Quote Originally Posted by Ru-one View Post
Thanks for all the input, Concenses seams to be a programmer. I'll be looking into that, trading in right now is not an option, trucks don't get the best mpg any way some improvement is better than none. Happy and safe driving to all.
A programmer may help, indeed. The 5.3 AFM trucks can get up to about 22 MPG highway in stock trim, which would be almost a 50% gain over what you're getting now. If it's not an option, then it's not an option, but it's worth mentioning if you're looking for MPG. Hopefully you can squeeze a few more out of your truck as-is.