Programmers
01-29-2012, 06:07 AM
#11
Senior Member
RACING JUNKIE
Join Date: Jan 2007
Location: Augusta, Ga.
Posts: 2,276
Originally Posted by fast75vega
got the diablosport in the 6.6 duramax in the 4x4 3500 dually crew cab and it works great... in tow mode .... it will pull a frigging house down and with the 125hp program in it... she will just pin ya in your seat 
get 20 to 21mpg in reg mode and 45 to 50 in 125hp mode.. pending on speed. over 70mph it drops of alot
get 20 to 21mpg in reg mode and 45 to 50 in 125hp mode.. pending on speed. over 70mph it drops of alotMy 05 duramax with 207,000 miles still gets 20 on the interstate.
And you are right much over 70 makes a big difference.
01-29-2012, 07:09 AM
#12
Senior Member
RACING JUNKIE
Join Date: Nov 2008
Location: Niagara Falls, NY
Posts: 965
Originally Posted by TheRabbit
Originally Posted by fast75vega
got the diablosport in the 6.6 duramax in the 4x4 3500 dually crew cab and it works great... in tow mode .... it will pull a frigging house down and with the 125hp program in it... she will just pin ya in your seat get 20 to 21mpg in reg mode and 45 to 50 in 125hp mode.. pending on speed. over 70mph it drops of alot
get 20 to 21mpg in reg mode and 45 to 50 in 125hp mode.. pending on speed. over 70mph it drops of alotMy 05 duramax with 207,000 miles still gets 20 on the interstate.
And you are right much over 70 makes a big difference.
i had it as high as 59 mpg but that doing the speed limit and running cruise control.... but what fun is that.... lol
01-29-2012, 07:44 PM
#14
Senior Member
SENIOR BUILDER
Join Date: Mar 2006
Location: Roanoke,Va.
Posts: 122
I've owned alot of trucks, all different brands and if you keep it under 70 on the highway and don't jack rabbit start in town you will get the best mileage. My 2007 Cummins lost 2mpg from 68-72 mph.
