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Royal Purple® Max-Cycle® is specifically formulated to exceed the demands of highly stressed engines and transmissions. It is recommended for use in both air-cooled and liquid-cooled 4-cycle engines and is compatible with wet-clutch transmissions.

Formulated with select synthetic base oils and Royal Purple’s proprietary Synerlec® additive technology, Max-Cycle provides improved film strength when compared to the leading synthetic and mineral oil. Its shear stability and oxidation resistance promotes greater performance and protection.

Max-Cycle meets or exceeds API requirements and is rated JASO MA2, the highest wet clutch compatibility rating under the JASO T903:2011 Clutch Friction Test.


  • Greater wear protection
  • Cleaner, more efficient engines
  • Superior rust / corrosion protection
  • Cooler operation and less parasitic power loss

Available Sizes

GradeAvailable SizesPart NumberItem Number
10W-406 x 1-Qt Case06315301069175115
10W-401-Qt. Bottle01315
20W-506 x 1-Qt Case06316301890175115
20W-501-Qt. Bottle01316




PDS Max-Cycle SDS Max-Cycle
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