Magnesaver Oil Filter Magnets

Cost effective and efficient Magnetic Filtration Devices

 

The Magnesaver division was acquired by the Donzurly Light Company in 1993.  The business was originally geared toward protecting expensive hydraulic pump and motor systems used in industry. At that time, the Magnesaver was an inline cartridge, hard plumbed into the system. The Donzurly Light Company, has changed direction of the company, by focusing the business on magnetic filtering of lubricating oil in internal combustion engines. Initially, this was limited to fleet services, and that remains the focus of our enterprise. Over the years, the relaxation of proprietary licensing issues, have allowed us to bring the manufacturing cost and customer price, down to a fraction of what it was formerly. Our unique design, also makes our product extremely cost effective when compared with products of similar performance characteristics. It is now practical, for an individual automobile or motorcycle owner, to purchase our product and install it without tools or training, in a matter of minutes. We are currently exploring the potential of that market segment.

On the technical side of things, the Magnesaver device is simply a magnet, a very powerful curved magnet. The magnet is an N42 Neodymium-Boron-Iron type. The power of this magnet and the curve are what make this more effective than our competition. Any magnet attached to an oil filter can be of some benefit, but to be truly effective, the magnetic field needs to be powerful enough and focused enough to reach all the way to the filter pleats.

The best location to place a  magnet on an oil filter, is on it's side. Some filter magnets attach to the bottom of the cannister. The problem with this location, is that oil enters the filter from the top, and then turns to go into the pleats. Most of the oil will never come close enough to a bottom magnet, for that magnet to trap  a significant amount of material. Most oil filters have internal construction, which prevents oil flow at the bottom of the filter canister. What this means is that those who market bottom mount filter magnets, dob't understand how oil filters are constructed, or else they are aware and are selling a product that they know is ineffective.

Magnesaver oil filter magnet comparison

Another type of oil filter magnet marketed, inserts into the filter inself, through the threaded outlet hole. This type will trap particles effectively, but there are some flaws in the design also. These magnets are in a position, where they could potentially restrict oil flow at high speed. We have not tested this, and don't believe it to be a problem, but it is something to consider. A second problem, is that you can only install them when the oil filter is not in place. A third disadvantage is that they are practically impossible to reuse - imagine trying to retrieve a powerful magnet from inside and oil filter with it's dirty oil - no thanks. What we consider to be the worst aspect of this type, is that the oil only comes in contact with the magnet, after it has already gone through the filter pleats, therefore, a lot of material will be allowed to clog the pores of the filter, which equals a shorter life for the filter compared with external types of filter magnets.

This brings us to external magnets which attach to the side of the filter. There are principally three types that we are aware of:

Segmented magnets have the advantage of matching the curve of the filter canister - a good feature. Where they fall short, is that the density of the magnetic field is not very strong, except near the outside of the canister. This is not the case if the individual magnet segments exceed  16mm (about 5/8 of an inch) along the curved portion, We know of no such design currently manufactured.

Magnesaver oiil filter magnet comparison

Flat monoblock magnets, suffer from the fact that the magnet does not match the curve of the canister. This means that the magnetic field is made less effective as most of the magnet does not even contact the canister. In many cases, these require some sort of extra device, to hold the magnets in position.

Inferior oil filter magnet

Curved monoblock magnets, like the Magnesaver, suffer none of the disadvantages of the above types. It has every feature needed to perform very well:

Additionally, the Magnesaver is reasonably priced (pays for itself in reduced engine wear many times over), it installs and removes easily without tools, and can accommodate a range of filter diameters, so you can move it from vehicle to vehicle.

What does the Magnesaver do?

Mostly, the magnesaver removes iron and steel particles from your engine oil. However, it also removes particles which are not magnetic. The following contaminants and more are removed:

These are not elliminated 100%, there is a reduction of these elements of from 28 to 90%, depending on the element in question. We recommend installing 3 Magnesavers per filter. If you analyze the oil on an engine running one Magnesaver and one running three, you will find roughly equivalent reductions of contaminants. So why run three? Well, an oil filter is designed to filter out particles larger than 20 microns. It does not however, catch all of them, though most that escape in one pass, will be captured on a subsequent pass. The problem is though, that a particle as small as 2 microns, can cause engine wear. The Magnesaver captures particles smaller than .4 microns. However, just as the filter itself, does not capture all of the particles larger than 20 microns, the Magnesaver cannot capture every particle either, some get by, go through the lubrication system, only to get captured on a subsequent pass through the filter. By adding extra Magnesavers, you catch more particles on the first pass, so even though that contamination of the oil over all appears to be about the same, the wear is never the less, further reduced. When using 3 Magnesavers, we recommend spacing the evenly around the cannister (120 degrees apart). Some people opt to use more, however, we recommend a maximum of 6, as getting the Magnesavers too close to each other can adversely effect the field qualities. When using 6, we recommend two sets of 3, one nearer the top, the other nearer the bottom. 

You might be wondering how  a Magnesaver can trap non magnetic particles. All elements have an electrical charge to them. This plays into things because where electricity is present so is magnetism. Here is how it works primarily:

The particles suspended in your oil, can conduct electricity. Whenever a conductor passes through a magnetic field, an electrical current is induced. The electric current, produces it's own magnetic field. The fields generated in the particles, make the particles attract each other and even the non magnetic particles end up clustering with magnetic particles, and are drawn toward the Magnesavers.

We hope this basic explanation has served to convince you of the value of Magnesavers. Check with your technical people and ask if all of this makes sense, you will find it does, and because it does, Magnesavers work!

If you have no technical people and are skeptical of a magnet's ability to effect non-magnetic things, there is a simple test you can perform when you receive your Magnesavers. Hold a chunk of aluminum or copper in your hand, and wave a Magnesaver closely above it - you will feel the copper or aluminum twitching in your hand.

What about magnetic polarity?

Some manufacturers of oil filter magnets claim that there is a benefit to having two magnets 180 degrees apart on the filter, with opposite polarity. In theory, this is true. Our inline hydraulic system magnets had this feature. However, when we tested this on oil filters, it had no effect that we were able to detect. It might have some small effect it the filter is less than 65mm in diameter, or if the magnets were over 20mm thick. The magnetic field falls off rapidly with distance, so that in the typical automotive oil filter, this practice is of no practical benefit, but it won't hurt either.

We have the most effective magnetic filter technology that we are aware of at this cost point. You can spend twice as much, and get a magnetic filter which is marginally better, or, install two of ours for their price, and see significant improvement. That is why Magnesavers are the most cost effective magnetic filtering solution available.