Chemicals & Fluids › Transmission Oil Image 1 of 1 Transmission Oil $16.99 Mineral-based gear oilFormulated specifically for for use in 4-, 5- and 6-speed Harley-Davidson® transmissions or V-Twin models without wet-clutchesSuperior protection from wear, pitting and spallingShear stable formula maintains viscosity and ensure smooth shiftingSurface-active chemistry keeps surfaces free of corrosion, deposits and wearExceeds API GL-5 specifications Quantity: Purchase Added! Mineral-based gear oilFormulated specifically for for use in 4-, 5- and 6-speed Harley-Davidson® transmissions or V-Twin models without wet-clutchesSuperior protection from wear, pitting and spallingShear stable formula maintains viscosity and ensure smooth shiftingSurface-active chemistry keeps surfaces free of corrosion, deposits and wearExceeds API GL-5 specifications