Originally Posted By: daz
Hey, anyone here have opinions as to how effective or not those oil filter magnets are?
i have 9+ years of opinion.
1) it must be a rare earth magnet ie neodymium
2) it will only pull iron. it cannot pull any other metal. not aluminum, not magneseium, not titanium, not uranium235 and certainly not plutonium238. nor will it convert lead into gold.
3) BIGGER is better. size is everything. no really, ask your wife. i double dog dare you!
4) if you have a flywheel that has a magentic pickup AND a shared sump. it will catch a LOT more than some drain bolt will. however, much much harder to clean.