Advanced Formula MOA is formulated with 100 percent synthetic chemistry to protect engine components and fortify all brands of engine oil over extended oil change intervals. Long drain intervals, 10,000 miles (16,000 km) – some as high as 15,000 miles (25,000 km) – are quickly becoming the norm in owner's manuals. Unfortunately, longer time between oil changes puts a lot more strain on engine oil. Extended oil change intervals provide a lengthy incubation period for carbon deposits. Even high-quality synthetic oils will degrade eventually. Unless the oil is fortified with enhanced protection against high heat, premature and hard-to-remove deposits will form on many engine components. The potent detergency and antioxidant system in BG Advanced Formula MOA prevents engine oil degradation and thickening under even the most severe stop-and-go, high temperature driving. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.