I have a 1999 24 valve cummins, a friend has one just like mine. He is using slick 50 in his engine and rear axle. he has been telling me that i need to use slick 50 in mine also. I have not used slick 50 in anything so i do not have a good feel about this additive. I have always felt if used good oil you did not need additives. am i correct or is he. any information pro or con will be appreciated.
1999 2500 2x4, 24 valve cummins a/t Q. c. sle with all options except leather. fiberglass running boards, aluminum tool box, cb ham 2 meter really like my truck. much better than the chevy i had
1999 2500 2x4, 24 valve cummins a/t Q. c. sle with all options except leather. fiberglass running boards, aluminum tool box, cb ham 2 meter really like my truck. much better than the chevy i had