Quote:
Originally Posted by y=mx+b
I reset it with every tank I fill up, and its consistently 2-3 MPG higher than actual. Even when accounting for the slightly taller than stock 265/70/17s
Its more useful for relative MPG. The display going up or down means the MPG is increasing or decreasing, but the number itself can't be taken at face value.
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This.
I reset mine every tank. I keep track of my mpgs in the Fuelly app, I have kept track of every single one of the 137k miles I’ve put on it so far. And I have my speedometer calibrated for bigger tires.
The dash mpg is super consistent actually, it’s just high. It’s between 1.8-2.3 mpgs every single time.
So it’s still a very functional gauge, for me, I just take 2 mpg off what it says and I have a good idea of what I’m getting that tank.
Accurate? No. Consistent and reliable? Yes.
