Mine always red 1-3mpg higher than what I had calculated, the Edge is just reading what the Ford CPU is sending it.
still though, I told the edge i had 3.55's and 35" tires, you'd think the dumb device would compensate. calculated it myself and get about 12 mpg while the edge tells me i get 23mpg also hate how f150's don't get the fuel level option like other vehicles get. i know i can just look at the gas needle but it'd be cool to see an actual percentage
Thats the reason I got rid of mine. The Edge wouldn't update my tires, so I paid for the Gryphon, still couldn't update tires... Livewire, first time, dead on
And you like it more than your gryphon? That's what I currently have. With no custom tunes for it either.