A magnetic oil filter drain plug and/or an oil filter magnet add one more potential layer of engine protection. Do they work? Residue on the drain plug says yes, but it’s anyone’s guess with the oil ...

I recently saw a car catalog that had an oil-filter magnet for sale. The magnet was placed on the bottom of an oil filter and was strong enough to remove any metal shavings from the oil stream. Is ...

TOM: These things have been around for years, Ron. They certainly don’t do any harm. RAY: They sell magnets that go inside the oil pan, magnets that are built into the oil plug, and magnets, like this ...