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Author Topic: Castrol 20-50 oil  (Read 3407 times)

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Offline ccv-19

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Castrol 20-50 oil
« on: September 16, 2024, 11:39:44 AM »

 A look inside my Olds 442 engine after 25 years of using Castrol 20-50 oil.
The old oil in cylinders was added to keep cylinders from rusting. The pistons
were only wiped off with a rag. Did a valve job on engine.
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