.01 Wh/mi
e10, 37994 OD, changed oil, 37.4 3-short tanks, 39.1 indicated
2015-06-18 119.3 mi
191.99 km
3.076 gal (US)
2.56 gal (Imp)
11.64 L
103.66 kWh
$2.699
($8.3 total for this fill)
38.78 mpg (US)
46.6 mpg (Imp)
6.06 L/100 km
2.58 gal (US)/100 mi
868.9 Wh/mi
e10, 39.5 indicated
2015-06-17 325 mi
523.04 km
8.885 gal (US)
7.4 gal (Imp)
33.63 L
299.42 kWh
$2.699
($23.98 total for this fill)
36.58 mpg (US)
43.92 mpg (Imp)
6.43 L/100 km
2.73 gal (US)/100 mi
921.29 Wh/mi
e10, 150 miles of AC, rest my commute
2015-01-10 260.6 mi
419.4 km
8.685 gal (US)
7.23 gal (Imp)
32.88 L
292.68 kWh
$1.859
($16.15 total for this fill)
30.01 mpg (US)
36.04 mpg (Imp)
7.84 L/100 km
3.33 gal (US)/100 mi
1123.1 Wh/mi
E10, bcm replaced 10 miles before refill, wonder if it didn't record some of miles on last tank as I drove most of it in better weather than this tank.
2014-11-15 288.3 mi
463.97 km
7.479 gal (US)
6.23 gal (Imp)
28.31 L
252.04 kWh
$2.81
($21.02 total for this fill)
38.55 mpg (US)
46.28 mpg (Imp)
6.1 L/100 km
2.59 gal (US)/100 mi
874.23 Wh/mi
e10 - MOUNTED NOKIAN WRG3 @ 33,300 11-22-14, 195-65-15 vs 195-60-15 OEM 3% taller, new battery 11-23-14
2014-04-20 235.5 mi
379 km
6.344 gal (US)
5.28 gal (Imp)
24.01 L
213.79 kWh
$3.449
($21.88 total for this fill)
37.12 mpg (US)
44.6 mpg (Imp)
6.34 L/100 km
2.69 gal (US)/100 mi
907.81 Wh/mi
e10 36.8 indicated, changed oil & rotated tires, psi to 50
2014-04-16 325.5 mi
523.84 km
9.736 gal (US)
8.11 gal (Imp)
36.85 L
328.1 kWh
$3.719
($36.21 total for this fill)
33.43 mpg (US)
40.14 mpg (Imp)
7.03 L/100 km
2.99 gal (US)/100 mi
1007.99 Wh/mi
e0 87, first 90 miles wife drove with 33.7 indicated, I drove next 200 with 38 indicated average.

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


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