Just learnin and waitin..
Join Date: Nov 2007
Thanked 1 Time in 1 Post
Ouch. I know this is an old post.. but still.. I have the same gears and tires, and i get 17 on stock and 22 on econo. and the 22 is overall. not just highway. and my trucks leveled. plus some. So idk. Thats kinda weird. I just put a new fuel pump on, the pump was leaking right out of the side of it. and i was averaging 16 with it leaking. But the truck had a reallly strong smell of diesel about it. so i dont think something like that would go unnoticed, But worth checking i'd think
'96 F-250 SC LB 4x4 Auto, DP F5 80 tow high alt 80 econo 120 race, TC lockup switch, ICP mod, 4" Mbrp duals, 3" dp