Maxima 43901 80W90 Premium Gear Oil - 1 Liter Bottle 80w90 Premium Gear Oil is a petroleum blend for today's high performance shaft driven motorcycle Special high shear strength polymers provide long lasting protection on all gear surfaces Use in all motorcycle applications with separate clutch/transmission fluids Also for motorcycles with hypoid/shaft drive gears Use where API GL4 or GL5 gear lubricants are called for