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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.



Thanks for this - when you read the ZDDPlus literature they warn against using diesel oil because of the detergents in the oil.

KD

1970 Cuda 4406