[HWYSTR455]

Originally Posted by rohrt

I was told years ago like back in the late 80s that Quaker state and Penzoil were the worst oils out there and if I saw a motor that was coked up it was most likely running one of those oils.


I too used to use Valvoline and the inside of my motors have always been clean.

There is some truth to this, because some 'cheaper' oils back in the day use to use paraffin additives, or that was my understanding. The Olds I have came straight from PA, lived there it's whole life, was a grandma 350 2bbl daily driver for 200k miles, and look what I found when I pulled it....and this pic is after I already cleaned some of it out.

You should have seen what I found when I pulled a rocker cover...you couldn't even see pushrods...

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