Mess with miles to empty?

[Carphunter]

I watched an older vid on fixing the amount the mpg is off on the truck. I figured i'd wait until i'm through 5 to tanks of fuel before messing with it.
but... i've noticed another deal.... the range estimation is way conservative. I need to confirm more tanks... but my last two tanks i believe it was basically off by 100 miles. I was at about 20 gallons for a fill, which means there should have been 6 more gallons in the tank.
Down the road, i think i'd tighten that gap up... i may not go for exact... i like the idea of it being conservative... but 6 gallons is a bit much.

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[Notallthosewhowanderarelo]

Same here, I am waiting to see if it figures itself out.

 

[gtotco]

Mine has always been off by 6 gallons when it says empty - it reads empty at 30 gallons in a 36 gallon tank. Other people in forums have said this has always been the case with F150 extended range gas tanks. Would be interested to see if there is a way to fix this.

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