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Being a ASE auto mechanic I've changed a lot of fuel pumps.. And in the "modern" era every pump I have changed is immersed in fuel... Even if you run it dry.. The pump is installed in housing that holds fuel, like a cup.. And the sediment, theory in my opinion is myth too. All pumps have a very very fine mesh that the fuel most pass through, usually pretty long, think of a tube made of mesh and closed on each side with the pump in the middle.. Very very hard to clog.. Engineers have designed these parts to "idiot" poof them from things that happened back in the day... Think of it.. If you just designed a car that can have a 100k mile warranty then you have to have these parts last.. Not burn out because the owner runs it low on fuel, same as if you put the low octane in it won't hurt the engine, just won't perform at peak performance
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