Jimmy Six.........If they started pushing Bio-Diesel harder you wouldn't need to worry, it lubes better than the low sulfer crap we get here on the east coast. I work part time for a guy that has a small fleet of Pete's and Volvo's with 60 series Detroits, N14/ISX Cummins, and 3406/C15 Cats........And some of the junk fuel those guys get at truck stops I wouldn't use to start fire to a brush pile. They get 55 gal drums of additive now and are running it year around.........CRS set in and I forget the name of it, but it is red in color.

Sure seems like we change fuel filters more outside of the service schedule than we used to with all the junk fuel anymore. If you haven't already I'd look into FASS's filtering systems for your pickup, If I spent mucho denaro on a diesel pickup, I'd want one of their setups on it.

Love Old '67-'72 GM Pickups! Dare to be different.....Running GM Inliners, GMC's MONSTER V-6's, and real inline power, Cummins, in Central PA.