[mwebb]

i did test magnets on the fuel line
years ago
on my 1988 VW Scirrocco , they do not have any effect at all on either fuel economy or fuel trim
both were measured before and during

the OP is lying or fibbing or misrepresenting that which he knows to be false
pick one
i am unimpressed as well but willing and very capable of proving that the magnets the OP is claiming are improving his FE in reality do NOT improve FE

the OP is guilty of attempting to perpetrate a HOAX on the readers of this very forum - but then again , almost all of the readers knew that

Originally Posted by johnlvs2run

If you want something to be done, then roll up your sleeves and do it yourself.
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Well if that's all you've got then I'm not impressed.
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As far as I'm concerned, the OP uses the magnets and they do work for him, just like some FE devices work for some and not others. Perhaps you attached the magnets the wrong way, perhaps they don't work with your particular car, perhaps the nut needs major adjustment etc etc.