08-31-2018, 12:01 PM

SRR

Ultimate Warrior

Join Date: Sep 2005

Location: San Diego, California

Posts: 1,265

Agreed

Quote:

Originally Posted by Chief of the 60's

There is no way running diesel oil would ruin engine bearings. Fact is, most high end engine builders use a diesel oil, like Rotella, for break-in oil.

I put a long block in a customers 81 Chevy 4x4 SBC several years ago and all he runs is 15W40 Delo. The engine sounds good and the OP is great. One of my friends runs it in all his older HFT cars, no issues.

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