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Detergent oil or non-detergent

From: Boondox
Remote Name:
Date: April 21, 2003


I'm putting my 315 poly back together and should be ready to see if the darned thing actually starts in a couple of weeks! Here's my dilemma. A friend who likes working on those old engines tells me to use non-detergent motor oil exclusively. But there was a bit of crud in the drain pan and also under the valve covers. I wiped away what I could reach, but was thinking a few oil changes at 200 mile intervals would help get the rest I couldn't reach. I was planning on using 30W detergent oil. What's the problem with that stuff? Pete


Last changed: July 19, 2018