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Difference between computer average and actual MPG


GBranyan
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Hi folks! We are enjoying the C-Max after 3 months and already over 4000 miles. I've noticed that the average mpg for the tank tends to run a couple of mpg above what I calculate after filling the tank. For example, on the last tank the computer indicated 46 mpg, our highest so far, but when I filled up it calculated to 43 mpg. Anyone else see this? Thanks!

Edited by GBranyan
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Hi folks! We are enjoying the C-Max after 3 months and already over 4000 miles. I've noticed that the average mpg for the tank tends to run a couple of mpg above what I calculate after filling the tank. For example, on the last tank the computer indicated 46 mpg, our highest so far, but when I filled up it calculated to 43 mpg. Anyone else see this? Thanks!

If you want to fell better check your Odometer it is off by 1.5-2% witch improves MPG's by about .5mpg's or so. :)

 

Paul

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