Power steering fluid... Dextron 2 or 3?

[Ade T]

I'm going to change the power steering fluid on my 182 but I can't seem to find a definate answer on whether it should be dextrose 2 or 3?

We all know that on track the fluid has a tendency to boil so wondering if you can buy higher rated fluid?

 

[Ade T]

anyone?