I Have a brand new 350 mild cam motor in a 1972 Cutlass Holiday Coupe What type of oil should I use in the winter and the summer . Or is it the same year round
Depends on where you store the car during the winter. If it's inside a heated garage, use the same oil year around. If you keep it outside and it gets really cold, a lower viscosity oil will help lube engine at startup. Preferably, the car is not driven in the winter/snow, or is at least kept in a heated garage.
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