anyone ever tried it? snake oil? or does it really work?

 

I've used it in vintage race cars. We didn't have a problem and didn't want one which is why we used it. Others say it helps, no one ever said it hurts.

 

It does work but not necessary if you run antifreeze. Antifreeze already has surface tension reducing surfactants that the Water Wetter has too. Some racers dont or cant run antifreeze because of track rules prohibiting its use. This is where Water Wetter fills in. It offers some water pump lubrication and the surfactant effect that antifreeze also does but with out the ethyl glycol.