Is the magnet on the filter effective? Let's take it apart and check
Many motorists have heard that if you place powerful magnets on the oil filter housing, the filtration of oil from steel shavings will improve. Metal particles that are not stopped by the filter element will then be retained by the magnet. This statement is logical, but does it work or is it in practice? For example, let’s disassemble and inspect a filter hung with powerful magnets from a computer hard drive, which has worked on a car for 12 thousand km.
To check the filter hung with magnets, its housing must be opened. It is strictly forbidden to saw it, because then sawdust will get inside, which will be attracted by the magnet, violating the purity and objectivity of the experiment. To open it, you need to place a screwdriver on the top of the filter housing and punch a hole with a hammer. Having expanded it, you should use metal scissors or wire cutters and open the body in a circle like a tin can.At the same time, it is important not to remove the magnets so that all the attracted chips remain in place and do not flow out with residual oil, which will complicate inspection.
After cutting off the top of the filter, the check valve, spring and filter element are removed. Under bright lighting, you can see particles of metal shavings on the inner walls of the case, opposite the magnets. They are very small and resemble sawdust more than drilling shavings. You can notice them due to their number, not their size.
In the filter from the example, pockets of steel shavings attracted to the walls are clearly visible. They are available both on the sides and on the bottom. That is, we can conclude that not only the power of the magnets used is important, but also their quantity. In the example, 3 magnets are installed on the sides and one on the bottom.
As you can see, the magnets on the oil filter really work. Over 12 thousand km, a visible layer of chips formed, which was removed from the lubricant. This significantly reduced the abrasiveness of the oil, which naturally slowed down engine wear. Unfortunately, magnets select only steel particles, while aluminum shavings are stopped only by a filter, so a certain part of it is always present in the oil. Although magnets provide additional purity of the oil, this does not mean that when using them, the lubricant can be changed less frequently.
Required tools:
- flat screwdriver;
- hammer;
- metal scissors or wire cutters.
Disassembling and inspecting the filter
To check the filter hung with magnets, its housing must be opened. It is strictly forbidden to saw it, because then sawdust will get inside, which will be attracted by the magnet, violating the purity and objectivity of the experiment. To open it, you need to place a screwdriver on the top of the filter housing and punch a hole with a hammer. Having expanded it, you should use metal scissors or wire cutters and open the body in a circle like a tin can.At the same time, it is important not to remove the magnets so that all the attracted chips remain in place and do not flow out with residual oil, which will complicate inspection.
After cutting off the top of the filter, the check valve, spring and filter element are removed. Under bright lighting, you can see particles of metal shavings on the inner walls of the case, opposite the magnets. They are very small and resemble sawdust more than drilling shavings. You can notice them due to their number, not their size.
In the filter from the example, pockets of steel shavings attracted to the walls are clearly visible. They are available both on the sides and on the bottom. That is, we can conclude that not only the power of the magnets used is important, but also their quantity. In the example, 3 magnets are installed on the sides and one on the bottom.
As you can see, the magnets on the oil filter really work. Over 12 thousand km, a visible layer of chips formed, which was removed from the lubricant. This significantly reduced the abrasiveness of the oil, which naturally slowed down engine wear. Unfortunately, magnets select only steel particles, while aluminum shavings are stopped only by a filter, so a certain part of it is always present in the oil. Although magnets provide additional purity of the oil, this does not mean that when using them, the lubricant can be changed less frequently.
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