Right. I put in my post "Unless you are using some externa way of measuring miles."

 

I have a BIG MPG discrepancy.

I've been in some PM conversation about this with some other members here, and it seems that I'm possibly a victim of early pump click-off.

I've been averaging mid-low 60's MPG lately and have somewhat modified both my routes I drive for better FE as well as some technique changes, mostly slower accelerations.

TodayI refueled within 500feet of the last bar dissappearing.
I've noticed my car usually has 2-3 gallons left just as the last bar dissappears.

I traveled 721 miles and the pump clicked off at 8.479 gallons.
721 / 8.479 = 85.03 MPG.

85MPG? Somehow I doubt that.

Early this morning I plan to try and pump more in. I've already drove ~20 miles on this tank so it should take less than a third of a gallon before click-off.

If it takes more than that I'll make a note of how much, and then resort to topping off from now on.

It seems like that may be the best way for accurate readings.