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By Grampy_Jim:
My preference is to have the ability to inspect the magnet on the drain plug for debris (debris that is sometimes called a piston cooling jet).
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With the factory drain plug, you might get lucky and have the cooling jet attach itself to the magnet. But a good tech wouldn't rely on that method. The magnet isn't powerful enough to pull the cooling jet across the pan, even if it's just a few inches away. Not to mention the baffles and oil pick-up in the way.
The best way to inspect for a cooling jet that has fallen out is to bang on the empty pan after draining the oil, or better yet, probe the inside of the pan with a flexible mechanic's magnet.
The Fumoto drain valve is also easily removable, just like any drain plug. So inspection with a magnet is easy. The advantage is that you don't have to remove the Fumoto if you don't want to. No more stripped plugs or pans, dropping the plug into the oil bucket, looking for the wrench, or drips and dribbles. Once you go Fumoto, you'll never go back.
PSDCool, one additional suggestion that I've seen done...you could have a new nut brazed onto the pan by a skilled welder.