Engine oil is designed specifically for the high heat, high pressure, and high speed environment inside an engine crankcase. Your engine will remain protected as long as the oil is present, and changed regularly. Just as important as engine oil condition, is the engine oil level. Over time, heat and age will degrade the various rubber, cork, or silicone seals that keep oil in the engine. Even if the engine is not
burning oil, a severe leak can cause a dangerous low oil condition.