550042179 Pennzoil Conventional Motor Oil, 946 mL v416857-v416856-v416855-v416854-v525336-v186807-v186833-v186834-v186904-v186905-v186950-v186952-v186955-v504934-v504935-v504936-v504937-v294789-v294788-v294787-v186959-v186962-v186964-v187032-v187033 1979 Oldsmobile Cutlass Calais 1979

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550042179 Pennzoil Conventional Motor Oil, 946 mL v416857-v416856-v416855-v416854-v525336-v186807-v186833-v186834-v186904-v186905-v186950-v186952-v186955-v504934-v504935-v504936-v504937-v294789-v294788-v294787-v186959-v186962-v186964-v187032-v187033 1979 Oldsmobile Cutlass Calais 1979Conventional Motor Oil is fortified with Active Cleansing Agents? to continuously prevent dirt and contaminants from turning into performance robbing deposits which helps to keep your engine clean and responsive Cleans out up to 40% of sludge in the first oil change and keeps cleaning all the way until your next oil change (based on severe sludge clean up test using SAE 5W30) API ILSAC rating SN GF 5 Meets Ford WSS M2C946 A WSS M2C929 A, Chrysler MS