Quote:
Originally Posted by Clemson88
I use to open Chevy engines and find that varnish. Every owner told me they ran Quakerstate oil.
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I had a similar experience my very first mechanicing experience. In 1971 my Dodge Dart 340 needed a valve job at 60,000 miles. I took off the heads myself and delivered them (one at a time tied to my motorcycle ) to the best shop in Ft. Wolters area.. a guy who had been the motor pool sergeant for Patton in WW2. When I went to pick the heads up he showed me a couple of tablespoons full of granulated charcoal. He had found it behind each of the exhaust valves... He asked me if I had been using Quakerstate or another oil... I had been... He did not know what I had been using... I was shocked he could determine that from the lack of proper burning which left that junk in the head.
I changed to Mobil which is , after much testing , what the Army was using in their vehicles.