Quote:

Does anyone use diesel oil in their classic?



Yep. 15-40 in the Duster, and in the 79 van. I even run the 10-30 semi syn in my 93 Corolla.

10-30 should be fine for most applications. I had run the 15-40 in the others because I got a killer buy on it for the Cummins which takes 3 gallons.

"The only thing to do for triumph of evil is for good men to do nothing"

"NUNQUAM NON PARATUS!"