Best fuel mileage tune

[Tholt34]

I see they say don't drive the fuel sipper on the highway, y is that? so its only an aroudn town file? If thats the case what probably is the best tune for highway mileage and all around town mileage?



Thanks Tim

[907DAVE]

The 80DD is probably the best tune for MPG's.

[Tholt34]

but what about the fuel sipper should you not run it on the highway?

[907DAVE]

I guess it was geared toward city driving. The shift points were low to try and keep R's down.

[soutthpaw]

I got just over 17 on part of my drive today from St. George Utah to Las Vegas... thats doing 80mph with Cruise set... I have a modified 80HP performance tune that I was running.. your highway MPG's work best with higher ICP and shorter injector pulse width at least that is my understanding from Bill... I also got 15.5 running up the back route from Colorado springs thru Breckenridge in 4wd yesterday in a snow storm which includes going over 11000+ ft pass ...
I think Im gonna have him Live tune my truck at Bandimere this year for a high altitude super cruizer MPG tune and see what comes of it....

[Tholt34]

Alright, I just can't wait to get it to try it out.

[jerseymike47]

Originally Posted by soutthpaw

I got just over 17 on part of my drive today from St. George Utah to Las Vegas... thats doing 80mph with Cruise set... I have a modified 80HP performance tune that I was running.. your highway MPG's work best with higher ICP and shorter injector pulse width at least that is my understanding from Bill... I also got 15.5 running up the back route from Colorado springs thru Breckenridge in 4wd yesterday in a snow storm which includes going over 11000+ ft pass ...
I think Im gonna have him Live tune my truck at Bandimere this year for a high altitude super cruizer MPG tune and see what comes of it....

Wow, I want that kind of mileage!! What mods do you have done to your truck?? What gears are you running ? Thanks :