<VV> Iron OXIDE

[N2VZD at aol.com]

I am wondering how much Iron OXIDE , not fuzz iron micro wear particles ,  
would be in a normal motor?
I have removed valve covers with magnets in them , that had a ball of gray  
(not brown?) "fuzz" particles on them. I feel that any of this stuff  
removed from a motor is helping bearing life. Same with Differentials.
 A hard drive magnet is stronger than most of you guys can picture. I  have 
never seen one come off where I put them.
A small hard drive magnet chip will hold heavy tools to the shelf or tool  
box. They hold a full size microphone out of the way in the car , never 
dropping  it. Tons of uses around the shop. They hold the chuck on the drill 
press etc etc  etc. 
I have one in my parts washer pump also.
Regards. Tim Colson