you can make a similar gadget like installing a loud speaker magnet at the end cap of the oil filter or a strip of flexible magnet like the one you can get out of refrigerator door around the oil filter. there had been cars with magnetic drain plug. you can also purchase after market magnetic drain plugs. this however, only takes care of ferrous debris. the worst enemy of engine lubrication is still sludging from overcooled engines and prolonged service intervals



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