I recently bought a 6.0 ford and heard 19-20mpg is attainable with a tuner. I put a sct tuner on it and exhaust and am only getting 17mph on highway non towing at 70mph. Is there other things I can do to help with mileage increase. it has 20" tires

does'nt anyone here have a 6.0 ford

plenty!

if you have taller tires i would say your getting better than 17 mpg..do a fuel consumption test with the miles you rack up with a gps vs you odometer..the taller tires will calculate less miles on your speedo..

Kelly: I think 17 mpg is dam good for a 7000 lb truck. I doubt your gonna get any payback on trying to squeeze 2 mpg outt of it.

Wannabe

These guys can help(maybe);

www.thedieselstop.com

Too many factors, your highway could be bad, windy, hilly, alignment etc? I can tell you an f-250 6.0 with SCT can easily get 20-21mpg at 70-75 here in FL hand calculated.

in my 06 with innovative's tow tune I get 19.5 or so empty running 70-75. I get a little over 20 at the same speeds with the 100hp street tune. If I slow down it gets better. I have never ran the economy tune to test it, it usually stays on the tow tune. That is stock height with just turbo back exhaust and an egr delete.

Hand Calc or computer display?

wow that is great, which egr delete do you have, how much? and is it easy to install, thanks

As a benchmark,my '06 bone stock gets 19 @ 70 mph.

My guess is if you put stock tires on it you will be @ 19 mpg.