The maintenance section of this manual explains when you should change your oil and what to look for when checking for wear or damage.Īll service intervals and maintenance operations are based on the parts and accessories expressly approved for your engine. Added benefits and savings occur when you check that the valves, fuel injectors, and oil and cooling circuits are in good working order during oil changes. When performed on a regular basis, changing the engine oil and filters is the least costly way of obtaining safe and reliable vehicle operation.