Originally posted by cjoe:
I grew up in northern Pa.(where the Quaker State oil refinery is) and worked in the oil fields there during the '70's and into the early '80's. Nobody that I knew would think of using Quaker State oil because of the extra high paraffin content in their motor oil. It was the paraffin build-up that caused the excessive gunk accumulation that the oil was infamous for. I dont know if this is still true today but back then it was gospel.
Quaker State back then wasn't detergent and did cause parafin build up as did Pennzoil. I have been running quaker for 15+ years with no build up. Recently switched to Quaker synthetic in the truck for better lubrication(they say)
