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SC Kansas | Better check mpg by hand that 13-14 on the dic could be stored avg from whatever the last guy did ( trailer or heavy foot driving). My mpg seems to be greatly affected by wind. I've seem 20mpg hwy pretty easy as low as 13mpg mixed town driving or short hauls with a light trailer. So it can be all over the place. A friend had a case 7230 on his d-max and a dually goose neck in a strong wind and his dic showed 6mpg. PPE is well known on d-max, that's what I have, Diablo is next for hand held tuners. The best is EFI live but requires a laptop and a ton of time. There's a guy claiming 30mpg with EFI live on duamaxforumn.com | |
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duramax diesel fuel milage and chipping?
