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Fuel log graph
Efficiency log for: M. C. - 2001 Chevrolet Impala Base
  • Lifetime Fuel Economy: 20.6 mpg (US), 11.4 L/100 km, 24.8 mpg (Imp)
  • 90-day Fuel Economy: 17.1 mpg (US), 13.8 L/100 km, 20.5 mpg (Imp)
  • 3-tank Fuel Economy: 19.4 mpg (US), 12.1 L/100 km, 23.3 mpg (Imp)
  • EPA Combined Rating / % over rating: 22 mpg (US) / -22.3% (based on 90-day fuel economy)
  • Total fills: 35
  • Average cost per gal/L: $3.41 per gal (US); $0.00 per L (price data entered for 35 fill/s)
  • Average cost per fill: $42.32
  • Average distance cost: $0.17 per mi. / $0.10 per km
  • Total fuel used: 435 gal (US), 1646.6 L
  • Total distance traveled: 8965.3 mi. / 14428.3 km
  • Total cost: $1,481.32
  • Total fuel saved vs. EPA: -27.5 gal. (US) / -104.1 L
  • Total saved: $-93.78 (based on avg. cost per gal./L)
  • Average tank distance: 256.2 mi. / 412.2 km
Fill date Distance Fill amount Price Fuel Economy Details
2024-02-25 221.6 mi
356.63 km
12.969 gal (US)
10.8 gal (Imp)
49.09 L
437.06 kWh
$3.599
($46.68 total for this fill)
17.09 mpg (US)
20.52 mpg (Imp)
13.76 L/100 km
5.85 gal (US)/100 mi
1972.29 Wh/mi
66,010 Odometer.
221.6 Trip Meter.
Amsoil UCL Added at B. P. Pump 1.
2023-08-27 298.8 mi
480.87 km
14.54 gal (US)
12.11 gal (Imp)
55.04 L
490 kWh
$3.959
($57.56 total for this fill)
20.55 mpg (US)
24.67 mpg (Imp)
11.45 L/100 km
4.87 gal (US)/100 mi
1639.89 Wh/mi
64,347 Miles. Amsoil UCL added. B. P. Gas.



Lifetime Fuel Economy: 20.7 mpg (US), 11.4 L/100 km, 24.9 mpg (Imp)
90-day Fuel Economy: 20.6 mpg (US), 11.4 L/100 km, 24.7 mpg (Imp)
3-tank Fuel Economy: 20.6 mpg (US), 11.4 L/100 km, 24.7 mpg (Imp)
EPA Combined Rating / % over rating: 22 mpg (US) / -6.5% (based on 90-day fuel economy)
Total fills: 34
Average cost per gal/L: $3.40 per gal (US); $0.00 per L (price data entered for 34 fill/s)
Average cost per fill: $42.20
Average distance cost: $0.16 per mi. / $0.10 per km
Total fuel used: 422.03 gal (US), 1597.6 L
Total distance traveled: 8743.7 mi. / 14071.6 km
Total cost: $1,434.64
Total fuel saved vs. EPA: -24.6 gal. (US) / -93.1 L
Total saved: $-83.64 (based on avg. cost per gal./L)
Average tank distance: 257.2 mi. / 413.9 km
2023-07-14 250.7 mi
403.46 km
12.202 gal (US)
10.16 gal (Imp)
46.19 L
411.21 kWh
$3.659
($44.65 total for this fill)
20.55 mpg (US)
24.68 mpg (Imp)
11.45 L/100 km
4.87 gal (US)/100 mi
1640.25 Wh/mi
64,049.x miles. B. P. Pump 3.

Amsoil UCL Added.

Lifetime Fuel Economy: 20.7 mpg (US), 11.4 L/100 km, 24.9 mpg (Imp)
90-day Fuel Economy: 19.6 mpg (US), 12 L/100 km, 23.6 mpg (Imp)
3-tank Fuel Economy: 20.3 mpg (US), 11.6 L/100 km, 24.4 mpg (Imp)
EPA Combined Rating / % over rating: 22 mpg (US) / -10.8% (based on 90-day fuel economy)
Total fills: 33
Average cost per gal/L: $3.38 per gal (US); $0.00 per L (price data entered for 33 fill/s)
Average cost per fill: $41.73
Average distance cost: $0.16 per mi. / $0.10 per km
Total fuel used: 407.49 gal (US), 1542.5 L
Total distance traveled: 8444.9 mi. / 13590.8 km
Total cost: $1,377.08
Total fuel saved vs. EPA: -23.6 gal. (US) / -89.3 L
Total saved: $-79.77 (based on avg. cost per gal./L)
Average tank distance: 255.9 mi. / 411.8 km
2023-06-16 263.8 mi
424.54 km
12.798 gal (US)
10.66 gal (Imp)
48.45 L
431.29 kWh
$3.659
($46.83 total for this fill)
20.61 mpg (US)
24.75 mpg (Imp)
11.41 L/100 km
4.85 gal (US)/100 mi
1634.91 Wh/mi
63,798 Miles.

B. P. Pump 1. Added Amsoil UCL. Aired tires to 42 front / 46 or 47 rear when hot.

Funny how the car's mileage ends in 798, and the fuel pumped ended in 798.

Lifetime Fuel Economy: 20.7 mpg (US), 11.3 L/100 km, 24.9 mpg (Imp)
90-day Fuel Economy: 19.4 mpg (US), 12.2 L/100 km, 23.2 mpg (Imp)
3-tank Fuel Economy: 19.4 mpg (US), 12.2 L/100 km, 23.2 mpg (Imp)
EPA Combined Rating / % over rating: 22 mpg (US) / -12% (based on 90-day fuel economy)
Total fills: 32
Average cost per gal/L: $3.37 per gal (US); $0.00 per L (price data entered for 32 fill/s)
Average cost per fill: $41.64
Average distance cost: $0.16 per mi. / $0.10 per km
Total fuel used: 395.29 gal (US), 1496.3 L
Total distance traveled: 8194.2 mi. / 13187.3 km
Total cost: $1,332.43
Total fuel saved vs. EPA: -22.8 gal. (US) / -86.3 L
Total saved: $-76.84 (based on avg. cost per gal./L)
Average tank distance: 256.1 mi. / 412.1 km
2023-05-25 266.5 mi
428.89 km
13.442 gal (US)
11.19 gal (Imp)
50.88 L
453 kWh
$3.659
($49.18 total for this fill)
19.83 mpg (US)
23.82 mpg (Imp)
11.86 L/100 km
5.04 gal (US)/100 mi
1699.81 Wh/mi
63,534 Miles.

B.P. Pump 3. Amsoil U.C.L. added.
2023-04-27 254.2 mi
409.1 km
14.31 gal (US)
11.92 gal (Imp)
54.17 L
482.25 kWh
$3.759
($53.79 total for this fill)
17.76 mpg (US)
21.33 mpg (Imp)
13.24 L/100 km
5.63 gal (US)/100 mi
1897.13 Wh/mi
63,267.0 Miles.

B.P. Pump 1. Amsoil UCL Added.
2023-03-16 276.5 mi
444.98 km
14.38 gal (US)
11.97 gal (Imp)
54.43 L
484.61 kWh
$3.699
($53.19 total for this fill)
19.23 mpg (US)
23.1 mpg (Imp)
12.23 L/100 km
5.2 gal (US)/100 mi
1752.66 Wh/mi
63,013.0 Miles.

B. P. Gas, Pump 2. Amsoil UCL Added. Tire PSI set to 43 front, 47 rear.
2023-01-17 240.3 mi
386.73 km
14.45 gal (US)
12.03 gal (Imp)
54.7 L
486.97 kWh
$3.799
($54.9 total for this fill)
16.63 mpg (US)
19.98 mpg (Imp)
14.14 L/100 km
6.01 gal (US)/100 mi
2026.51 Wh/mi
62,737 Miles. Winter tank.

Amsoil UCL Added. B. P. Gas, 87 E10, as previous recent tanks.
2022-12-09 240.8 mi
387.53 km
13.579 gal (US)
11.31 gal (Imp)
51.4 L
457.61 kWh
$3.899
($52.94 total for this fill)
17.73 mpg (US)
21.29 mpg (Imp)
13.26 L/100 km
5.64 gal (US)/100 mi
1900.37 Wh/mi
62,496 Miles. Cold weather driving.

Amsoil UCL Added.
2022-11-09 303 mi
487.63 km
13.94 gal (US)
11.61 gal (Imp)
52.77 L
469.78 kWh
$4.159
($57.98 total for this fill)
21.74 mpg (US)
26.1 mpg (Imp)
10.82 L/100 km
4.6 gal (US)/100 mi
1550.43 Wh/mi
62,255.0 Miles.

BP Gas, Pump 4. Amsoil UCL Added.
2022-10-18 233.5 mi
375.78 km
11.485 gal (US)
9.56 gal (Imp)
43.48 L
387.04 kWh
$3.999
($45.93 total for this fill)
20.33 mpg (US)
24.42 mpg (Imp)
11.57 L/100 km
4.92 gal (US)/100 mi
1657.56 Wh/mi
61,952 Miles.

Numerous tanks weren't tracked.

Amsoil UCL Added.
2022-09-23 291.7 mi
469.45 km
13.951 gal (US)
11.62 gal (Imp)
52.81 L
470.15 kWh
$3.859
($53.84 total for this fill)
20.91 mpg (US)
25.1 mpg (Imp)
11.25 L/100 km
4.78 gal (US)/100 mi
1611.76 Wh/mi
61,719.0.

Previous tank was approx. at 61,427.3 miles.

Amsoil UCL added.
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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