Quote:

I use either 15w40 Mobil Delvac diesel oil or Shell Rotella 15w40 diesel.Never any problems.

I treid using Mobil Delvac in my 2006 CTD 3500 for several oil changes, I switched back to Delo 400 and Rotella because of the increase motor noise(Lack of lubricant noise ) I would hear on startup coming from my motor when I would let is sit several days between usage, especially in the winter I started using Delvac on the advice of a freind who owned several large H.D. cross country diesel tractors pulling max loads, it was and is, (I think) the cheapest price diesel oil out there I want all my motors to live a long, useful life

Last edited by Cab_Burge; 05/09/14 10:02 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)