Arctic Cat - 1436-435 - OIL,SYNTHETIC-ACX, 0W-40 - 1 GAL Offers maximum engine performance along with unique shear-stable additive formula that protects against engine wear, carbon buildup, and sludge formation. 0W-40 is Wet Clutch Certified for use in Arctic Cat wet-clutch engines. Automotive engine oils do NOT meet requirements for use in Arctic Cat engines equipped with a wet clutch, that is why it is important to use a Wet Clutch Certified oil.