I'll whip it, whip it good...
Actually Evans could be considered a fire hazard when exposed to open flame, so you bring up a good point. While it WAS recommended for airplanes (lowering boiling point of water due to altitude, Evans being a good thing) the Feds rejected approval based on the potential fire hazard... As in a crash I would guess.
If it gets into the cylinder will it make more power?
What happened with my head gasket leak is I would loose SOME water IF I accellerated hard, the water temp would go up (water lost), but stabilize at higher than normal temp. If I drove real careful, I could get back home. Then, one day, I blew a hose from the high pressure, temp shot through the roof, had to shut it down right there and walk. With low pressure, that hose might not have blown! Hose clamp was loose, my bad,,,