Only a thin film of oil cushions the fast moving parts in your Engine, Automatic Transmission and Power Steering systems. This film is about 5-15 microns thick (a human hair is about 40-70 microns). It's not the big metal particles that you can see that are causing the damage (tearing away your engine and transmission), but the small particles less than 15 microns that are heat-hardened and circulate freely in the lubrication systems of Engines, Automatic Transmission and Power Steering. These small particles jam within the film of oil and cause Abrasive and Erosive wear, eventually leading to expensive repairs due to component failure. See it in action!

Note: This is a large MPEG file (7Mb) suitable for broadband connections.

Cleans where your filters can't
The transmission sump or spin-on engine filter is designed to filter and provide flow to all of the vehicle's important drive train components. The filter has to remain porous to allow oil to flow, especially in cold conditions before the vehicle reaches operating temperature. (Oil can become the consistency of hand cream in cold conditions.) Engine and transmission filters are nominally rated to only remove particles above 20 microns. Unfortunately, this allows the small damaging particles (below 20 microns) to pass through – into your Engine and Automatic Transmission and Power Steering lubrication system – and jam within the film of oil.

Some manufacturers offer bypass filtration. This requires the installation of an additional fine filter. This systen when installed, only allows a small amount (approx 10%) of the oil to flow into filter and be cleaned. As the name implies, this filter design will BYPASS 90% of the lubrication fluid so it's still distributing the damaging wear metal particles in the vehicle's lubrication system 90% of the time.

With Boss patented Magnetic Filtration, all of the fluid passes directly over the powerful magnet. This guarantees that ALL of the fluid is cleaned ALL the time – continuously removing the damaging metal from the lubrication system as you drive.

Why oil gets dirty - the inside story
In over 100 years of continuous development, we should expect that our vehicle's lubrication system would work better and last longer than ever before. Fluid technology has moved rapidly forward, providing lubrication oils that are far superior to those of 20 or 50 years ago. But even the most expensive oil, if dirty, will cause component damage. Why?

Oil becomes 'dirty' because:

(1) The vehicle's filtration system has remained virtually unchanged over the last 20 years.

(2) Build up of wear-metal (and other contaminants: fibers, seals, dirt, dust, etc.)

Modern powertrain components that are designed to provide high horsepower and torque, simply cannot perform to their optimum with dirty fluid.

Metal the wrecker!
Imagine you are a speck of heat-hardened metal from timing chain or camshaft gear. You are circulated by the pressurized oil through the oil galleries into a variety of critical places in the engine, the hardenned metal speck moves quickly to the camshaft, hydraulic valves, pistons through to the crankcase and bearings. In your journey you are suddenly forced out of the block through a hole that is 1" wide and squeezed under high pressure through a paper membrane (the oil filter). Once inside the filter, the larger particles getting caught, but thousands of tiny particles just like you (around 5-15 microns) flow right through the holes in the paper membrane. You are then sucked back into the engine to repeat this journey of destruction millions of times. This happens because in order to maintain oil flow, the filter membrane is porous to allow oil flow, yet allows small damaging particles through.

Each time you circulate in the engine, you are squeezed into the thin film of oil separating the piston from the bore. But you are a bit too big. The piston slams up at over 100 mph with enormous energy and because you are heat-tempered you are harder than both surfaces so you gouge and tear more jagged particles like yourself, which are then (like you) circulating back through the rest of the engine. The bore of the piston is now scored and compression and performance is lowered. .... You're ready for the next attack.

That is, unless there is a Boss Magnetic Filter installed at the entrance to the spin-on filter Then it's game over for you. You're stuck fast to the powerful magnet - along with millions of other metal particles!

Less metal = Less wear
Oil analysis from your your Engine, Auto Transmission, Power Steering or Hydraulic systems, confirms that over 50% of wear metal contamination is hard ferrous metal, and a very high percentage is in the damaging 5-15 micron range.

This hard iron will tear away at your vehicle's expensive engine and transmission, acting as a catalyst, creating more metal contamination. This super-hard iron forms a grinding paste that destroys the softer metals that are found in engine and camshaft bearings. When you magnetically remove this hard metal contaminant the result is less overall wear and a lubrication system that works at it's very best to protect vital powertrain components.

Magnets are amazing things. In fact you're standing on one. The earth is a huge magnet with North and South poles. Magnets love iron! And, if properly designed and installed, will remove all the hard metal from a fluid system quickly and efficiently. The magnetic field sets up an invisible 'magnetic screen' that captures the iron particles every time the fluid passes over the magnets. Well designed and constructed magnets don't wear out or fail over time so with every pass of your oil it gets cleaner and cleaner. This provides increased performance and greater protection for your vehicle. Whilst your engine and transmission continue to produce metal these particles are captured and held on the powerful magnet and taken from the system with every pass of the oil – and so break the 'Chain reaction of Wear'.

Fleet customers and OEM want the increased performance benefits that can be obtained using Boss Products' Magnetic filters. You too can enjoy the benefits of cleaner oil that will provide improved performance between oil changes and a reduction in costly repairs caused by contamination and wear related failures.

When the oil is cleaner it works better, for longer.

For fleet operators, clean oil means that vehicles can be on the road longer, making money. Laboratory Oil Analysis has shown that with the introduction of Boss Magnetic filters, fluids are kept cleaner, longer and Preventative Maintenance schedules can be increased sometimes by up to 50%.

Benefits of Magnetic Filtration:

• Improved fluid condition. Extended fluid life by reducing contamination.

• Lower preventative maintenance costs. Reduction in parts and labor.

• Extended preventative maintenance schedules.

• Direct cost savings at service intervals.

• Lower infrastructure costs. Less hoists, etc. are required to maintain a PM schedule for a fleet operation.

• Reduce costly repeat repairs. Lower contamination related failures in engine and transmissions, new or remanufactured.

Transmission Repairs for OEM or Aftermarket
OEM approved transmission re-manufacturers and professional rebuilders have been using Boss Magnetic products for more than 10 years.

When the Magnefine filter is installed with the remanufactured transmission, 30% reduction in warranty claims has been reported, in OEM tests.

Product Warranty
All Boss Magnetic products come with a full replacement warranty against faulty workmanship of the product.

Boss Magnetic Filtration products will not affect your new or used car warranty.

In fact, Ford Motor Company and DaimlerChrysler have been supplying the Magnefine product for many years. Your warranty is protected - which simply means it meets the vehicle manufacturer's requirement for oil flow. All Boss Products are tested to ensure they meet or exceed all Original Equipment Manufacturers' flow requirements.

Transmission performance and warranty costs
A study was conducted by a major OEM to measure the effect when using the Magnetic filter on medium duty transmissions. The study compared transmission failures before and after the introduction of the Magnefine In-Line Service Filter.

The results demonstrated:

'A significant reduction in warranty costs'

BEFORE using the Magnefine Magnetic filter:

Of 57 vehicles that had the transmission replaced, 30% (17) then had a repeat failure of the replaced   transmission, leading to additional cost and reduced customer satisfaction.

AFTER the Introduction of Magnefine.

Of 119 vehicles that had the Magnefine installed, after the first transmission failure, none (0%) had a second failure.

To further test the effectiveness of the filter, an additional 26 vehicles (that had been troublesome and had a second transmission) then had the filter installed. The result? No repeat failures (0%).

The author of the study concluded:

"If the in-line filter was available earlier, potentially the initial 17 second repairs could have been avoided. The data analyzed strongly indicates that the magnetic in-line filter is effective in capturing contamination that causes secondary failures ."

High mileage and Time in service analysis

Solenoids. The science of modern transmissions
Modern Electronic Transmissions are controlled by numerous solenoids. These switching devices are controlled by the onboard computer and monitor many aspects of the vehicle's performance to ensure that the transmission works at its best. Accurate electronic signals are critical ­ the difference in just a few milliseconds of control signal can make a huge difference to how the solenoid regulates pressure and therefore how the transmission performs.

Some solenoids will perform up to 600,000 movements in an 80,000 mile period.

Solenoids are contaminant intolerant. If they become jammed then transmission performance suffers dramatically. Contaminants collect in the solenoids where there is little or no flow, and furthermore any magnetic particles will slowly become magnetized and will start to stick to the sides of the solenoid. All the flushing in the world won't get rid of those iron particles or affect the wear they create in the solenoid unless they are magnetically removed from the fluid before it flows into the system.


Magnetic filtration will permanently remove metal particles down to 3 microns or less

Oil filters are porous for oil flow - this lets minute particles back into your engine

Particles trapped in the layer of oil between fast-moving parts, gouge, pit and score machined surfaces and generate more particles with each engine cycle

Wear metal particles in high-pressure fluid act like an abrasive compound -‘sand-blasting’ valves and guides, leading to engine wear and failure

Even the best synthetic oil will damage your engine when it gets contaminated with wear-metal particles

Millions of iron particles are flowing through your oil. Only powerful inline magnetics can remove them

City stop-start traffic is incredibly hard on your engine. Damage is increased during short trips especially when he engine is below operating temperature

Boss magnetics are proven in OEM applications every day

Once through the filter the microscopic particles wreak havoc with critical metal surfaces especially when under load. Click here to see animation (This is a large file 7Mb - broadband connection recommended)

Click here to view the brochures (PDF file) Coming soon!


Metal particles are caught by the magnet