What motoroil helps keep the engine running cool?

Engine oil does not directly help keep the engine cool. The primary function of motor oil is to lubricate moving parts within the engine, reducing friction and wear. Engine cooling is typically achieved through a combination of the engine's coolant system, which uses a liquid coolant (such as water or a water-based mixture with additives) and a radiator to dissipate heat, and the engine's air intake and exhaust systems, which allow for proper airflow around the engine to help cool it.