I have quite a few of these magnets

I have been collecting these magnets over the years from disposed HD, I have been fascinated by these super strong magnets and use it around the house for attaching stuff to metal table, etc. Now I know a better use for these magnets. Thanks for the info.

Question: Does this mean the oil will last a lot longer, i.e. it will have less metal debris in it so perhaps longer period between oil changes?