I've had a magnetic oil drain plug on my car for years. It collect a really fine metallic dust of which the oil filter may not catch. It's so fine it's like a mud but upon every oil change there is very tiny deposit that I wipe off and it's clean. It's more of an OCD thing than engine saving in my eyes. I believe what the oil filter doesn't catch is so fine that it would take an excessive amount of abuse to create an engine destroying situation.
Against my better judgement, I ordered the 'quick change' plug, but I thought about getting one of those 'rare earth' magnets and sticking it to the outside of the oil pan, near the plug. Then during oil changes, you pop the magnet off and drain the oil. In theory, any 'sludge' should flush out with the oil change.
Clever idea with the magnet but the pans aluminum and it wouldn't stick. I really like the idea of a quick drain type plug. I would want the Q/D to be recessed enough to minimize the chances of it being damaged by foreign objects or road debris (read, inadvertent/unscheduled oil drain). I would also safety wire it in the closed position, for the same reason. Good idea, let us know how it works out
You could probably glue the magnet to the aluminum pan :dunno: but the adhesive would have to be heat, water, and solvent resistant. Joining dissimilar metals can be problematic.
Get a quality oil change valve and I think you're good. But not as good as using a vacuum pump to easily change your oil. Just used mine to change the oil three hours ago.
Maybe something similar to this? Have to be careful with the oil pan threads though. With the stock setup, the drain plug is hollow, and will shear before pan thread damage can occur. With aftermarket, I suggest using a torque wrench. Note the link below only points to the type of valve to show you an example. I am not sure of the thread size, so you will have to confirm which one is correct for your application.
Yep, I gotta get me one. I keep putting it off, but I really need a mityvac.