Alternative Fuels - Diesel - Additives - LubricantsDiscussion Of Diesel, its Various Additives, Oils, Lubricates & Alternative Fuels EG. Bio-Diesel ect...
my 2004 duramax, with 115,000 miles on it, has begun to smoke while idling. about 40,000 miles ago i upgraded to a bully dog programmer and put it on the fuel efficient setting. mileage improved a couple of miles to the gallon and all has been well. is this something to do with the program or is it something else?
1chota
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