Premium 2 is a clean burning synthetic blend of high performance polyolester, polybutene and petroleum base stocks along with ashless additives that provide outstanding anti-wear/anti-scuff protection and virtually no carbon deposits. NMMA TC-W3 Premium 2’s environmentally friendly formula is extremely “low smoke” and will keep rings and power valves free and operating at peak performance. Exceeds API TC, ISO-E-GD and JASO-FC standards and all OEM requirements.