usnret
Mar 24, 2014Explorer
diesel fuel question
I am concerned about the diesel fuel I put into my 3500 Ram. It seems like more and more fuel providers like Flying J, pilot,WalMart,and Loves are selling the biofuels. SO far I just find another source like BP, Shell and the like. The Cummins manual recommends no bio fuels greater than 5%. Should I be concerned, what do you do.