408 Break-In Diesel Oil Weight

I was using the Valvoline Premium Blue 15w-40 in the car and in my Cummins truck. I didn't like the nasty smell the Rotella gives off. But I recently switched to Brad Penn Synthetic Blend 10w-30 in the car cause it has the ZDDP additive package that has been taken out of all the other oils. Brad Penn oil is Kendall GT-1 renamed. Brad Penn bought the old Kendall Refinery in Bradfrod Pa. The Brad Penn oil even has the same green color that the Kendall GT-1 had. I changed to their HD diesel oil this last change too. You can't buy it in a store. You need to get it from a dealer in your area and they will ship it to your house or you can pick it up from them.

http://www.bradpennracing.com/