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Fuel log graph
Efficiency log for: M.C. - 2001 Chevrolet Impala Base
  • Lifetime Fuel Economy: 21.3 mpg (US), 11 L/100 km, 25.6 mpg (Imp)
  • 90-day Fuel Economy: 21.3 mpg (US), 11.1 L/100 km, 25.5 mpg (Imp)
  • 3-tank Fuel Economy: 21.3 mpg (US), 11.1 L/100 km, 25.5 mpg (Imp)
  • EPA Combined Rating / % over rating: 22 mpg (US) / -3.4% (based on 90-day fuel economy)
  • Total fills: 23
  • Average cost per gal/L: $3.16 per gal (US); $0.00 per L (price data entered for 23 fill/s)
  • Average cost per fill: $37.56
  • Average distance cost: $0.15 per mi. / $0.09 per km
  • Total fuel used: 272.95 gal (US), 1033.2 L
  • Total distance traveled: 5823.9 mi. / 9372.7 km
  • Total cost: $863.85
  • Total fuel saved vs. EPA: -8.2 gal. (US) / -31 L
  • Total saved: $-25.91 (based on avg. cost per gal./L)
  • Average tank distance: 253.2 mi. / 407.5 km
Fill date Distance Fill amount Price Fuel Economy Details
2022-03-09 255.4 mi
411.03 km
9.852 gal (US)
8.2 gal (Imp)
37.29 L
332.01 kWh
$4.299
($42.35 total for this fill)
25.92 mpg (US)
31.15 mpg (Imp)
9.07 L/100 km
3.86 gal (US)/100 mi
1299.96 Wh/mi
59,563.

Amsoil UCL added.

Most of this tank's from a one day trip.

Country Fair Pump 2, same as previous tank. Top Tier Gasoline, 87.
2022-03-06 135.4 mi
217.91 km
7.738 gal (US)
6.44 gal (Imp)
29.29 L
260.77 kWh
$4.099
($31.72 total for this fill)
17.5 mpg (US)
21.02 mpg (Imp)
13.44 L/100 km
5.71 gal (US)/100 mi
1925.92 Wh/mi
59,307.

PSI set to 44 rear / 41 front.

6 oz Amsoil UCL added.
2021-12-21 266.4 mi
428.73 km
13.32 gal (US)
11.09 gal (Imp)
50.42 L
448.88 kWh
$3.489
($46.47 total for this fill)
20 mpg (US)
24.02 mpg (Imp)
11.76 L/100 km
5 gal (US)/100 mi
1684.98 Wh/mi
58,666.0. Lost the receipt to the previous fill, which was 87 E10.

Added Amsoil UCL to this tank, and the previous tank.
2021-11-02 349.8 mi
562.95 km
15.081 gal (US)
12.56 gal (Imp)
57.09 L
508.23 kWh
$4.259
($64.23 total for this fill)
23.19 mpg (US)
27.85 mpg (Imp)
10.14 L/100 km
4.31 gal (US)/100 mi
1452.92 Wh/mi
58,142.

CITGO 90 Octane 100% Gas. No Amsoil UCL Added this fill.

Tire Pressure Increased to 42 Hot.

Stats:

Lifetime Fuel Economy: 21.4 mpg (US), 11 L/100 km, 25.6 mpg (Imp)
90-day Fuel Economy: 22.2 mpg (US), 10.6 L/100 km, 26.7 mpg (Imp)
3-tank Fuel Economy: 22.9 mpg (US), 10.3 L/100 km, 27.5 mpg (Imp)
EPA Combined Rating / % over rating: 22 mpg (US) / 1% (based on 90-day fuel economy)
Total fills: 20
Average cost per gal/L: $3.07 per gal (US); $0.00 per L (price data entered for 20 fill/s)
Average cost per fill: $37.17
Average distance cost: $0.14 per mi. / $0.09 per km
Total fuel used: 242.04 gal (US), 916.2 L
Total distance traveled: 5166.7 mi. / 8315 km
Total cost: $743.31
Total fuel saved vs. EPA: -7.2 gal. (US) / -27.3 L
Total saved: $-22.1 (based on avg. cost per gal./L)
Average tank distance: 258.3 mi. / 415.7 km
2021-10-10 236.8 mi
381.09 km
9.272 gal (US)
7.72 gal (Imp)
35.1 L
312.47 kWh
$4.159
($38.56 total for this fill)
25.54 mpg (US)
30.67 mpg (Imp)
9.21 L/100 km
3.92 gal (US)/100 mi
1319.55 Wh/mi
57,792

Previous, missed fill-up: 57,555.2

Added 6 oz. Amsoil UCL this tank, before filling up. Add $5.49 to the bill.

Tires set to 40 Hot again. Not much air was lost.

This tank might be a bit silly and optimistic, so, I'll wait longer before the next fill-up; not until the Low Fuel Light pops up.

Lifetime Fuel Economy: 21.2 mpg (US), 11.1 L/100 km, 25.5 mpg (Imp)
90-day Fuel Economy: 22.1 mpg (US), 10.6 L/100 km, 26.6 mpg (Imp)
3-tank Fuel Economy: 21.8 mpg (US), 10.8 L/100 km, 26.2 mpg (Imp)
EPA Combined Rating / % over rating: 22 mpg (US) / 0.5% (based on 90-day fuel economy)
Total fills: 19
Average cost per gal/L: $2.99 per gal (US); $0.00 per L (price data entered for 19 fill/s)
Average cost per fill: $35.74
Average distance cost: $0.14 per mi. / $0.09 per km
Total fuel used: 226.96 gal (US), 859.1 L
Total distance traveled: 4816.9 mi. / 7752 km
Total cost: $679.08
Total fuel saved vs. EPA: -8 gal. (US) / -30.3 L
Total saved: $-23.92 (based on avg. cost per gal./L)
Average tank distance: 253.5 mi. / 408 km
2021-09-10 278 mi
447.4 km
13.409 gal (US)
11.17 gal (Imp)
50.76 L
451.88 kWh
$3.409
($45.71 total for this fill)
20.73 mpg (US)
24.89 mpg (Imp)
11.35 L/100 km
4.82 gal (US)/100 mi
1625.47 Wh/mi
57,310.

Added 6 oz Amsoil UCL at this fill, so, this tank reading is slightly optimistic. Add $5 to fuel cost for UCL.

Lifetime Fuel Economy: 21 mpg (US), 11.2 L/100 km, 25.3 mpg (Imp)
90-day Fuel Economy: 21.1 mpg (US), 11.1 L/100 km, 25.4 mpg (Imp)
3-tank Fuel Economy: 21.3 mpg (US), 11 L/100 km, 25.6 mpg (Imp)
EPA Combined Rating / % over rating: 22 mpg (US) / -3.9% (based on 90-day fuel economy)
Total fills: 18
Average cost per gal/L: $2.94 per gal (US); $0.00 per L (price data entered for 18 fill/s)
Average cost per fill: $35.58
Average distance cost: $0.14 per mi. / $0.09 per km
Total fuel used: 217.69 gal (US), 824 L
Total distance traveled: 4580.1 mi. / 7371 km
Total cost: $640.52
Total fuel saved vs. EPA: -9.5 gal. (US) / -36 L
Total saved: $-27.93 (based on avg. cost per gal./L)
Average tank distance: 254.5 mi. / 409.5 km
2021-08-18 270 mi
434.52 km
13.3 gal (US)
11.08 gal (Imp)
50.35 L
448.21 kWh
$3.309
($44.01 total for this fill)
20.3 mpg (US)
24.37 mpg (Imp)
11.59 L/100 km
4.93 gal (US)/100 mi
1660.04 Wh/mi
57,032.

Rough estimate of what we actually bought. The distance is about accurate, but I forgot the exact amount of fuel used and the price per gallon, and when I bought it. It was in August, though.

Total distance traveled: 4302.1 mi. / 6923.6 km
Total cost: $594.81
Total fuel saved vs. EPA: -8.7 gal. (US) / -32.9 L
Total saved: $-25.32 (based on avg. cost per gal./L)
2021-08-01 307.3 mi
494.55 km
13.407 gal (US)
11.16 gal (Imp)
50.75 L
451.82 kWh
$3.359
($45.03 total for this fill)
22.92 mpg (US)
27.54 mpg (Imp)
10.26 L/100 km
4.36 gal (US)/100 mi
1470.29 Wh/mi
56,762.

Sheetz, Pump 8. 39 PSI.

Did not put 12 Oz Heet in this fill-up.
2021-07-09 145.1 mi
233.52 km
7.098 gal (US)
5.91 gal (Imp)
26.87 L
239.2 kWh
$3.309
($23.49 total for this fill)
20.44 mpg (US)
24.55 mpg (Imp)
11.51 L/100 km
4.89 gal (US)/100 mi
1648.52 Wh/mi
56,455 Mi.

Maybe 4 oz Yellow HEET Added.
2021-06-20 293 mi
471.54 km
13.967 gal (US)
11.63 gal (Imp)
52.87 L
470.69 kWh
$3.259
($45.52 total for this fill)
20.98 mpg (US)
25.19 mpg (Imp)
11.21 L/100 km
4.77 gal (US)/100 mi
1606.45 Wh/mi
56,310 Mi.

12 oz Yellow HEET Added.
2021-05-11 270.1 mi
434.68 km
13.533 gal (US)
11.27 gal (Imp)
51.23 L
456.06 kWh
$3.049
($41.26 total for this fill)
19.96 mpg (US)
23.97 mpg (Imp)
11.79 L/100 km
5.01 gal (US)/100 mi
1688.49 Wh/mi
56,017 Miles.

40 PSI Hot.

12 oz Yellow Heet added at the end.
2021-02-01 212.3 mi
341.66 km
12.752 gal (US)
10.62 gal (Imp)
48.27 L
429.74 kWh
$2.749
($35.06 total for this fill)
16.65 mpg (US)
19.99 mpg (Imp)
14.13 L/100 km
6.01 gal (US)/100 mi
2024.21 Wh/mi
Added 12 oz Yellow HEET.
2020-10-25 289.9 mi
466.55 km
12.626 gal (US)
10.51 gal (Imp)
47.79 L
425.5 kWh
$2.499
($31.55 total for this fill)
22.96 mpg (US)
27.58 mpg (Imp)
10.24 L/100 km
4.36 gal (US)/100 mi
1467.75 Wh/mi
Not an accurate tank reading. Put 1 bottle of HEET (Yellow) in this previous tank and 2 oz Opti-Lube XL. Also added 12 oz Amsoil Performance Improver this tank, since it's just over 55k miles (55,044.)

I replaced the fuel filter relatively recently.
2020-08-22 213.3 mi
343.27 km
10.304 gal (US)
8.58 gal (Imp)
39 L
347.24 kWh
$2.499
($25.75 total for this fill)
20.7 mpg (US)
24.86 mpg (Imp)
11.36 L/100 km
4.83 gal (US)/100 mi
1627.94 Wh/mi
Sheetz Pump 8. 87 E10.

Also added 2 ounces of Opti-Lube XL (Diesel Additive) to the tank, plus 12 oz HEET (Yellow Bottle.)

Tires re-checked, and I removed about 2 PSI from each tire, making them 45 PSI Hot.
2020-06-30 275.2 mi
442.89 km
12.916 gal (US)
10.75 gal (Imp)
48.89 L
435.27 kWh
$2.459
($31.76 total for this fill)
21.31 mpg (US)
25.6 mpg (Imp)
11.04 L/100 km
4.69 gal (US)/100 mi
1581.65 Wh/mi
2020-02-06 224.8 mi
361.78 km
8.53 gal (US)
7.1 gal (Imp)
32.29 L
287.46 kWh
$2.759
($23.53 total for this fill)
26.35 mpg (US)
31.66 mpg (Imp)
8.93 L/100 km
3.79 gal (US)/100 mi
1278.74 Wh/mi
This tank was a trip to Pittsburgh for the Dentist.
2020-02-02 217.3 mi
349.71 km
10.717 gal (US)
8.92 gal (Imp)
40.57 L
361.16 kWh
$2.759
($29.57 total for this fill)
20.28 mpg (US)
24.36 mpg (Imp)
11.6 L/100 km
4.93 gal (US)/100 mi
1662.03 Wh/mi
2019-11-28 232 mi
373.37 km
11.588 gal (US)
9.65 gal (Imp)
43.87 L
390.52 kWh
$2.959
($34.29 total for this fill)
20.02 mpg (US)
24.04 mpg (Imp)
11.75 L/100 km
4.99 gal (US)/100 mi
1683.28 Wh/mi
First tank logged with Amsoil 0w30, Amsoil Signature Series ATF and Engine Off Coasting (mostly local driving.)
2019-02-14 222.8 mi
358.56 km
12.884 gal (US)
10.73 gal (Imp)
48.77 L
434.19 kWh
$2.649
($34.13 total for this fill)
17.29 mpg (US)
20.76 mpg (Imp)
13.6 L/100 km
5.78 gal (US)/100 mi
1948.79 Wh/mi
2018-07-02 328.7 mi
528.99 km
14.086 gal (US)
11.73 gal (Imp)
53.32 L
474.7 kWh
$3
($42.26 total for this fill)
23.34 mpg (US)
28.02 mpg (Imp)
10.08 L/100 km
4.29 gal (US)/100 mi
1444.17 Wh/mi
Skipped some tanks.
2018-06-06 257.3 mi
414.08 km
12.4 gal (US)
10.33 gal (Imp)
46.94 L
417.88 kWh
$3.109
($38.55 total for this fill)
20.75 mpg (US)
24.91 mpg (Imp)
11.34 L/100 km
4.82 gal (US)/100 mi
1624.1 Wh/mi
Skipped one tank recording.

Rough estimate of fuel used (counting a small partial fill.) Added RLI Additive.
2018-04-16 284.2 mi
457.38 km
13.862 gal (US)
11.54 gal (Imp)
52.47 L
467.15 kWh
$2.929
($40.6 total for this fill)
20.5 mpg (US)
24.63 mpg (Imp)
11.47 L/100 km
4.88 gal (US)/100 mi
1643.74 Wh/mi
GETGO Brookville Pump 1. Added 2 oz RLI Additive at end.
2018-03-24 258.8 mi
416.5 km
10.31 gal (US)
8.59 gal (Imp)
39.03 L
347.45 kWh
$2.759
($28.45 total for this fill)
25.1 mpg (US)
30.13 mpg (Imp)
9.37 L/100 km
3.98 gal (US)/100 mi
1342.54 Wh/mi
Filled at Brookville, PA Sheetz Pump 7. Added 1 oz RLI additive before pumping. Had Amsoil Performance Improver in the previous tank; the injectors are clean.

Most driving was "HWY." Engine off coasted for an estimated 15-30 miles this tank.

Aired up tires to 44 Hot in the latter half of the tank (they were a few pounds low.)

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


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