Quote Originally Posted by Planner View Post
Do you have 4.10 gears? That could explain the difference in mileage with your 2003 (assuming 3.73 rear end).
Yep, and I'm sure you're probably correct.

Quote Originally Posted by mtnrider View Post
^ This.
Don't believe all the people saying they are getting 10000 mpg after a tuner and some small mods. Just isn't happening and they are victims of the common core math system.
Sort of what I'm learning more I read. I don't help my case on mileage at all, but I'm also just not looking for speed and power. I don't tow and I have a car.
I'll need to think on this more. I did a bunch of reading about this for my old truck, then haven't thought about it forever until now. Now I am again, but I think I'll have another expediture here soon that'll eat this "entertainment fundage."