6.4 Hemi Trucks

Yep I had similar results with a 03-Nothig under 16mpg no matter what u did and again with a 07 nothing ever under 16mpg even pulling 28ft race trailer loaded but move up to a 2012 I presently have and can't touch 14 mpg EVER,What a joke this government **** does to us end users,I never should have got rid of the 07 it had 170,000 on it when i traded it in--Steve