Originally Posted by mark shubert
My old diesel mechanic used to only recommend Marvel Mystery Oil, or the Lucas product.
I'd double-check with him, but he died in a car wreck ~ 10 days ago.


A friend had a truck repair shop and told me about using Marvels Mystery Oil. I passed it on to others that used and with good results.

The Karma bus always has an empty seat when it comes around.- High Brass

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Nobody's right if everybody's wrong