I spent countless hours adjusting the DOD settings and it did help alittle but in my G8 I gained 1mpg by turning off DOD completely. I have done the same in many trucks also. IMO unless you live somewhere really flat you will not gain much by playing with DOD.
Wow - I would have never guessed that! Was this result in combination with using COS & commanding a leaner AFR?Originally Posted by minytrker
Mr. P.
Wow - I would have never guessed that! Was this result in combination with using COS & commanding a leaner AFR?
Mr. P.
No, COS on the G8, I havent time to switch it over yet. I think the only reason it gained is because of roads here. If I lived somewhere where it could be in DOD longer I think I could get better mileage with it on. It just doesnt stay on long enough to help around here. I also went to New Mexico with it on and had it off on way back and got better mileage on way back.
I wont ever turn it back on though because with my exhaust it sounds horrible in 4cyl mode, lol.
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