Penrite Classic Oil. Penrite Classic Light. 20w60 Classic Light. Classic Light is an SAE 20W-60 oil and can be used to replace SAE 30 and 20W-50 grades. Engine Oil. Specifically made for engines manufactured between 1950 and 1975 including most classic cars, particularly high performance vehicles such as MG, Jaguar, Triumph and Porsche.
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