> > 100% ethylene glycol cools WORSE than 50/50 EG/water mix.

What is the minimum glycol % that ensures corrosion protection? Freezing

is not

really an issue where I live.

Finn

 The back of the Prestone bottle says "Minimum mix:  50/50, Maximum
mix 70EG/30Water"   My Honda owner's manual says only use 50/50
and non-silicate coolant to avoid damage to the aluminum engine.

Bill

 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.
ACRE NL web site.
http://home.earthlink.net/~rotaryeng/            http://www.linux.org