[redbullguy]

Like I said, I'm sure it something to do with the ecm reset but I never came close to 19MPG and now it shows 19.4MPG.

So do me a quick favor. If you haven't done this mod yet, go reset your ecm by disconnecting the neg terminal on the battery for 30mins and drive you truck at a mixed drive of 30-40mph and then jump up to 65-75mph for a total of 65 miles. Let us know what you show.

It didn't cost me a thing to try this and when I get home, I will drive the same route again and see if it changes.

Try it or move on....