Engine wear creates particles small enough to pass through conventional oil filters.
These circulating particles create the most wear.

FilterMag captures these particles to prevent them from continuing to circulate in engine oil.

How FilterMag Works

Moving parts operating inside an engine wear and create metallic particles that end up in the circulating oil. Normal oil filters catch particles larger than 25 micron. 

However, smaller particles pass through the filter and continue to circulate in the oil. These particles are small enough to fit between bearing surfaces to continue the wear cycle.

FilterMag’s extremely powerful magnets trap these wear-causing particles on the inside wall of the filter canister removing them from the lubricating oil. 

Removing these particles keeps your oil cleaner and helps to break the wear cycle, increasing the life of your engine.


John Holmes,
Five Time Baja 1000 Winner

“If they did not work, we would not use them.”

We use Filtermags on our Baja winning off-road race trucks because we know they work to protect our engines. We are very particular with our race trucks and quite frankly, if they did not work, we would not use them.—John Holmes

Explore FilterMag’s Products, Features, and Benefits.

Get FilterMag Protection.

FilterMag can protect just about anything you drive or ride—Cars, Pickups, SUVs, Motorcycles, Boats, Watercraft, and ATVs.


Vehicle Drivetrain Lubrication Protection.

FilterMag has products for spin-on oil filters, automatic transmissions, differentials and manual transmissions, and chrome FilterMags for streetrods and American motorcycles.


Complex Science—Simple Solution.

Discover how FilterMag works to protect your engine.


The results speak for themselves.

Vehicle owners are protecting their engines and transmissions with FilterMag.


Customers are convinced.

FilterMag customers write, call, and send photos of their cut open filters once they experience the effectiveness of FilterMag for themselves.


Snap On • Slide Off • Reuse

Just Snap-on a pair of FilterMags. No tools Required,

Reduce Wear • Extend Engine Life • Protect Your Investment


How effective is a filter alone?

Cheap Oil Filter (filters particles as small as 40 microns)
Premium Oil Filter (filters particles as small a 20 microns)
With FilterMag (filters particles as small as 1 micron)