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Fuel log graph
Efficiency log for: Basic Miata - 2006 Mazda Miata Touring
  • Lifetime Fuel Economy: 30.2 mpg (US), 7.8 L/100 km, 36.2 mpg (Imp)
  • 90-day Fuel Economy: 30.9 mpg (US), 7.6 L/100 km, 37.1 mpg (Imp)
  • 3-tank Fuel Economy: 30.1 mpg (US), 7.8 L/100 km, 36.2 mpg (Imp)
  • EPA Combined Rating / % over rating: 24 mpg (US) / 28.9% (based on 90-day fuel economy)
  • Total fills: 61
  • Average cost per gal/L: $3.89 per gal (US); $0.00 per L (price data entered for 61 fill/s)
  • Average cost per fill: $32.87
  • Average distance cost: $0.13 per mi. / $0.08 per km
  • Total fuel used: 515.29 gal (US), 1950.6 L
  • Total distance traveled: 15552.5 mi. / 25029.3 km
  • Total cost: $2,004.85
  • Total fuel saved vs. EPA: 132.7 gal. (US) / 502.3 L
  • Total saved: $516.2 (based on avg. cost per gal./L)
  • Average tank distance: 255 mi. / 410.3 km
Fill date Distance Fill amount Price Fuel Economy Details
2012-09-15 272.2 mi
438.06 km
9.253 gal (US)
7.71 gal (Imp)
35.03 L
311.83 kWh
$4.339
($40.15 total for this fill)
29.42 mpg (US)
35.3 mpg (Imp)
8 L/100 km
3.4 gal (US)/100 mi
1145.59 Wh/mi
Roundtrip to Thunderhill Raceway for 24 Hours of Lemons (not LeMans)!
2012-08-27 286.1 mi
460.43 km
10.005 gal (US)
8.33 gal (Imp)
37.87 L
337.17 kWh
$4.259
($42.61 total for this fill)
28.6 mpg (US)
34.35 mpg (Imp)
8.22 L/100 km
3.5 gal (US)/100 mi
1178.5 Wh/mi
Lots of city, plus a quick trip to Saratoga (on the other side of the bay).
2012-08-13 304.4 mi
489.88 km
9.382 gal (US)
7.81 gal (Imp)
35.51 L
316.17 kWh
$4.339
($40.71 total for this fill)
32.45 mpg (US)
38.98 mpg (Imp)
7.25 L/100 km
3.08 gal (US)/100 mi
1038.67 Wh/mi
Last day of my summer internship commute!
2012-08-07 281.5 mi
453.03 km
8.176 gal (US)
6.81 gal (Imp)
30.95 L
275.53 kWh
$4.09
($33.44 total for this fill)
34.43 mpg (US)
41.34 mpg (Imp)
6.83 L/100 km
2.9 gal (US)/100 mi
978.79 Wh/mi
Return trip from Monterey; 55mph on Hwy 1
2012-08-05 233 mi
374.98 km
7.402 gal (US)
6.16 gal (Imp)
28.02 L
249.45 kWh
$3.999
($29.6 total for this fill)
31.48 mpg (US)
37.82 mpg (Imp)
7.47 L/100 km
3.18 gal (US)/100 mi
1070.6 Wh/mi
Monterey, CA
2012-08-03 198.7 mi
319.78 km
6.518 gal (US)
5.43 gal (Imp)
24.67 L
219.66 kWh
$3.979
($25.94 total for this fill)
30.48 mpg (US)
36.59 mpg (Imp)
7.71 L/100 km
3.28 gal (US)/100 mi
1105.49 Wh/mi
2012-08-02 299.9 mi
482.64 km
9.51 gal (US)
7.92 gal (Imp)
36 L
320.49 kWh
$4.179
($39.74 total for this fill)
31.54 mpg (US)
37.87 mpg (Imp)
7.46 L/100 km
3.17 gal (US)/100 mi
1068.66 Wh/mi
2012-07-27 250.9 mi
403.78 km
8.192 gal (US)
6.82 gal (Imp)
31.01 L
276.07 kWh
$3.939
($32.27 total for this fill)
30.63 mpg (US)
36.79 mpg (Imp)
7.68 L/100 km
3.27 gal (US)/100 mi
1100.32 Wh/mi
2012-07-24 261.6 mi
421 km
8.397 gal (US)
6.99 gal (Imp)
31.79 L
282.98 kWh
$4.179
($35.09 total for this fill)
31.15 mpg (US)
37.42 mpg (Imp)
7.55 L/100 km
3.21 gal (US)/100 mi
1081.73 Wh/mi
2012-07-19 261.2 mi
420.36 km
8.65 gal (US)
7.2 gal (Imp)
32.74 L
291.51 kWh
$3.899
($33.73 total for this fill)
30.2 mpg (US)
36.28 mpg (Imp)
7.79 L/100 km
3.31 gal (US)/100 mi
1116.04 Wh/mi
2012-07-16 220.2 mi
354.38 km
7.303 gal (US)
6.08 gal (Imp)
27.64 L
246.11 kWh
$4.059
($29.64 total for this fill)
30.15 mpg (US)
36.22 mpg (Imp)
7.8 L/100 km
3.32 gal (US)/100 mi
1117.67 Wh/mi
2012-07-05 218.5 mi
351.64 km
7.07 gal (US)
5.89 gal (Imp)
26.76 L
238.26 kWh
$4.099
($28.98 total for this fill)
30.91 mpg (US)
37.1 mpg (Imp)
7.61 L/100 km
3.24 gal (US)/100 mi
1090.43 Wh/mi
2012-07-02 235.8 mi
379.48 km
8.162 gal (US)
6.8 gal (Imp)
30.9 L
275.06 kWh
$4.099
($33.46 total for this fill)
28.89 mpg (US)
34.68 mpg (Imp)
8.14 L/100 km
3.46 gal (US)/100 mi
1166.5 Wh/mi
2012-06-28 218.4 mi
351.48 km
7.147 gal (US)
5.95 gal (Imp)
27.05 L
240.85 kWh
$4.159
($29.72 total for this fill)
30.56 mpg (US)
36.71 mpg (Imp)
7.7 L/100 km
3.27 gal (US)/100 mi
1102.79 Wh/mi
2012-06-25 305.7 mi
491.98 km
10.106 gal (US)
8.42 gal (Imp)
38.26 L
340.57 kWh
$4.199
($42.44 total for this fill)
30.25 mpg (US)
36.31 mpg (Imp)
7.78 L/100 km
3.31 gal (US)/100 mi
1114.07 Wh/mi
2012-06-19 253.4 mi
407.81 km
8.71 gal (US)
7.25 gal (Imp)
32.97 L
293.53 kWh
$4.299
($37.44 total for this fill)
29.09 mpg (US)
34.95 mpg (Imp)
8.08 L/100 km
3.44 gal (US)/100 mi
1158.37 Wh/mi
Drove through SF; more stop-and-go than in my usual commute
2012-06-14 223 mi
358.88 km
7.638 gal (US)
6.36 gal (Imp)
28.91 L
257.4 kWh
$4.239
($32.38 total for this fill)
29.2 mpg (US)
35.06 mpg (Imp)
8.06 L/100 km
3.43 gal (US)/100 mi
1154.26 Wh/mi
2012-06-11 222.1 mi
357.44 km
7.384 gal (US)
6.15 gal (Imp)
27.95 L
248.84 kWh
$4.499
($33.22 total for this fill)
30.08 mpg (US)
36.11 mpg (Imp)
7.82 L/100 km
3.32 gal (US)/100 mi
1120.4 Wh/mi
2012-06-07 299.3 mi
481.68 km
9.988 gal (US)
8.32 gal (Imp)
37.81 L
336.6 kWh
$4.499
($44.94 total for this fill)
29.97 mpg (US)
35.97 mpg (Imp)
7.85 L/100 km
3.34 gal (US)/100 mi
1124.62 Wh/mi
2012-06-03 257.3 mi
414.08 km
8.252 gal (US)
6.87 gal (Imp)
31.24 L
278.09 kWh
$4.379
($36.14 total for this fill)
31.18 mpg (US)
37.45 mpg (Imp)
7.54 L/100 km
3.21 gal (US)/100 mi
1080.8 Wh/mi
Albany, CA
2012-06-01 300.3 mi
483.29 km
10.35 gal (US)
8.62 gal (Imp)
39.18 L
348.8 kWh
$4.119
($42.63 total for this fill)
29.01 mpg (US)
34.84 mpg (Imp)
8.11 L/100 km
3.45 gal (US)/100 mi
1161.51 Wh/mi
Wendover, UT
2012-06-01 114.1 mi
183.63 km
3.954 gal (US)
3.29 gal (Imp)
14.97 L
133.25 kWh
$3.969
($15.69 total for this fill)
28.86 mpg (US)
34.68 mpg (Imp)
8.15 L/100 km
3.47 gal (US)/100 mi
1167.84 Wh/mi
Elko, NV
2012-06-01 251.2 mi
404.27 km
8.474 gal (US)
7.06 gal (Imp)
32.08 L
285.57 kWh
$4.119
($34.9 total for this fill)
29.64 mpg (US)
35.58 mpg (Imp)
7.94 L/100 km
3.37 gal (US)/100 mi
1136.82 Wh/mi
Fernley, NV
2012-05-31 208.4 mi
335.39 km
6.928 gal (US)
5.77 gal (Imp)
26.23 L
233.47 kWh
$3.819
($26.46 total for this fill)
30.08 mpg (US)
36.12 mpg (Imp)
7.82 L/100 km
3.32 gal (US)/100 mi
1120.3 Wh/mi
Rock Springs, WY
2012-05-31 217.3 mi
349.71 km
8.088 gal (US)
6.74 gal (Imp)
30.62 L
272.57 kWh
$3.689
($29.84 total for this fill)
26.87 mpg (US)
32.24 mpg (Imp)
8.76 L/100 km
3.72 gal (US)/100 mi
1254.35 Wh/mi
Laramie, WY. Lots of uphill driving (peak at 7000 feet).
2012-05-31 164.9 mi
265.38 km
5.661 gal (US)
4.71 gal (Imp)
21.43 L
190.78 kWh
$4.099
($23.2 total for this fill)
29.13 mpg (US)
35.01 mpg (Imp)
8.08 L/100 km
3.43 gal (US)/100 mi
1156.94 Wh/mi
Ogallala, NE
2012-05-30 259.6 mi
417.79 km
8.95 gal (US)
7.45 gal (Imp)
33.88 L
301.62 kWh
$3.599
($32.21 total for this fill)
29.01 mpg (US)
34.85 mpg (Imp)
8.11 L/100 km
3.45 gal (US)/100 mi
1161.86 Wh/mi
West Des Moines, IA
2012-05-30 304.3 mi
489.72 km
9.946 gal (US)
8.28 gal (Imp)
37.65 L
335.18 kWh
$3.949
($39.28 total for this fill)
30.6 mpg (US)
36.75 mpg (Imp)
7.69 L/100 km
3.27 gal (US)/100 mi
1101.48 Wh/mi
Kearney, NE
2012-05-29 113.2 mi
182.18 km
3.743 gal (US)
3.12 gal (Imp)
14.17 L
126.14 kWh
$3.879
($14.52 total for this fill)
30.24 mpg (US)
36.28 mpg (Imp)
7.78 L/100 km
3.31 gal (US)/100 mi
1114.31 Wh/mi
2012-04-19 211.8 mi
340.86 km
7.727 gal (US)
6.43 gal (Imp)
29.25 L
260.4 kWh
$4.009
($30.98 total for this fill)
27.41 mpg (US)
32.94 mpg (Imp)
8.58 L/100 km
3.65 gal (US)/100 mi
1229.46 Wh/mi
2012-04-15 296.8 mi
477.65 km
9.289 gal (US)
7.73 gal (Imp)
35.16 L
313.04 kWh
$3.999
($37.15 total for this fill)
31.95 mpg (US)
38.4 mpg (Imp)
7.36 L/100 km
3.13 gal (US)/100 mi
1054.72 Wh/mi
2012-02-19 294.6 mi
474.11 km
10.129 gal (US)
8.43 gal (Imp)
38.34 L
341.35 kWh
$3.669
($37.16 total for this fill)
29.08 mpg (US)
34.95 mpg (Imp)
8.09 L/100 km
3.44 gal (US)/100 mi
1158.69 Wh/mi
2012-01-16 287.4 mi
462.53 km
10.397 gal (US)
8.66 gal (Imp)
39.36 L
350.38 kWh
$3.549
($36.9 total for this fill)
27.64 mpg (US)
33.19 mpg (Imp)
8.51 L/100 km
3.62 gal (US)/100 mi
1219.14 Wh/mi
2011-12-26 302.3 mi
486.5 km
9.455 gal (US)
7.87 gal (Imp)
35.79 L
318.63 kWh
$3.519
($33.27 total for this fill)
31.97 mpg (US)
38.41 mpg (Imp)
7.36 L/100 km
3.13 gal (US)/100 mi
1054.02 Wh/mi
2011-12-23 180.7 mi
290.81 km
5.73 gal (US)
4.77 gal (Imp)
21.69 L
193.1 kWh
$3.259
($18.67 total for this fill)
31.54 mpg (US)
37.88 mpg (Imp)
7.46 L/100 km
3.17 gal (US)/100 mi
1068.62 Wh/mi
Iowa City, IA
2011-12-23 146.8 mi
236.25 km
5.116 gal (US)
4.26 gal (Imp)
19.37 L
172.41 kWh
$3.179
($16.26 total for this fill)
28.69 mpg (US)
34.46 mpg (Imp)
8.2 L/100 km
3.49 gal (US)/100 mi
1174.46 Wh/mi
Lincoln, NE
2011-12-22 258.3 mi
415.69 km
8.851 gal (US)
7.37 gal (Imp)
33.5 L
298.28 kWh
$3.399
($30.08 total for this fill)
29.18 mpg (US)
35.05 mpg (Imp)
8.06 L/100 km
3.43 gal (US)/100 mi
1154.78 Wh/mi
Elm Creek, NE
2011-12-22 310.6 mi
499.86 km
9.813 gal (US)
8.17 gal (Imp)
37.15 L
330.7 kWh
$3.159
($31 total for this fill)
31.65 mpg (US)
38.02 mpg (Imp)
7.43 L/100 km
3.16 gal (US)/100 mi
1064.71 Wh/mi
Evanston, WY
2011-12-22 187 mi
300.95 km
6.46 gal (US)
5.38 gal (Imp)
24.45 L
217.7 kWh
$2.999
($19.37 total for this fill)
28.95 mpg (US)
34.76 mpg (Imp)
8.12 L/100 km
3.45 gal (US)/100 mi
1164.17 Wh/mi
Pine Bluffs, WY. Speed limit out here is really high.
2011-12-22 211 mi
339.57 km
7.938 gal (US)
6.61 gal (Imp)
30.05 L
267.51 kWh
$3.399
($26.98 total for this fill)
26.58 mpg (US)
31.92 mpg (Imp)
8.85 L/100 km
3.76 gal (US)/100 mi
1267.82 Wh/mi
Rawlins, WY
2011-12-21 254.9 mi
410.22 km
9.852 gal (US)
8.2 gal (Imp)
37.29 L
332.01 kWh
$3.409
($33.59 total for this fill)
25.87 mpg (US)
31.09 mpg (Imp)
9.09 L/100 km
3.87 gal (US)/100 mi
1302.51 Wh/mi
Elko, NV. Probably the fastest driving of the trip.
2011-12-21 241.6 mi
388.82 km
7.629 gal (US)
6.35 gal (Imp)
28.88 L
257.1 kWh
$3.479
($26.54 total for this fill)
31.67 mpg (US)
38.05 mpg (Imp)
7.43 L/100 km
3.16 gal (US)/100 mi
1064.16 Wh/mi
Fernley, NV. First fillup of a road trip.
2011-12-20 233.2 mi
375.3 km
9.426 gal (US)
7.85 gal (Imp)
35.68 L
317.66 kWh
$3.659
($34.49 total for this fill)
24.74 mpg (US)
29.71 mpg (Imp)
9.51 L/100 km
4.04 gal (US)/100 mi
1362.18 Wh/mi
MUCH more city driving than usual.
2011-12-13 288.4 mi
464.13 km
9.352 gal (US)
7.79 gal (Imp)
35.4 L
315.16 kWh
$3.899
($36.46 total for this fill)
30.84 mpg (US)
37.02 mpg (Imp)
7.63 L/100 km
3.24 gal (US)/100 mi
1092.79 Wh/mi
2011-12-07 313.8 mi
505.01 km
11.091 gal (US)
9.23 gal (Imp)
41.98 L
373.77 kWh
$3.759
($41.69 total for this fill)
28.29 mpg (US)
34 mpg (Imp)
8.31 L/100 km
3.53 gal (US)/100 mi
1191.11 Wh/mi
More back road and canyon road driving than usual. Less highway than usual.
2011-12-02 318.7 mi
512.9 km
9.1891 gal (US)
7.65 gal (Imp)
34.78 L
309.67 kWh
$3.939
($36.2 total for this fill)
34.68 mpg (US)
41.66 mpg (Imp)
6.78 L/100 km
2.88 gal (US)/100 mi
971.67 Wh/mi
2011-11-30 304 mi
489.24 km
10.711 gal (US)
8.92 gal (Imp)
40.55 L
360.96 kWh
$3.699
($39.62 total for this fill)
28.38 mpg (US)
34.08 mpg (Imp)
8.29 L/100 km
3.52 gal (US)/100 mi
1187.37 Wh/mi
2011-11-21 304.2 mi
489.56 km
10.33 gal (US)
8.6 gal (Imp)
39.1 L
348.12 kWh
$3.779
($39.04 total for this fill)
29.45 mpg (US)
35.37 mpg (Imp)
7.99 L/100 km
3.4 gal (US)/100 mi
1144.38 Wh/mi
2011-11-09 303.8 mi
488.92 km
10.266 gal (US)
8.55 gal (Imp)
38.86 L
345.96 kWh
$3.969
($40.75 total for this fill)
29.59 mpg (US)
35.53 mpg (Imp)
7.95 L/100 km
3.38 gal (US)/100 mi
1138.78 Wh/mi
2011-10-30 286.9 mi
461.72 km
9.284 gal (US)
7.73 gal (Imp)
35.14 L
312.87 kWh
$3.899
($36.2 total for this fill)
30.9 mpg (US)
37.12 mpg (Imp)
7.61 L/100 km
3.24 gal (US)/100 mi
1090.52 Wh/mi
2011-10-27 269.7 mi
434.04 km
8.296 gal (US)
6.91 gal (Imp)
31.4 L
279.58 kWh
$3.999
($33.18 total for this fill)
32.51 mpg (US)
39.03 mpg (Imp)
7.23 L/100 km
3.08 gal (US)/100 mi
1036.63 Wh/mi
2011-10-21 301.5 mi
485.22 km
9.767 gal (US)
8.13 gal (Imp)
36.97 L
329.15 kWh
$3.999
($39.06 total for this fill)
30.87 mpg (US)
37.08 mpg (Imp)
7.62 L/100 km
3.24 gal (US)/100 mi
1091.71 Wh/mi
This tank was 87 octane, refueled with 89 octane. Spent a lot of time sitting in traffic during this tank.
2011-10-18 276.7 mi
445.31 km
8.333 gal (US)
6.94 gal (Imp)
31.54 L
280.82 kWh
$3.779
($31.49 total for this fill)
33.21 mpg (US)
39.87 mpg (Imp)
7.08 L/100 km
3.01 gal (US)/100 mi
1014.89 Wh/mi
This tank was 87 octane, refueled with 87 octane.
2011-10-14 245.9 mi
395.74 km
7.999 gal (US)
6.66 gal (Imp)
30.28 L
269.57 kWh
$3.759
($30.07 total for this fill)
30.74 mpg (US)
36.92 mpg (Imp)
7.65 L/100 km
3.25 gal (US)/100 mi
1096.26 Wh/mi
This tank was 87 octane, refueled with 87 octane.
2011-10-11 294.7 mi
474.27 km
9.508 gal (US)
7.92 gal (Imp)
35.99 L
320.42 kWh
$3.759
($35.74 total for this fill)
30.99 mpg (US)
37.21 mpg (Imp)
7.59 L/100 km
3.23 gal (US)/100 mi
1087.28 Wh/mi
This tank was 87 octane, refueled with 87 octane.
2011-10-06 245.6 mi
395.25 km
7.161 gal (US)
5.96 gal (Imp)
27.11 L
241.33 kWh
$3.759
($26.92 total for this fill)
34.3 mpg (US)
41.21 mpg (Imp)
6.86 L/100 km
2.92 gal (US)/100 mi
982.61 Wh/mi
This tank was 87 octane, refueled with 87 octane.
2011-10-02 209.6 mi
337.32 km
6.128 gal (US)
5.1 gal (Imp)
23.2 L
206.51 kWh
$3.799
($23.28 total for this fill)
34.2 mpg (US)
41.1 mpg (Imp)
6.88 L/100 km
2.92 gal (US)/100 mi
985.26 Wh/mi
This tank was 87 octane, refueled with 87 octane. Mostly highway. Started using 0W-20 oil slightly before this tank began.
2011-10-01 270.7 mi
435.65 km
8.41 gal (US)
7 gal (Imp)
31.84 L
283.42 kWh
$3.799
($31.95 total for this fill)
32.19 mpg (US)
38.67 mpg (Imp)
7.31 L/100 km
3.11 gal (US)/100 mi
1046.99 Wh/mi
This tank was 87 octane, refueled with 87 octane. Mostly highway.
2011-09-29 237.4 mi
382.06 km
8.523 gal (US)
7.1 gal (Imp)
32.26 L
287.23 kWh
$3.799
($32.38 total for this fill)
27.85 mpg (US)
33.44 mpg (Imp)
8.44 L/100 km
3.59 gal (US)/100 mi
1209.9 Wh/mi
This tank was 87 octane, refueled with 87 octane. Lots of stop-and-go on this tank. Hopefully an all-time low.
2011-09-23 320.4 mi
515.63 km
10.304 gal (US)
8.58 gal (Imp)
39 L
347.24 kWh
$3.799
($39.14 total for this fill)
31.09 mpg (US)
37.34 mpg (Imp)
7.56 L/100 km
3.22 gal (US)/100 mi
1083.77 Wh/mi
This tank was 91 octane; refueled with 87 octane.
2011-09-20 307 mi
494.07 km
9.4819 gal (US)
7.89 gal (Imp)
35.89 L
319.54 kWh
$4.099
($38.87 total for this fill)
32.38 mpg (US)
38.91 mpg (Imp)
7.26 L/100 km
3.09 gal (US)/100 mi
1040.85 Wh/mi
This tank was 91 octane; refueled with 91 octane. Mostly highway.

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


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