AMSOIL Bypass Oil Filters provide maximum filtration protection against wear and oil contamination. Working in conjunction with the engine’s full-flow oil filter, AMSOIL Bypass Filters operate by filtering oil on a “partial-flow” basis. They draw less than 5 percent of the oil sump’s capacity at any time and trap the extremely small, wear-causing contaminants that full-flow filters can’t remove. AMSOIL Bypass Filters typically filter all of the oil in the system several times an hour, so the engine continuously receives analytically clean oil.

Higher Efficiency

AMSOIL Bypass Filters have an absolute efficiency of 98.7 percent at two microns. This highly efficient filter provides exceptional filtration performance, removing all the particles known to reduce engine life.

Superior Construction

AMSOIL Bypass Filters have a marine powder-coated exterior and an anti-corrosion coated base plate to provide excellent corrosion protection. AMSOIL Bypass Filters feature a nitrile HNBR gasket, a silicone anti-drain valve and proprietary high efficiency media.

Increased Oil Capacity

The increased fluid system capacity and filtration life provide improved oil cooling and ensure that equipment constantly runs on highly filtered oil. Engine efficiency is increased, providing extended engine life.

Soot Removal

The high-efficiency bypass filter element also removes soot particles two microns and larger, eliminating abrasive wear from soot agglomeration.