Wolf's Head Syn-Pack 100% Synthetic 5W30 Motor Oil is the latest addition to our more-than-a-century-old (1879) line of quality engine oils and lubricants. They are 21st Century oils for tough 21st Century work - working overtime to protect your expensive and prized engine with our exclusive Wolf's Head "Run with the Pack" technology! Syn-Pak Synthetic Oils offer the ultimate in engine protection for both gasoline and diesel engines. Formulated with state of the art additives and 100% synthetic base stocks, Wolf's Head Syn-Pak Full-Synthetic 5W-20 and 5W-30 Motor Oils have been carefully developed to meet the most current API Service Classification. All Wolf's Head Syn-Pak Full-Synthetic Motor Oils are formulated to meet or exceed all new car manufactures' warranty requirements as well as stringent industry standards such as API SM/CF, ILSAC GF-4 and ACEA A1/B1, A5/B5*. These oils are also formulated to exceed the standard for the Thermal Engine Oil Stability test (TEOST MHT) and the Ford M2C 930-A, which supersedes M2C153-H requirements. The special low-phosphorus level design ensures that these superior oils are environmentally friendly and will help to extend the life of the expensive catalytic converters. These high performance full-synthetic oils offer the ultimate in engine protection; especially for engines operating in the most extreme driving and operating conditions and in the worst ambient operating temperatures from the extreme arctic cold to searing desert hear.