i run it in all my diesel trucks, i love it. I tried it in my blown street car and i did not like it It, seemed like the 15w 40 was too thin for the engine as soon as the oil got warm. I do mix rotella and normal motor oil on all break ins', then run valvoline racing oil.
Has anyone ever used rotella t oil from shell in there race car.
Rotella T is for Diesel engines NOT gasoline
x2
Side note, on another forum a few months back there was a guy who sent in a bunch of oils to be tested, VR1 Valvoline came back with the best results. I've been using it for years.
I have had excellent results with Brad Penn. This oil comes highly recommended by cam manufacturers for use with flat tappet cams. The oval track alcohol injected guys swear by it.