Formulated with the latest in lubricant technology, MAXTRON is now full synthetic that provides excellent performance in all automotive gasoline engines. Based on full synthetic base oil that delivers low volatility in lower viscosity oils. MAXTRON full synthetic formulation will deliver exceptional low temperature pumpability as well as superior resistance to high temperature oxidation and volatility in high-performance engines. Expect superior performance in: Four-stroke naturally aspirated and turbocharged gasoline engines. Extended drain operations. Propane engines that require the API Service Classifications listed. Stationary gasoline engines, such as irrigation and standby generators. MAXTRON Full synthetic gasoline engine oils, SAE 5W-20, 5W-30 and SAE 10W-30 exhibit excellent cold flow performance by exceeding the SAE pumpability tests. MAXTRON Full synthetic gasoline engine is designed for long engine life under heavy duty gasoline engine service. New improved performance documentation includes the API Service Symbol, or “donut”, with API Service SM and Improved Energy Conserving certification. These same viscosity grades carry the API Certification Mark, or “starburst” symbol or OEM ILSAC GF- 4 which most new vehicle owner manuals use to signify themotor oil service requirement for the vehicle.