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Comment by WalterBright | original | Internal Combustion Engine (2021)
[−]WalterBright · 2026-07-01 Wed 18:47 UTC · link
You are quite right, the oil also serves to transport the heat away.
[−]nablaone · 2026-07-01 Wed 19:23 UTC · link
It's a solvent also.
[−]dotancohen · 2026-07-01 Wed 23:56 UTC · link
Oil also keeps the gaskets (e.g. valve cover gasket, water pump) and seals (front and rear mains) pliable.