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Message: <blockquote data-quote="Richard L" data-source="post: 541841" data-attributes="member: 52972">Tom,Your transmission would be worn out long before you would overwhelm the magnet.  Too much of the transmission's critical parts would be ground up and stuck to the magnet.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue    :p" loading="lazy" data-shortname=":p" />Also, the metal particles sticking to the magnet also become magnetic and will attract other metallic particles, so the individual particle do not need to actually be touching the magnet, the only need to be touching other particles that have become magnetized. by their proximity to the magnet.While you could flush as well as drop the pan and change the filter every 20K-30K miles, I think that may be a little excessive.  If you really want to be anal, Iâ€™m sure that in a perfectly compulsive world, you would flush the fluid, drop the pan, change the filter, disinfect the entire vehicle and wash your hands after each use. :wacko:  That would insure that your fluid always remained clean and your magnet had no chance of being overwhelmed with metallic particles.  But that would not be very cost effective or practical and would border on compulsive insanity.  :blink:To keep the operating cost down, I prefer to flush the fluid every 25K-30K miles and every 3rd or 4th flush (or every 100K miles), I will drop the pan and change the filter.  None of us can guarantee that we will not have problems with out 5R55E transmission regardless of which method we use to flush/change the fluid.  I am confident that if you follow either method your transmission will not fail due to dirty contaminated fluid or a clogged filter.â€¦Rich</blockquote>

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