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Fuel log graph
Efficiency log for: TBD - 2017 Toyota Corolla LE
  • Lifetime Fuel Economy: 33.8 mpg (US), 7 L/100 km, 40.6 mpg (Imp)
  • 90-day Fuel Economy: 31.4 mpg (US), 7.5 L/100 km, 37.7 mpg (Imp)
  • 3-tank Fuel Economy: 32.2 mpg (US), 7.3 L/100 km, 38.6 mpg (Imp)
  • EPA Combined Rating / % over rating: 32 mpg (US) / -1.9% (based on 90-day fuel economy)
  • Total fills: 46
  • Average cost per gal/L: $2.26 per gal (US); $0.00 per L (price data entered for 46 fill/s)
  • Average cost per fill: $22.37
  • Average distance cost: $0.07 per mi. / $0.04 per km
  • Total fuel used: 454.74 gal (US), 1721.4 L
  • Total distance traveled: 15373.3 mi. / 24740.9 km
  • Total cost: $1,028.86
  • Total fuel saved vs. EPA: 25.7 gal. (US) / 97.3 L
  • Total saved: $58.08 (based on avg. cost per gal./L)
  • Average tank distance: 334.2 mi. / 537.8 km
Fill date Distance Fill amount Price Fuel Economy Details
2020-12-17 306.1 mi
492.62 km
9.809 gal (US)
8.17 gal (Imp)
37.13 L
330.56 kWh
$2.059
($20.2 total for this fill)
31.21 mpg (US)
37.47 mpg (Imp)
7.54 L/100 km
3.2 gal (US)/100 mi
1079.91 Wh/mi
Mystified by this tank. Working in Mooresville for 3 days, so 3 solid 50+ round trip days all on the Interstate. AND...ANNNNDD...I added grill blockers about 1/4 way into tank. Yet, one of the worst tanks ever. Mystified.

One thing to add. Left rear tire has been intermittently low and I've been having to add air to it about every 3 days. Thus it would go from its high of around 44 psi, past the recommended psi (32 or so?), then down to around 20. Not sure what the threshold is for the TPS to go off, surely it's as it dips below 32? Internets says 25% below recommended, thus around 24 psi? Point all being, there have been mornings where I've noticed the TPS lit, I've driven to work and back (it's a short round trip and believe it or not, the tire never look visibly low), and then filled my tire up when I got home. I wouldn't think that alone, one tire below 24 psi, could be the pure driver for the crap MPG? Given the grill blockers were just added, I'm more suspicious of them.

Anyway, just one more pieces of anecdotal data. The grill blockers should be a no-brainer gain. So maybe it is that intermittent low tire.
2020-11-27 359.7 mi
578.88 km
10.658 gal (US)
8.87 gal (Imp)
40.34 L
359.17 kWh
$1.999
($21.31 total for this fill)
33.75 mpg (US)
40.55 mpg (Imp)
6.97 L/100 km
2.96 gal (US)/100 mi
998.53 Wh/mi
2020-10-31 337.5 mi
543.15 km
10.716 gal (US)
8.92 gal (Imp)
40.56 L
361.13 kWh
$1.859
($19.92 total for this fill)
31.49 mpg (US)
37.84 mpg (Imp)
7.47 L/100 km
3.18 gal (US)/100 mi
1070.01 Wh/mi
All city. Back and forth to work only.
2020-10-11 322.1 mi
518.37 km
11.026 gal (US)
9.18 gal (Imp)
41.74 L
371.58 kWh
$1.949
($21.49 total for this fill)
29.21 mpg (US)
35.09 mpg (Imp)
8.05 L/100 km
3.42 gal (US)/100 mi
1153.62 Wh/mi
All city. Back and forth to work only.
2020-09-16 360.4 mi
580.01 km
11.016 gal (US)
9.17 gal (Imp)
41.7 L
371.24 kWh
$1.949
($21.47 total for this fill)
32.72 mpg (US)
39.3 mpg (Imp)
7.19 L/100 km
3.06 gal (US)/100 mi
1030.08 Wh/mi
All city. Back and forth to work only.
2020-08-25 326.8 mi
525.93 km
11.171 gal (US)
9.3 gal (Imp)
42.29 L
376.46 kWh
$1.999
($22.33 total for this fill)
29.25 mpg (US)
35.14 mpg (Imp)
8.04 L/100 km
3.42 gal (US)/100 mi
1151.96 Wh/mi
All city. Back and forth to work only.
2020-07-31 345.3 mi
555.71 km
10.576 gal (US)
8.81 gal (Imp)
40.03 L
356.41 kWh
$2.059
($21.78 total for this fill)
32.65 mpg (US)
39.19 mpg (Imp)
7.2 L/100 km
3.06 gal (US)/100 mi
1032.17 Wh/mi
2020-07-07 402.7 mi
648.08 km
10.866 gal (US)
9.05 gal (Imp)
41.13 L
366.18 kWh
$1.99
($21.62 total for this fill)
37.06 mpg (US)
44.5 mpg (Imp)
6.35 L/100 km
2.7 gal (US)/100 mi
909.31 Wh/mi
2020-06-14 369.3 mi
594.33 km
10.86 gal (US)
9.04 gal (Imp)
41.11 L
365.98 kWh
$1.859
($20.19 total for this fill)
34.01 mpg (US)
40.85 mpg (Imp)
6.92 L/100 km
2.94 gal (US)/100 mi
991.01 Wh/mi
2020-05-16 351.9 mi
566.33 km
10.703 gal (US)
8.91 gal (Imp)
40.52 L
360.69 kWh
$1.699
($18.18 total for this fill)
32.88 mpg (US)
39.49 mpg (Imp)
7.15 L/100 km
3.04 gal (US)/100 mi
1024.98 Wh/mi
Covid-19
2020-03-15 381.7 mi
614.29 km
10.743 gal (US)
8.95 gal (Imp)
40.67 L
362.04 kWh
$1.949
($20.94 total for this fill)
35.53 mpg (US)
42.65 mpg (Imp)
6.62 L/100 km
2.81 gal (US)/100 mi
948.49 Wh/mi
Proof that this car loves the highway. Months of carpool pick up and exclusively short trips to the store, etc., and the MPG has tanked. Then a week where I get some highway mileage and viola, the numbers are way up.
2020-03-06 330.4 mi
531.73 km
10.704 gal (US)
8.91 gal (Imp)
40.52 L
360.72 kWh
$2.049
($21.93 total for this fill)
30.87 mpg (US)
37.08 mpg (Imp)
7.62 L/100 km
3.24 gal (US)/100 mi
1091.77 Wh/mi
2020-02-24 319.3 mi
513.86 km
10.368 gal (US)
8.63 gal (Imp)
39.25 L
349.4 kWh
$2.199
($22.8 total for this fill)
30.8 mpg (US)
37 mpg (Imp)
7.64 L/100 km
3.25 gal (US)/100 mi
1094.27 Wh/mi
2020-02-10 324.6 mi
522.39 km
10.629 gal (US)
8.85 gal (Imp)
40.24 L
358.2 kWh
$2.199
($23.37 total for this fill)
30.54 mpg (US)
36.68 mpg (Imp)
7.7 L/100 km
3.27 gal (US)/100 mi
1103.51 Wh/mi
2020-01-28 316 mi
508.55 km
10.647 gal (US)
8.86 gal (Imp)
40.3 L
358.8 kWh
$2.349
($25.01 total for this fill)
29.68 mpg (US)
35.67 mpg (Imp)
7.92 L/100 km
3.37 gal (US)/100 mi
1135.44 Wh/mi
2020-01-16 331.4 mi
533.34 km
10.445 gal (US)
8.7 gal (Imp)
39.54 L
352 kWh
$2.359
($24.64 total for this fill)
31.73 mpg (US)
38.09 mpg (Imp)
7.41 L/100 km
3.15 gal (US)/100 mi
1062.16 Wh/mi
2020-01-06 325.9 mi
524.49 km
10.224 gal (US)
8.51 gal (Imp)
38.7 L
344.55 kWh
$2.389
($24.43 total for this fill)
31.88 mpg (US)
38.3 mpg (Imp)
7.38 L/100 km
3.14 gal (US)/100 mi
1057.23 Wh/mi
2019-12-27 327.4 mi
526.9 km
10.285 gal (US)
8.56 gal (Imp)
38.93 L
346.6 kWh
$2.279
($23.44 total for this fill)
31.83 mpg (US)
38.25 mpg (Imp)
7.39 L/100 km
3.14 gal (US)/100 mi
1058.64 Wh/mi
2019-12-14 343.1 mi
552.17 km
11.03 gal (US)
9.18 gal (Imp)
41.75 L
371.71 kWh
$2.399
($26.46 total for this fill)
31.11 mpg (US)
37.37 mpg (Imp)
7.56 L/100 km
3.21 gal (US)/100 mi
1083.39 Wh/mi
Car was in repair for about 3 weeks. They replaced the aftermarket spoiler I had purchased for a factory spoiler. Always felt the factory spoiler seemed a little better in execution than the one I purchased as it is much flusher to the trunk deck. The only thing I'd like to do is somehow sharpen the trailing edge, like I did on the aftermarket spoiler.
2019-11-18 415.9 mi
669.33 km
10.892 gal (US)
9.07 gal (Imp)
41.23 L
367.06 kWh
$2.319
($25.26 total for this fill)
38.18 mpg (US)
45.85 mpg (Imp)
6.16 L/100 km
2.62 gal (US)/100 mi
882.57 Wh/mi
Return trip and in-town city driving for a week.
2019-11-13 240.7 mi
387.37 km
6.125 gal (US)
5.1 gal (Imp)
23.19 L
206.41 kWh
$2.479
($15.18 total for this fill)
39.3 mpg (US)
47.2 mpg (Imp)
5.99 L/100 km
2.54 gal (US)/100 mi
857.54 Wh/mi
Return trip. Car rear ended in Orlando.
2019-11-12 409.5 mi
659.03 km
9.901 gal (US)
8.24 gal (Imp)
37.48 L
333.66 kWh
$2.169
($21.48 total for this fill)
41.36 mpg (US)
49.7 mpg (Imp)
5.69 L/100 km
2.42 gal (US)/100 mi
814.8 Wh/mi
Trip to Orlando.
2019-11-10 258.6 mi
416.18 km
7.03 gal (US)
5.85 gal (Imp)
26.61 L
236.91 kWh
$2.658
($18.69 total for this fill)
36.79 mpg (US)
44.21 mpg (Imp)
6.39 L/100 km
2.72 gal (US)/100 mi
916.13 Wh/mi
Trip to Orlando. 1/3 of this tank was city.
2019-11-07 353.6 mi
569.06 km
10.232 gal (US)
8.52 gal (Imp)
38.73 L
344.82 kWh
$2.319
($23.73 total for this fill)
34.56 mpg (US)
41.5 mpg (Imp)
6.81 L/100 km
2.89 gal (US)/100 mi
975.17 Wh/mi
2019-11-01 351 mi
564.88 km
11.257 gal (US)
9.37 gal (Imp)
42.61 L
379.36 kWh
$2.319
($26.1 total for this fill)
31.18 mpg (US)
37.46 mpg (Imp)
7.54 L/100 km
3.21 gal (US)/100 mi
1080.8 Wh/mi
2019-10-16 412.6 mi
664.02 km
11.17 gal (US)
9.3 gal (Imp)
42.28 L
376.43 kWh
$2.359
($26.35 total for this fill)
36.94 mpg (US)
44.37 mpg (Imp)
6.37 L/100 km
2.71 gal (US)/100 mi
912.34 Wh/mi
300 mile round trip highway for Soccer game over weekend (saw 42 MPG for the trip car-side) + 3 normal city driving days.
2019-10-12 358.3 mi
576.63 km
10.799 gal (US)
8.99 gal (Imp)
40.88 L
363.93 kWh
$2.159
($23.32 total for this fill)
33.18 mpg (US)
39.86 mpg (Imp)
7.09 L/100 km
3.01 gal (US)/100 mi
1015.71 Wh/mi
2019-10-02 352.4 mi
567.13 km
11.041 gal (US)
9.19 gal (Imp)
41.79 L
372.08 kWh
$2.379
($26.27 total for this fill)
31.92 mpg (US)
38.35 mpg (Imp)
7.37 L/100 km
3.13 gal (US)/100 mi
1055.85 Wh/mi
2019-09-19 363.9 mi
585.64 km
10.121 gal (US)
8.43 gal (Imp)
38.31 L
341.08 kWh
$2.439
($24.69 total for this fill)
35.95 mpg (US)
43.17 mpg (Imp)
6.54 L/100 km
2.78 gal (US)/100 mi
937.29 Wh/mi
2nd half of trip to Winston-Salem, normal week of carpool and soccer practice.
2019-09-14 355.5 mi
572.12 km
9.99 gal (US)
8.32 gal (Imp)
37.82 L
336.66 kWh
$2.239
($22.37 total for this fill)
35.59 mpg (US)
42.73 mpg (Imp)
6.61 L/100 km
2.81 gal (US)/100 mi
947 Wh/mi
Normal week with one-way trip to Winston-Salem at the tail end of tank.
2019-09-08 348.8 mi
561.34 km
9.765 gal (US)
8.13 gal (Imp)
36.96 L
329.08 kWh
$2.259
($22.06 total for this fill)
35.72 mpg (US)
42.9 mpg (Imp)
6.58 L/100 km
2.8 gal (US)/100 mi
943.46 Wh/mi
Worked in Mooresville this week, lots of travel on I-77. Added additional radiator grill blocker in center of radiator.
2019-08-30 371.9 mi
598.52 km
10.897 gal (US)
9.07 gal (Imp)
41.25 L
367.23 kWh
$2.299
($25.05 total for this fill)
34.13 mpg (US)
41 mpg (Imp)
6.89 L/100 km
2.93 gal (US)/100 mi
987.44 Wh/mi
Return trip from Aiken SC plus a week of carpool.
2019-08-25 307.5 mi
494.87 km
8.783 gal (US)
7.31 gal (Imp)
33.25 L
295.99 kWh
$2.039
($17.91 total for this fill)
35.01 mpg (US)
42.07 mpg (Imp)
6.72 L/100 km
2.86 gal (US)/100 mi
962.57 Wh/mi
Trip to Aiken SC. Fill up was about 3/4 tank, though first 1/4 tank was normal week of carpools and school start.
2019-08-21 355.5 mi
572.12 km
10.865 gal (US)
9.05 gal (Imp)
41.13 L
366.15 kWh
$2.399
($26.07 total for this fill)
32.72 mpg (US)
39.28 mpg (Imp)
7.19 L/100 km
3.06 gal (US)/100 mi
1029.96 Wh/mi
School has started, so that means carpool lines and increased traffic. 80/20 city/highway
2019-08-09 351.1 mi
565.04 km
10.549 gal (US)
8.78 gal (Imp)
39.93 L
355.5 kWh
$2.459
($25.94 total for this fill)
33.28 mpg (US)
39.99 mpg (Imp)
7.07 L/100 km
3 gal (US)/100 mi
1012.53 Wh/mi
90% city driving. Added new underfloor fill-in piece, in place where underside tow hook used to reside, about 3/4 way through tank. More significantly, altered home-route from afternoon YMCA pick up to incorporate more highway driving even if it was 4 miles longer (same travel time though). Last week of YMCA carpool line. However school is back next week (Thursday and Friday).
2019-07-31 336.9 mi
542.19 km
10.684 gal (US)
8.9 gal (Imp)
40.44 L
360.05 kWh
$2.459
($26.27 total for this fill)
31.53 mpg (US)
37.85 mpg (Imp)
7.46 L/100 km
3.17 gal (US)/100 mi
1068.71 Wh/mi
100% city and extended idle waiting in carpool pickup lanes. First tank below EPA rating. Kind of bummed!

Added underfloor covers ahead of front tire spats to eliminate ugly-aero concavity, as well as asymmetrical middle radiator inlet blocker (asymmetrical inasmuch as I've only added it to one side for the moment).
2019-07-08 252.8 mi
406.84 km
6.167 gal (US)
5.13 gal (Imp)
23.34 L
207.83 kWh
$2.459
($15.16 total for this fill)
40.99 mpg (US)
49.28 mpg (Imp)
5.74 L/100 km
2.44 gal (US)/100 mi
822.11 Wh/mi
Return trip to Charlotte. 100% highway.
2019-07-06 296.8 mi
477.65 km
6.806 gal (US)
5.67 gal (Imp)
25.76 L
229.36 kWh
$2.399
($16.33 total for this fill)
43.61 mpg (US)
52.35 mpg (Imp)
5.39 L/100 km
2.29 gal (US)/100 mi
772.78 Wh/mi
Return trip to Charlotte. Fitted small grill blocker and Toyota Corolla LE Eco front underfloor. 100% highway.
2019-07-05 153.9 mi
247.68 km
4.718 gal (US)
3.93 gal (Imp)
17.86 L
159 kWh
$2.399
($11.32 total for this fill)
32.62 mpg (US)
39.16 mpg (Imp)
7.21 L/100 km
3.07 gal (US)/100 mi
1033.14 Wh/mi
In town driving while in Orlando. 100% city.
2019-07-02 245 mi
394.29 km
5.841 gal (US)
4.86 gal (Imp)
22.11 L
196.84 kWh
$2.589
($15.12 total for this fill)
41.94 mpg (US)
50.41 mpg (Imp)
5.61 L/100 km
2.38 gal (US)/100 mi
803.43 Wh/mi
Trip to Florida. 100% highway.
2019-07-01 218.3 mi
351.32 km
5.177 gal (US)
4.31 gal (Imp)
19.6 L
174.46 kWh
$2.659
($13.77 total for this fill)
42.17 mpg (US)
50.65 mpg (Imp)
5.58 L/100 km
2.37 gal (US)/100 mi
799.18 Wh/mi
Trip to Florida. 100% highway.
2019-06-30 350 mi
563.27 km
10.878 gal (US)
9.06 gal (Imp)
41.18 L
366.59 kWh
$2.499
($27.18 total for this fill)
32.18 mpg (US)
38.63 mpg (Imp)
7.31 L/100 km
3.11 gal (US)/100 mi
1047.4 Wh/mi
90% city, 10% highway. School out.
2019-06-11 357.7 mi
575.66 km
11.106 gal (US)
9.25 gal (Imp)
42.04 L
374.27 kWh
$2.449
($27.2 total for this fill)
32.21 mpg (US)
38.67 mpg (Imp)
7.3 L/100 km
3.1 gal (US)/100 mi
1046.32 Wh/mi
90% city, 10% highway. School out.
2019-05-23 361.3 mi
581.46 km
10.66 gal (US)
8.88 gal (Imp)
40.35 L
359.24 kWh
$2.559
($27.28 total for this fill)
33.89 mpg (US)
40.69 mpg (Imp)
6.94 L/100 km
2.95 gal (US)/100 mi
994.3 Wh/mi
85% city, 15% highway. School's out, so limited highway running.
2019-05-11 343.8 mi
553.29 km
10.013 gal (US)
8.34 gal (Imp)
37.9 L
337.44 kWh
$2.859
($28.63 total for this fill)
34.34 mpg (US)
41.22 mpg (Imp)
6.85 L/100 km
2.91 gal (US)/100 mi
981.5 Wh/mi
Put in 89 octane. Usual mix of 60% city, 40% highway driving. First tank (below) was same.
2019-05-04 368.4 mi
592.88 km
10.8 gal (US)
8.99 gal (Imp)
40.88 L
363.96 kWh
$2.65
($28.62 total for this fill)
34.11 mpg (US)
40.98 mpg (Imp)
6.9 L/100 km
2.93 gal (US)/100 mi
987.95 Wh/mi
First tank, approximation as I apparently threw out the receipt. The gallons used is correct, the distance travelled, which was written on the receipt, is the guesstimate.

I have worked on sealing up the hood as it is lacking in this area. That entailed utilizing weather stripping on the major dimensions. At the moment it's somewhat temporary and I have some better closed cell proper automotive door/hood-type gasket that I think will work on the way.

I've also removed the centerline tow hook as it hangs into the airstream (and weighs about 5 lbs.) and sealed with aluminum tape in the general area.

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


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