i was talking to the cummins mechanic at a local dodge dealership i have come to trust, and he made the comment that 24v's don't need, nay ... they should not have, fuel additives used in the fuel. he said that additives are ok in the 12v's, but that the 24v's are made to run with existing diesel and don't need the additive. any body out there heard this same thing? ... or something to the contrary? 
