Originally Posted by skab75
I have a 2000 sport 4x4 auto which I just put a 2006 block and heads out of a total that only has 42,000 miles on it but nomatter what I do I can't get anymore than 14mpg HELP (p.s stock tire size)
My 2008 XLT 4x4 (4.0L V6) (I know, not correct forum, but anyway)
Is supposed to get around 14mpg, which I think they are all rated for. If you think 14MPG is not good enough on a Ford Truck, you may have not planned this out properly. 14 MPG for a truck owner is like being offered a position in heaven next to God, I only get around 12.9MPG and I have a heavy foot.
Do not modify the engine, timing, cams, exhaust, intake, or anything else
Do not use power programmers
Do not use those fake fuel magnets
Do not use fuel savers
My best use of fuel saver, and it saves only little per tank, is the STP Fuel Injector Cleaner and STP Fuel Treatment. Also works well is Seafoam.