Mine normally read 24 to 26 and my last tank hand calculated was 20.3

 

I ran around on the stock tires this last week and with no highway miles the overhead was reading 15.5. When I topped it off this morning it actually hand calc'd at 17.3. I'm liking that.....

 

Mine reads good distance, but the mileage is always off by 1.5-2 mpg. Has been that way stock, with 295s and with 315s. Too bad it can't be recalculated or reprogrammed into something useful.

 

I dont even bother looking at it anymore, I just leave it on the Compass/Temp

 

Mine's not. Went one direction today starting from a full tank and while it read 20.9 I got 16. On the way back I again started on a full tank with while it read 21.4 I got 21. It's not even consistently off, it's just OFF. Tank was full for sure both ways at the beginning, and hand calculated.

Shawn

 

Mine is usually right at 10% low compared to hand calcs.

 

Mine fairly consistently reads just over 2 mpg high. It might not be dead on accurate, but it has helped me to change my driving style to fit this pickup!

 

:shrug: mine is pretty accurate.
i reset it every fill and try to beat the last tank.