Royal Purple Max-Cycle Motorcycle Engine Oil Royal Purple Max-Cycle is specifically formulated to significantly improve motorcycle, ATV and snowmobile engine (and transmission) performance. It''s recommended for use in both air-cooled and liquid-cooled 4-cycle engines and it''s compatible with wet-clutch transmissions. Formulated with select synthetic base oils and Royal Purple''s proprietary Synerlec additive technology, Max-Cycle provides unparalled film strength that is up to 400 percent stronger than the leading synthetic and mineral oil. Its shear stability and oxidation resistance promote greater performance and protection. Synerlec greatly reduces engine wear - including ring, cylinder and bearing wear. It continuously adheres to metal surfaces, even after shutdown, to provide instant protection at startup until a full fluid film can be established. Max-Cycle exceeds API / JASO new warranty requirements and is compatible with other mineral and synthetic motor oils. No flushing is necessary prior to use. It''s available in 10W30, 10W40 and 20W50 viscosities. Royal Purple''s Performance Advantages: * Greater Wear Protection * Greatly Extends Oil Drain Intervals * Increases Horsepower * Increases Torque * Provides Superior Rust / Corrosion Protection * Saves Fuel and Reduces Exhaust Emissions * Keeps Engines Clean * Mates Engine Parts * Will Not Harm Seals Try Royal Purple today and Feel the Differenc