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Fuel log graph
Efficiency log for: o=o> the box - 1997 volvo 850
  • Lifetime Fuel Economy: 27.6 mpg (US), 8.5 L/100 km, 33.2 mpg (Imp)
  • 90-day Fuel Economy: 27.6 mpg (US), 8.5 L/100 km, 33.2 mpg (Imp)
  • 3-tank Fuel Economy: 28.1 mpg (US), 8.4 L/100 km, 33.7 mpg (Imp)
  • EPA Combined Rating / % over rating: 21 mpg (US) / 31.5% (based on 90-day fuel economy)
  • Total fills: 8
  • Total fuel used: 69.61 gal (US), 263.5 L
  • Total distance traveled: 1922.4 mi. / 3093.8 km
  • Average tank distance: 240.3 mi. / 386.7 km
Fill date Distance Fill amount Price Fuel Economy Details
2009-07-19 196.7 mi
316.56 km
6.675 gal (US)
5.56 gal (Imp)
25.27 L
224.95 kWh
29.47 mpg (US)
35.38 mpg (Imp)
7.98 L/100 km
3.39 gal (US)/100 mi
1143.62 Wh/mi
I had my new volvo mpg gauge installed for this tank. It read 28.7mpg. This was mixed driving with ac most of the time
2009-07-04 206.6 mi
332.49 km
7.345 gal (US)
6.12 gal (Imp)
27.8 L
247.53 kWh
28.13 mpg (US)
33.76 mpg (Imp)
8.36 L/100 km
3.56 gal (US)/100 mi
1198.11 Wh/mi
mud flaps off for entire tank, just driving to work and around town
2009-06-30 418 mi
672.71 km
15.25 gal (US)
12.7 gal (Imp)
57.73 L
513.93 kWh
27.41 mpg (US)
32.91 mpg (Imp)
8.58 L/100 km
3.65 gal (US)/100 mi
1229.5 Wh/mi
200 miles with bike rack on the roof
2009-06-21 232.2 mi
373.69 km
7.869 gal (US)
6.55 gal (Imp)
29.79 L
265.19 kWh
29.51 mpg (US)
35.45 mpg (Imp)
7.97 L/100 km
3.39 gal (US)/100 mi
1142.08 Wh/mi
hilly highway at 70mph with a/c most of the time
2009-06-18 144.9 mi
233.19 km
5.207 gal (US)
4.34 gal (Imp)
19.71 L
175.48 kWh
27.83 mpg (US)
33.39 mpg (Imp)
8.45 L/100 km
3.59 gal (US)/100 mi
1211.04 Wh/mi
really hot outside, so A/C most of the time. Only turned car off at stoplights half of the time. Shifted between 1700-1950 rpm almost all the time; however, I pressed the accelerator enough so that i really wast accelerating very slowly at all. at least 70% of driving was city. only a few short highway trips
2009-06-12 289 mi
465.1 km
10.5 gal (US)
8.74 gal (Imp)
39.75 L
353.85 kWh
27.52 mpg (US)
33.07 mpg (Imp)
8.55 L/100 km
3.63 gal (US)/100 mi
1224.39 Wh/mi
During this tank there were a couple repairs to the car that required periods of idling. Also fuel filter replacement (loss of a measurable amount of fuel)
2009-05-15 123 mi
197.95 km
4.66 gal (US)
3.88 gal (Imp)
17.64 L
157.04 kWh
26.39 mpg (US)
31.7 mpg (Imp)
8.91 L/100 km
3.79 gal (US)/100 mi
1276.75 Wh/mi
75% of driving in city with traffic. I maximized the distance that I coasted. I accelerated moderately (not slowly) as mentioned in a thread; however, during acceleration I shifted around 2100rpm. This technique minimized the time that I spent getting my 3200+ lb car up to speed and allowed me to coast or maintain speed for longer distances.

This is a very significant improvement over previous city driving- accelerating slowly and letting rpms climb to 2500 I couldnt even break 20mpg.
2009-05-12 312 mi
502.12 km
12.1 gal (US)
10.07 gal (Imp)
45.8 L
407.77 kWh
25.79 mpg (US)
30.98 mpg (Imp)
9.12 L/100 km
3.88 gal (US)/100 mi
1306.96 Wh/mi
50% interstate driving @ 70mph. Started experimenting with more serious fuel saving techniques.

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


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