Amsoil

BY-PASS OIL FILTER

The AMSOIL By-Pass Oil Filter provides the best possible filtration protection against wear, oil degradation, rust and corrosion. Working in conjunction with the engine’s fullflow oil filter, the AMSOIL By-Pass Filter operates by filtering oil on a “partial-flow” basis. It draws approximately ten percent of the oil pump’s capacity at any one time and traps the extremely small, wear-causing contaminants and water that full-flow filters can’t remove. The AMSOIL By-Pass Filter typically filters all the oil in the system several times an hour, so the engine continuously receives analytically clean oil.

AMSOIL By-Pass Oil Filtration System

Reduces Wear

Approximately 60 percent of all engine wear is caused by dirt particles in the 5 to 20 micron range. These particles can get inside the precision clearances between engine components and cause severe damage. While full-flow oil filters generally stop contaminants no smaller than 25 to 40 microns, the AMSOIL By-Pass Filter effectively stops particles down to one micron in size, substantially reducing engine wear.

Prevents Oil Degradation, Rust and Corrosion

Water enters motor oil as a combustion by-product or as a condensate. Water contamination of the motor oil can cause extreme engine damage. Water causes metal surface rust and corrosion, which increases friction and wear and deteriorates the close-fitting tolerances between engine components. In addition, water reacts with other contaminants to form corrosive acids and sludge, which also damage metal components. The AMSOIL By-Pass Filter removes water, reducing the risk of oil degradation, engine rust and corrosion.

Extends Oil Drain Intervals

Because the AMSOIL By-Pass Oil Filter removes water and particles down to one micron, it significantly increases the time oil can safely be left in the engine. In fact, engines using AMSOIL Synthetic Motor Oil and an AMSOIL By-Pass Oil Filter routinely show much lower rates of engine wear–even when the oil is used for significantly longer drain intervals–than engines using conventional products and conventional oil drain intervals. That saves motorists time and money and helps protect the environment by creating substantially less used oil.

Dual Remote Filter System

The AMSOIL Dual Remote Oil Filtration System converts an engine’s full-flow oil filter system into a full-flow/by-pass oil filtration system by attaching an AMSOIL Full-Flow Oil Filter and AMSOIL Spin-On By-Pass Oil Filter onto a remote mount. This Dual Remote System provides superior filtration efficiency, increased oil capacity and improved oil filtration accessibility.

AMSOIL Dual Remote Oil Filtration System

AMSOIL By-Pass Filter Replacement Chart

Filters can be used on sumps of larger capacity but then require more frequent replacement. Full details on service life included with filter installation instructions.
Data determined in a non-turbo gasoline engine with AMSOIL 100% Synthetic Motor Oil and AMSOIL Full-Flow Oil Filter. Service life varies in other engines (turbo and diesel) and with other oils and filters.

NOTES:

Special adapters and hardware may be required for some installations.
Contact AMSOIL INC. Technical Service for instructions before installing on vehicles with cast aluminum oil pans.

Applications

Mount	Filter
BMK-11	Any size AMSOIL Spin-On By-Pass Filter Element
BMK-13	Any size AMSOIL Spin-On By-Pass Filter Element
BMK-15 Cummins Diesels (complete with filters)	SDF-26 and BE-100 Spin-On By-Pass Filter Element
BMK-16 International Diesels (complete with filters)	SDF-26 and BE-100 Spin-On By-Pass Filter Element
BMK-17 Duramax Diesels (in GM Pick-ups) (complete with filters)	SDF-26 and BE-100 Spin-On By-Pass Filter Element

Vehicles with sump capacities greater than 15 qts

Mount	Filter
BMK-12 Dual Gard	Any size AMSOIL Spin-On By-Pass (mount requires 2 filters)

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