Maxima (30-03901) Pro Plus+ 20W-50 Synthetic Motorcycle Engine Oil - 1 Liter Bottle PRO PLUS+ is designed to prolong engine and wet clutch life and offers excellent feel, smoother transmission shifting, easy starts, and improved fuel economy PRO PLUS+ is an ester fortified 100 percent full synthetic 4T engine oil PRO PLUS+ is formulated to exceed JASO MA requirements for 4-cycle engines with integrated wet clutches Balanced Anti-wear and Anti-scuff additive system minimizes engine deposits while protecting critical engine, transmission and clutch components All weather formula meets or exceeds JASO MA, API SL/SJ/SH/SG