...anyone have a 2500 crew cab with the 6.0L in it? If so what kind of gas mileage are you getting?

-Sly

 

02 2500HD CC 4x4 6.0L with 285/75/16's, intake, exhaust, and 93 Octane PCMFORLESS Tune gets 12.5mpg with a mix of city/hwy. Prior to the tune I was getting 11.5 city/hwy. Just got 13.5mpg mostly hwy this weekend.

 

consistent 13 mpg

 

11.5 to 12.5 in the city and 14.5 on the highway, (but that's running 80+ mph and a couple pretty good grades).

 

Best - 15 running 55-60
Worst - 11 running 90+ pulling a boat
87 octane

Consistant around 13.5