i have used teflon for years in motorsport applications//rally cars race cars/police cars etc ,some people think they know it all when it comes to additives, i can only j tell you my experencies with the additives, i have cured many an engine noise with it /g/box problems with it and i was at a test in kincardine power station on a pump that was always running hot and burning out bearings ,the SAID PUMP WAS RUNNING AT 20-25 DEGREES ABOVE SAFE LIMIT, after teflon was added it run 12-15 deg /cooler .i can only advise people about teflon geo