Re: What's the best oil for a old tired engine?
"As far as "breaking of gunk and plugging your pick-up"....what? If the engine is at the point that your worried something might "come loose" and plug your pick-up, you're ready for a rebuild."
Sorry to offend...
Throw six quarts of Royal purple in a 100,000 mile Penzoil motor, drive it for a couple hundred miles, then get back to me.
I have not seen his motor, but have rebuilt quite a few nasty ones. I have a couple of favorites... Tranny fluid added to remove gunk, and diesel fuel added to do the same! Both engines, the pickup was plugged solid.
It was just a "worst case warning", just to be nice.
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