bkmadh Posted April 14, 2015 Share Posted April 14, 2015 I know you shouldn't take the distance to empty reading as gospel but yesterday my car said it had 40 miles to empty, so I put £15 in around 14lts and the car then said it had 148 miles remaining I drove 2 miles home then today I started the car and it was saying 98 miles remaining :/ Sent from my iPhone using Ford OC Quote Link to comment Share on other sites More sharing options...
RyanMitcham Posted April 14, 2015 Share Posted April 14, 2015 It works it out based on your driving! If you are driving 'enthusiastically' then you get less mpg! Drive more economically and the mpg goes up! Quote Link to comment Share on other sites More sharing options...
jcs95whufc Posted April 14, 2015 Share Posted April 14, 2015 I was thinking the same thing...surely my car mileage doesn't equate to the petrol mileage? Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted May 12, 2015 Share Posted May 12, 2015 nah its basically several factors taken into account: > Current Live MPG > Overall average MPG > Temperature > Reported Fuel Level It basically calculates in essence two values adds them and divides them by two (to my knowledge). So for arguments sake have a look at this example: Current MPG: 55 Average MPG: 50 Current Gallons in tank: 10 Miles Per Gallon: (550x10) = 550 (live MPG) + (50x10) = 500 (over the course of the live readout) = 1050 / 2 = 525 miles to empty. Whereas lets say you were now driving with a heavy foot: Current MPG: 20 Average MPG: 50 Current Gallons in tank: 10 Miles Per Gallon: (20x10) = 200 (Live MPG) + (50x10) = 500 (Average MPG) = 700 /2 = 350 Miles to empty. This is why the numbers can fluctuate so wildly, because you have to balance the live and the average to a good high number before you get the best back, and why even if you only put your foot down for a few minutes, you can lose pretty much half of your estimated range. Quote Link to comment Share on other sites More sharing options...
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