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 & 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 chemistryprotect 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.Fits86-present Sportster enginesMeets or exceeds all manufacturers specifications and will not void your new vehicle warrantySportster Synthetic 20W-50 Black Filter Kit contains thefollowing:4 quarts of Maxima V-Twin 100% Synthetic Engine Oil1 quart of Maxima V-Twin Mineral Sportster Oil1 ProFilter Wrench Removal Premium Oil Filter: Black (PF-170B)2 Drain Plug O-Rings