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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
My 05 duramax with 207,000 miles still gets 20 on the interstate. And you are right much over 70 makes a big difference. |
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
My 05 duramax with 207,000 miles still gets 20 on the interstate. And you are right much over 70 makes a big difference. |
I have used the diablosport on many vehicles and it is a great tuner for the duramax but we found the edge products was our choice on the duramax little easier for tuning we thought.
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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.
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I will agree the best way to save gas is training your foot to stay out of the loud pedal!
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