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Fuel log graph
Efficiency log for: CX-5 - 2016 Mazda CX-5 Touring
  • Lifetime Fuel Economy: 31 mpg (US), 7.6 L/100 km, 37.3 mpg (Imp)
  • 90-day Fuel Economy: 31.3 mpg (US), 7.5 L/100 km, 37.5 mpg (Imp)
  • 3-tank Fuel Economy: 31.2 mpg (US), 7.5 L/100 km, 37.5 mpg (Imp)
  • EPA Combined Rating / % over rating: 26 mpg (US) / 20.2% (based on 90-day fuel economy)
  • Total fills: 21
  • Average cost per gal/L: $2.49 per gal (US); $0.00 per L (price data entered for 21 fill/s)
  • Average cost per fill: $27.85
  • Average distance cost: $0.08 per mi. / $0.05 per km
  • Total fuel used: 235.2 gal (US), 890.3 L
  • Total distance traveled: 7301.3 mi. / 11750.3 km
  • Total cost: $584.77
  • Total fuel saved vs. EPA: 45.6 gal. (US) / 172.6 L
  • Total saved: $113.54 (based on avg. cost per gal./L)
  • Average tank distance: 347.7 mi. / 559.5 km
Fill date Distance Fill amount Price Fuel Economy Details
2019-10-18 352 mi
566.49 km
11.191 gal (US)
9.32 gal (Imp)
42.36 L
377.14 kWh
$2.69
($30.1 total for this fill)
31.45 mpg (US)
37.77 mpg (Imp)
7.48 L/100 km
3.18 gal (US)/100 mi
1071.42 Wh/mi
7-11 Falcon
2019-10-07 395.3 mi
636.17 km
12.648 gal (US)
10.53 gal (Imp)
47.88 L
426.24 kWh
$2.499
($31.61 total for this fill)
31.25 mpg (US)
37.54 mpg (Imp)
7.53 L/100 km
3.2 gal (US)/100 mi
1078.27 Wh/mi
Monument 7-11
2019-10-02 381 mi
613.16 km
12.34 gal (US)
10.27 gal (Imp)
46.71 L
415.86 kWh
$2.699
($33.31 total for this fill)
30.88 mpg (US)
37.1 mpg (Imp)
7.62 L/100 km
3.24 gal (US)/100 mi
1091.5 Wh/mi
Kum & Go Monument
2019-09-26 387.4 mi
623.46 km
11.766 gal (US)
9.8 gal (Imp)
44.54 L
396.51 kWh
$2.69
($31.65 total for this fill)
32.93 mpg (US)
39.53 mpg (Imp)
7.14 L/100 km
3.04 gal (US)/100 mi
1023.52 Wh/mi
Kum and Go Monument.
2019-09-21 370.5 mi
596.26 km
12.413 gal (US)
10.34 gal (Imp)
46.99 L
418.32 kWh
$2.57
($31.9 total for this fill)
29.85 mpg (US)
35.83 mpg (Imp)
7.88 L/100 km
3.35 gal (US)/100 mi
1129.07 Wh/mi
Filled at 7-11 this time. Not original pump, slow 1 click. UG read 32.3 mpg. Range was too optimistic, reduced fuel tank size to 15.0g.
2019-09-16 365.9 mi
588.86 km
11.626 gal (US)
9.68 gal (Imp)
44.01 L
391.8 kWh
$2.46
($28.6 total for this fill)
31.47 mpg (US)
37.8 mpg (Imp)
7.47 L/100 km
3.18 gal (US)/100 mi
1070.78 Wh/mi
Second fill at Soopers Monument, same pump, slow, 1 click. UG mpg 33.1. Left fuel calibration alone at 1.074. Seems to still be optimistic in UG, unsure. Range also optimistic but unsure of that's all from MPG differences or using factory capacity vs whatever the cars range calc uses.
2019-09-08 328.2 mi
528.19 km
10.925 gal (US)
9.1 gal (Imp)
41.36 L
368.17 kWh
$2.49
($27.2 total for this fill)
30.04 mpg (US)
36.07 mpg (Imp)
7.83 L/100 km
3.33 gal (US)/100 mi
1121.79 Wh/mi
Wife drove more on this tank, she does not hypermile at all, lead foot also.
2019-08-31 342.6 mi
551.36 km
10.918 gal (US)
9.09 gal (Imp)
41.33 L
367.94 kWh
$2.49
($27.19 total for this fill)
31.38 mpg (US)
37.69 mpg (Imp)
7.5 L/100 km
3.19 gal (US)/100 mi
1073.96 Wh/mi
Same driving techniques as before. Same pump and station, slow and first click only.

UG trip MPG: 34.4 Hand calc: 31.38. Adjusted fuel calibration to get ratio of 1.025 now. Since all these were from the same pump/station/conditions and the UG is overestimating still, I will simply adjust the ratio manually to get close to hand calc.
2019-08-25 326.4 mi
525.29 km
10.611 gal (US)
8.84 gal (Imp)
40.17 L
357.59 kWh
$2.429
($25.77 total for this fill)
30.76 mpg (US)
36.92 mpg (Imp)
7.65 L/100 km
3.25 gal (US)/100 mi
1095.56 Wh/mi
Pump 4 at 7-11. Slow speed, 1 click, 85 oct.

Checked fuel calibration again since hand calc was at 30.7 and UG still had 34.1 for the tank. Adjusted fuel calibration ratio to 1.02, will check again with next tank. DWL, coast when able but had to drive 190 round trip from airport, highways speeds.
2019-08-16 344.5 mi
554.42 km
10.522 gal (US)
8.76 gal (Imp)
39.83 L
354.59 kWh
$2.449
($25.77 total for this fill)
32.74 mpg (US)
39.33 mpg (Imp)
7.18 L/100 km
3.05 gal (US)/100 mi
1029.29 Wh/mi
First tank in a long time with trying for good FE. First tank with UG again, calibrated mileage first, this was the tank used to calibrate FE. UG estimated ~10.2 gal used, same pump at station, slow speed, single click was 10.522 gal. UG showed avg of 36.2 at the end, this difference in gallons does not seem to quite explain that difference in FE but we will see next time. DWL, E-on-C, turned off at some lights, pulsed AC if needed.
2018-03-25 383.2 mi
616.7 km
12.8 gal (US)
10.66 gal (Imp)
48.45 L
431.36 kWh
$2.39
($30.59 total for this fill)
29.94 mpg (US)
35.95 mpg (Imp)
7.86 L/100 km
3.34 gal (US)/100 mi
1125.68 Wh/mi
91 Octane, but last re-fill DW did not reset odometer until later, unsure when. Disregard this tank average.
2018-03-14 342 mi
550.4 km
10.939 gal (US)
9.11 gal (Imp)
41.41 L
368.64 kWh
$2.129
($23.29 total for this fill)
31.26 mpg (US)
37.54 mpg (Imp)
7.52 L/100 km
3.2 gal (US)/100 mi
1077.89 Wh/mi
Had to refuel in Denver, Soopers. 91 Oct
2018-03-08 351.7 mi
566.01 km
11.57 gal (US)
9.63 gal (Imp)
43.8 L
389.91 kWh
$2.87
($33.21 total for this fill)
30.4 mpg (US)
36.52 mpg (Imp)
7.74 L/100 km
3.29 gal (US)/100 mi
1108.64 Wh/mi
Data for first tank run on premium. Had several very windy drives, noticeable impact on daily trip FE.
2018-03-02 377 mi
606.72 km
11.81 gal (US)
9.83 gal (Imp)
44.71 L
398 kWh
$2.87
($33.89 total for this fill)
31.92 mpg (US)
38.35 mpg (Imp)
7.37 L/100 km
3.13 gal (US)/100 mi
1055.7 Wh/mi
Filled with 91 octane now. Fuel economy of this tank though is last fuel of regular octane. Next tank will represent 91 fuel. Cost delta per gallon is about .50$. Will increase in FE justify?
2018-02-22 218.6 mi
351.8 km
7.52 gal (US)
6.26 gal (Imp)
28.47 L
253.42 kWh
$2.28
($17.15 total for this fill)
29.07 mpg (US)
34.92 mpg (Imp)
8.09 L/100 km
3.44 gal (US)/100 mi
1159.29 Wh/mi
Kum and Go Monument, Pump 7, slow, 1 click, 85 oct
2018-02-17 349.6 mi
562.63 km
11.52 gal (US)
9.59 gal (Imp)
43.61 L
388.22 kWh
$2.26
($26.04 total for this fill)
30.35 mpg (US)
36.45 mpg (Imp)
7.75 L/100 km
3.3 gal (US)/100 mi
1110.47 Wh/mi
Kum and Go MON. Pump 7, Reg, slow, 1clk
2018-02-09 300.3 mi
483.29 km
10.1 gal (US)
8.41 gal (Imp)
38.23 L
340.37 kWh
$2.39
($24.14 total for this fill)
29.73 mpg (US)
35.71 mpg (Imp)
7.91 L/100 km
3.36 gal (US)/100 mi
1133.43 Wh/mi
Kum and Go Monument. Pump 7, slow, 1 click. Reg octane
2018-02-01 374 mi
601.89 km
12.18 gal (US)
10.14 gal (Imp)
46.11 L
410.47 kWh
$2.4
($29.23 total for this fill)
30.71 mpg (US)
36.88 mpg (Imp)
7.66 L/100 km
3.26 gal (US)/100 mi
1097.51 Wh/mi
Kum and Go Monuement. Pump 7. Slow fill, single click. Regular Octane. DWL, EOC.
2018-01-25 299.1 mi
481.35 km
9.14 gal (US)
7.61 gal (Imp)
34.6 L
308.02 kWh
$2.34
($21.39 total for this fill)
32.72 mpg (US)
39.3 mpg (Imp)
7.19 L/100 km
3.06 gal (US)/100 mi
1029.82 Wh/mi
Kum and Go, Monument. Pump 5. Slow, 1 Click. 85 Octane
2017-12-30 335 mi
539.13 km
10.26 gal (US)
8.54 gal (Imp)
38.84 L
345.76 kWh
$2.3
($23.6 total for this fill)
32.65 mpg (US)
39.23 mpg (Imp)
7.2 L/100 km
3.06 gal (US)/100 mi
1032.12 Wh/mi
Aired up tires to near max. More actively trying to DWL or EonC.
2017-12-14 377 mi
606.72 km
12.4 gal (US)
10.33 gal (Imp)
46.94 L
417.88 kWh
$2.35
($29.14 total for this fill)
30.4 mpg (US)
36.5 mpg (Imp)
7.74 L/100 km
3.29 gal (US)/100 mi
1108.44 Wh/mi
Falcon Safeway

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


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