Maxima V-Twin 100% Synthetic Engine Oil is an ester based motorcycle oil engineered and approved to be used as a multi-compartment oil for H-D® V-Twin engines, transmissions and primaries. Surface-active ester technology lowers operating temperatures, reduces wear, increases film strength and offers extended protection. Maxima Sportster Gear and Chaincase Oil is a high-quality, mineral-based motorcycle gear oil formulated for high-performance transmissions and primary chaincases. Extreme pressure additives and surface active chemistry protect against shock loads and allow smooth shifting under peak loads and RPMs. Ultra-clean detergents protect gears from wear, deposits and allow for trouble-free operation.