Hi  Paul.

I  haven't  seen  nor  do  I  know  what
Evans Waterless Coolant  is.    Is  it
thermal  oil?      If  not,  can  thermal  oil
Be  used  as  coolant  in  aircrafts ?

Sam

It is propylene glycol as oppose to regular antifreeze ethlene glycol.

Here is a chart thanks to Bill Schertz.

Not recommended. We want to keep the rotary cool.

Paul Lamar