02 7.3 gas mileage

[vms305]

after installing the cold air and using my hypertech max energy programmer im getting 20-21 highway and 15-16 town...

I know that the truck gauge is just estimated but this is what its reading. I have all terrain tires as well

[stetson]

I'd like to know how you guys get that kind of milelage.I have a 2000 7.3 that average 13 -15 and if I drive at 2000 rpm I may get 17 mpg.This truck is maintained as it's supposed to be. It's chipped and that's done nothing but helped with power and shifting.
I've also used fuel additives.Any ideas?

[Dave]

Originally Posted by vms305

after installing the cold air and using my hypertech max energy programmer im getting 20-21 highway and 15-16 town...

I know that the truck gauge is just estimated but this is what its reading. I have all terrain tires as well

The minute you put the hypertech on you threw the mpg display in the truck off. Hand calculate it and see what you come up with

[Dave]

Originally Posted by stetson

I'd like to know how you guys get that kind of milelage.I have a 2000 7.3 that average 13 -15 and if I drive at 2000 rpm I may get 17 mpg.This truck is maintained as it's supposed to be. It's chipped and that's done nothing but helped with power and shifting.
I've also used fuel additives.Any ideas?

What gearing do you have in your rear end and tire size those to things make all the difference