[cougarGT]

2007 GMC 6.6 d-max running for 8 weeks just started to smoke excessive when floored ,code displayed (low fuel rail pressure) changed back to deisel drained all oil out installed new fuel filter added LUCAS FUEL INJECTOR CONDITIONER to fresh tank still smoking ,with more ticking noise then usual,debating taking in for service but don,t want to spend uncessary money but don,t want to drive my truck and make worse if something is really wrong ,any advise welcome,prior to this fuel venture i love this truck and duramax with the allison tranny :i think this DEISEL SECRET ENERGY FUEL is not worth the questionable problem i now expercieiring