The new AMSOIL Motorcycle Octane Boost is a fuel additive formulated to increase octane levels in fuel for more powerful and efficient engine operation. It also cleans combustion chamber deposits for increased performance at startup, helping to eliminate engine ping or knock and providing more power at low RPM acceleration. This product typically responds better in lower octane fuel and in fuel that contains ethanol. AMSOIL Motorcycle Octane Boost is primarily formulated for use in four-stroke air or liquid cooled motorcycles manufactured by Harley-Davidson, Yamaha, Honda, Ducati, BMW, Triumph and all other four-stroke applications. This street legal formulation meets the requirements for registration with the Environmental Protection Agency.