During normal engine operation, tiny airborne dirt and internally-generated metal particles elude even the most efficient full-flow oil filters. Wear particles can reduce fuel efficiency through a variety of scenarios.

AMSOIL By-pass Filtration Systems not only limits wear and extends drain intervals, but also may increase engine efficiency.

By-pass Filtration that removes particles smaller than 10 microns directly correlates to reduced engine wear and optimum efficiency. In the article “Clean Oil Reduces Engine Fuel Consumption” on Machinery Lubrication magazine’s website, the author surveys a number of studies that confirm this. Studied over 50,000 miles of service, buses fitted with Cummins six cylinder 8.3 liter turbocharged engines achieved 2 to3 percent gains in fuel efficiency while operating with six-micron by-pass filtration. A second study of a six-cylinder diesel engine saw dramatic improvements after installing a by-pass filter rated 75 percent efficient at six microns: oil contamination dropped 98 percent, friction decreased 2.9 percent and fuel economy increased 5 percent.

AMSOIL Ea By-pass Filters use a synthetic/cellulose sandwiched media. The inner layer of the element is composed of a highly efficient cellulose media covered with a full-synthetic media outer layer. These filters remove 39 percent of soot contaminants less than one micron. Soot removal efficiency can increase approximately 10 to 14 percent when EaBP filters are used in conjunction with a standard full-flow filter.

The dual remote mount is designed to make filter and bypass filter changes easy and convenient. It accomplishes this by using a remote filter mount that is easily installed in an accessible area of the engine compartment. The mount is connected to the engine block by two oil lines and a special spin-on oil filter adapter.

The spin-on adapter replaces the engine’s full-flow filter, using machined thread adapters that allow the dual remote system to fit about 98 percent of all car and light truck applications in the United States. Ports in the adapter provide both a source of oil and a place to return it to the engine.

AMSOIL Ea By-pass Oil Filters remove particles less than one micron, keeping the oil free of virtually all wear-causing particles. The dual remote system combines both full-flow and by-pass filtration on one convenient mount. With this system, all the oil is super-filtered, and more often.

Oil with dispersant additives will generally keep soot in the range of 0.002 to 0.5 microns in suspension; detergent additives prevent the build-up of sludge and act as an acid neutralizer, keeping soot in the range of 0.5 to 1.5 microns in suspension. These anti-wear additives work by providing a sacrificial chemical-to-chemical barrier. As the amount of soot suspended in the oil increases, the performance of these additives decreases. The Bypass Filter will help this problem.

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. It is called bypass filtration because the oil flows from the bypass filter back to the sump and bypasses the engine. This continual process will eventually make all of the oil analytically clean, reduces long-term wear and can extend drain intervals.