New By-Pass Systems Now Available

From the head and hoses to the fittings and filters, AMSOIL Bypass Systems offer top-of the- line protection for customers

New Single-Remote Bypass Filter systems are now available for Ford* 6.0/6.4L and GM* 6.6L applications. The systems include all components necessary for installation (including parts, hose, Ea® Bypass Oil Filter [EaBP90] and installation instructions), providing increased convenience and value for customers .

Bypass Filtration Basics

Bypass oil filtration features a secondary filter with the purpose of eliminating nearly all contaminants from engine oil. Bypass filters have high capacities and eliminate much smaller particles than full-flow filters. They reduce engine wear and increase oil volume, but their high efficiencies mean they also have higher restriction and must be used in conjunction with a full-flow filter.

How it Works

Bypass filters operate by filtering oil on a “partial-flow” basis. They draw approximately 10 percent of the oil pump’s capacity at any one time and trap the extremely small, wear-causing contaminants that full-flow filters can’t remove. Bypass filters have a high pressure differential, causing the oil to flow through them very slowly and allowing for the removal of smaller contaminants, including soot. It is called bypass filtration because the oil flows from the bypass filter back to the sump, bypassing the engine. This continual process eventually makes all the oil analytically clean, reduce long-term wear and can extend oil drain intervals.


Significantly Extended Engine Life
The majority of engine wear is caused by particles in the 5-20 micron range. Because AMSOIL Ea Bypass Filters effectively remove contaminants down to two microns, engines receive the ultimate in wear protection. Less engine wear keeps the engine in better physical condition, extending its life.

Efficient Small-Particle and Soot Removal
The high-efficiency AMSOIL Ea Bypass Filter element is 98.7 percent effective at removing particles down to two microns, helping extend engine life. It is also a very effective soot-removal device.

Reduced Maintenance Costs
AMSOIL Bypass Systems provide a dramatic increase in engine protection, helping avoid costly repairs associated with engine wear.

Improved Oil Cooling
By installing an additional filter, the engine system has the capacity to hold more oil. With increased oil capacity, the oil filtration system contains more fluid through which it can disperse heat from the engine. This allows the engine and the oil to run cooler.

Extended Drain Intervals
AMSOIL Ea Bypass Filters can help users extend their oil drain intervals. AMSOIL recommends using oil analysis when extending oil drain intervals.

Outstanding Protection at an Affordable Price

Competing single-remote bypass systems designed for Ford*, GM* and Ram* turbo-diesel vehicles range in price from $250 to more than $700, with an average largely over $450. AMSOIL Single-Remote and Dual-Remote Bypass Systems are very competitively priced. Competing heavy-duty bypass systems range in price from $650 to more than $850. The premium quality AMSOIL Heavy-Duty Bypass System (BMK30) and DUAL-GARD Bypass System (BMK22) are very competitively priced.

Easy Installation

AMSOIL Bypass Oil Filtration Systems are relatively easy to install and easy to maintain. Do-it-yourself installation instructions are provided.

Durable Construction/

AMSOIL Bypass Systems and Ea Bypass Filters are built tough to withstand the most severe operating conditions.


With decades of experience in bypass filtration, we have continually upgraded our bypass systems and components to remain at the forefront of the industry. AMSOIL Bypass Systems and components are tested and proven in the field. Competing components may not be manufactured to our strict quality standards, we do not recommend using them with AMSOIL Bypass Systems.