Product DescriptionIf you?re looking for the ultimate protection for the life of your engine, choose Valvoline Full Synthetic High Mileage with MaxLife Technology. This full synthetic formula is boosted with proprietary MaxLife Technology that delivers maximum engine protection against wear, deposits, sludge and leaks that can lead to engine breakdown. Specifically designed with enhanced anti-wear additives that deliver a thick and durable layer of anti-wear film, added detergents that protect against sludge and deposits, and premium seal conditioners that rejuvenate aging engine seals to help treat and prevent leaks.Amazon.comMotor oil is made from crude oil and is used to lubricate, clean, and cool engines. Types of motor oil include conventional, synthetic, diesel, bio-based, hybrid (blends of conventional and synthetic), and recycled oils. Motor oil varies in weight and viscosity, as well as additives that some manufacturers add to the oil during the refining process. A numerical code system created by the Society of Automotive Engineers (SAE) grades motor oils according to viscosity--the higher the number between 0 and 60, the more viscous (thicker) the oil is. Most consumer motor oils are graded by two numbers, with the first number indicating cold weather (Winter or "W") performance.SAE 5W-30This oil has a weight of SAE 5W-30, meaning it has an SAE viscosity rating of 5 in cold temperatures and a rating of 30 at normal operating temperature. Always check your vehicle's owner's manual to verify that this is the correct weight of motor oil for your vehicle.Full Synthetic OilThis oil is a full synthetic oil, meaning crude oil is not used in making it. Synthetic oil can be used in vehicle engines instead of motor oils refined from crude oil, and often provides superior mechanical performance over traditional motor oil, including increased gas mileage and reduced engine wear at extreme temperatures. Its complex method of production means it can often cost more than conventional motor oil. From the ManufacturerValvoline MaxLife Full Synthetic Higher Mileage Motor Oil - Superior Chemistry Helps Extend Engine Life Keeping your higher mileage car on the road means doing everything you can to protect it from engine breakdown. Like all MaxLife motor oils, our Full Synthetic formula provides a superior chemistry that helps extend engine life by fighting the four major causes of breakdown--leaks, deposits, sludge and friction. However, of all leading high-mileage brands of motor oil, MaxLife Synthetic provides the greatest protection available against oil burn-off and friction. That's because it combines our Multi-Life additive system with a superior full synthetic chemistry to provide you with the ultimate in high mileage protection.Frequently Asked Questions About Valvoline MaxLife Full Synthetic Motor OilWhat is the difference between MaxLife Synthetic Blend motor oil and MaxLife Synthetic motor oil? MaxLife Synthetic Blend combines synthetic and conventional motor oils to improve performance and gas mileage without having to convert to a full synthetic formula. MaxLife Synthetic motor oil is fully synthetic and offers the greatest protection available.I mixed MaxLife Synthetic Blend and MaxLife Synthetic; will this cause a problem? Mixing synthetic and synthetic blended oils will not cause any problems. The oils are compatible.Do I have to wait until my car reaches 75,000 miles before I can use MaxLife? Valvoline MaxLife motor oil is designed for high mileage vehicles of 75,000 miles or more. However, it is perfectly acceptable for use in new or used vehicles with less than 75,000 miles.My owner's manual says to only use motor oil featuring the American Petroleum Institute (API) starburst. I don't see it on the MaxLife bottle. Is it still ok to use in my car? MaxLife is formulated with specialized additives that help fight the problems typically found in higher mileage engines. Beca