Well have good power but fuel mileage still not the best!!!!

They told me it happens all the time I guess thats there way of an easy fix

One of the shops gave me a newer predator it has lots of power now, just need to see about fuel mileage, they said even though mine was only a year old sometimes they find with the updates you have to have a newer predator. So they took my older on3 for Exchange of the newer one.

Looking to go to older tune for more power and fuel mileage cal id is vxcf4 the newer tunes just ain't doing it for my truck. 05 f250 6.0 u7165 any suggestions? Currently running 9r14

Also with the 9r14 I noticed a difference in shifting, nice firm shifting, but huge difference in rpm range when it shifts its shifting around 4500 to 5000 rpm

Also mechanic says my truck is good no problems!!!

Went back and installed 9r11 gained the 10mph back

Anything come up?

Oh and I also lost 10 mph on my qrt. Mile

I use mostly the economy tune 60 HP, the tow tune I didn't see much difference, and cant use the high performance tune till i get a head bolt kit!!

Cal id# vxcf4hh

I have a 05 Ford f250 6.0. I started out with v9r10 and worked great fuel mileage was up to 24 highway and in town no less than 17mpg since all the latest updates power seems to be there but mileage went way down highway is around 17mpg and town is 14mpg, I had my truck looked over and all turned ...