What kind oil for 1969 Oldsmobile 442?

For a 1969 Oldsmobile 442, it is generally recommended to use a high-quality oil with a viscosity of 10W-30 or 10W-40, depending on the climate and driving conditions. If the engine is rebuilt or has been modified, you might consider using a multi-viscosity oil for better protection. Always check the owner’s manual for specific recommendations and consider using an oil that includes zinc additives for enhanced protection of older engines.