There's something to be said about using a 50/50 mix. No one talks about waters reaction and it's cooling capabilities. I ran 60 psi of boost, sometimes more, and the only thing that kept me in the safe zone was 50/50.
If this were and extreme pressure/high dollar build I would be taking a different stance/approach to this. However, it is a janky Chy-nah turbo on a JY engine made with left over parts...