[jb92563]

Why every car does not have magnetic drain plugs is beyond me.

I suppose its one of those things a manufacturer can do to make sure the engine does not last too long.

Its like leaving a handful of abrasives in the engine and not doing anything about it.

You pay all that money for clean oil a couple times a year so why would you not also want to filter out all the abrasives out of your engine that never make it to the filter.

Magnetic plugs are cheap compared to replacing bearings or much worse.

Aluminum particles unfortunately are not magnetic and you rely on the filter for those, but aluminum is softer and causes less wear on the harder high load parts so their effect is not as much of a worry.