Picture of Magnetic Oil Drain  Bolt. (Transaxle or crankcase)
We all love our cars. they say that the cost of maintaining a car is higher than the cost of living. With the current cost of oil, I can see why. Rubber hoses, plastics, lubricants all come from petroleum.

I'm going to to show you a simple way to help increase your engine and manual transmission life by magnetizing the drainbolt.

Step 1: Gather your materials.

Picture of Gather your materials.
You will need.

Drain bolt from your oil pan
Super glue - Make sure you get a super glue rated for metal and magnets. Krazy glue does have a product that will bond metal extremely well.
small neodymium magnet (I used 8mm x 3mm magnets)
Sand paper or steel wool
Degreaser (You can use dish soap in a pinch)
SurferGeek8 years ago
You might want to try something like JB Weld rather than superglue as it's likely to not stand up to hot oil.
what about welding the magnet to it
Heat damages neodymium magnets
oh i never knew that
Saga8 years ago
Buy a bunch of neodymium magnets and tape them around the oil filter. This way you don't have to worry about the magnet rattling loose from the oil plug and ending up swimming around your crankcase(which could end disasterously.) It's also possible to perform this without draining the oil and it's possible to use many, many more magnets than could ever fit on the end of a drain plug.
but some cars do not have an external oil filter
JerryMopar Saga7 years ago
I totally agree with this!! ALL of the engines oil goes through the filter at some point in time, with more frequency than the oil would pass the drain plug. Plus, when you change the filter out, all the metal flakes stay INSIDE the filter and get THROWN AWAY with the filter.
carpespasm Saga8 years ago
that's a very good idea, i'll probably do that next oil change. thanks a lot!
modio8 years ago
Why and how does this work?
Gamer917 modio6 years ago
I was going to ask the same thing
jim48507 years ago
Sorry but i don't think neodymium magnets are a good idea. They may be as strong as buggery and a wonder at normal temperatures but they hate heat in excess of 80°C, it will weaken them or worse. Better to use old fashioned ferrite jobs, they should be good for 300° or at least more than oil in an engine should even reach.
Trans_Am8 years ago
Even the most basic transmission will have magnet in the drain pan, so that makes this kind of redundant, doesn't it?
germanpickle (author)  Trans_Am8 years ago
You would think. But I've encountered Drain plugs in vehicles that did not have magnets on them. Remember, this is a manual transmission not an automatic one. This is also a good feature for on a crankcase drain plug. This car has a magnetic drain plug for the cranckcase oil already.
It's an extremely good idea, and I've actually tossed a magnet in the oil pan on some of my cars, and if you ever need to drop the oil pan, you'll see just how much debris it can hold. (Potential damaging debris "not" going back in your engine.)
My standard shift has magnets in them... hell, even my father's old '84ish Mercedes 240 diesel had a magnet in there... just not on the plug itself :P
Trans_Am8 years ago
Forgot to mention, the metal shavings will collect in the magnet, preventing them from causing further harm to your precious gears.