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Re: Onboard MPG Calculators--Where Do They Get The Gallons #s ?
Posted to Technical Theory Forum on 5/29/2011

My 2011 Lexus resets the estimated miles to empty as soon as I start it up after fueling. I assume it uses the average mpg from the previous tank to begin the calculation then modifies the estimate based on current driving conditions.

I assume the fuel level... Login to read more.