Liquid Power Filter Oil The original formula that set the standard of excellence in air filter oils. Liquid Power starts thin for a deep, even penetration, then dries to even coating, high-tack shield that traps dirt, grit, and dust. Liquid BIO Power :: Biodegradable Air Filter Oil Boost your bike's performance with the first biodegradable air filter oil that works in ALL riding conditions. GREEN Liquid Bio Power prevents dirt, dust, and even water from entering your carburetor. Alcohol base allows easy, even penetration, then dissipates quickly to form a super-sticky, dirt-grabbing shield. Available in Spray or in Liquid form..