The AMSOIL Dual Gard By-Pass Oil Filtration System treats oil to ultrafine filtration, which increases engine and oil life and enhances engine performance.

AMSOIL Ea By-Pass Filter elements remove submicron sized particles, keeping oil analytically clean. Clean oil lubricates and cools efficiently because its coefficient of friction is low. It promotes superior piston ring seal, which improves compression and engine power, and reduces blow-by, oil consumption and fuel dilution. Oil lasts longest when clean, since its additives are not consumed by contaminant control.

The Dual Gard system allows the installation of two AMSOIL Ea By-Pass Oil Filter elements, doubling the by-pass filter element changeintervals. The system also makes room for a larger volume of lubricating oil, allowing the oil to run cooler and rest more. Both increase oil durability.