AMSOIL Single Remote
By-Pass System
(BMK-11)

Why should you use an AMSOIL Single By-Pass System?

Absolute Protection from Engine Dirt 

Assurance of Analytically Clean Oil

WHY ANOTHER FILTER?  Even the best full flow-filter can't do it all.

Your full flow filter must allow oil to pass through it quickly to keep the engine from starving for oil. Because of this they can only filter out wear particles down to the 20-25 micron range (a human hair is 100 microns). Their relief valves open when the engines demand for lubrication can't be ignored, allowing dirty unfiltered oil to circulate in your engine.

A study completed by Federal Mogul Corp. analyzing over 7000 main and connecting rod bearings concluded that 60% of all engine wear occurs in the 5-20 micron range. 

These microscopic particles closely match the precision clearances between critical engine components such as bearings and rings.

This is why no matter how much you change your current oil and filter, you still are not removing the particles that cause the greatest wear in your engine.

Automobile engines are also susceptible to water formation damage, either from blowby or condensation. This produces corrosive acids that attack the engine, contributing to further friction, wear, debris, and oil degradation.

The AMSOIL Solution-  By-Pass Filtration

Unlike a full-flow filter, the AMSOIL By-Pass Filter is situated outside of the main line of oil circulation; it taps into the line to bleed off and clean only a portion of the oil at a time. 

You still need a full-flow filter, of course, because oil must circulate continuously. But with an AMSOIL By-Pass Filter drawing 10% of your system's capacity, all the oil in a six-quart system will be filtered to analytical purity in about  five minutes, at an average engine speed equivalent to 45 mph.

All dirt particles down to 1/10 of a micron are trapped, and the medium's thirsty cellulose fibers can remove up to a pint of water. 

The AMSOIL Single Remote By-Pass System (BMK-11)

For use in both gasoline and diesel engines. This system taps into the engine either from an oil pressure port or you can tee into where your oil sending unit is. The filtered oil will then be returned to engine via a special 90° fitting installed in the oil filler cap or valve cover. You can also run this into the side of your oil pan with the supplied fitting.

The mount and filter can be installed in any accessible area.

Remote placement of the filtration unit allows larger by-pass oil filters to be used which increases sump capacity - dramatically extending the oil's useful service life and protecting your wise investment in AMSOIL Synthetic Motor Oil. 

The recommended replacement interval for the AMSOIL By-Pass oil filter is 25,000 miles or one year (whichever comes first) or longer using oil analysis on non-turbo gasoline engines. You must still use your full flow filter changed at established maintenance intervals.

Once your AMSOIL Single Remote By-Pass Filter System is installed, you could quite possibly go 100,000 miles or more on one oil change using oil analysis. 

Test samples are easily acquired and here are 3 different ways. Oil analysis testing is common practice with commercial, fleets and heavy-diesel equipment that you can put to use for your benefit as well.

Which one do I order? Use this By-Pass system selection guide.

Which by-pass filter? Use this By-Pass filter selection guide to pick.