What brake fluid can I use with Wilwood brakes?

I'm having a problem with sticking caliper pistons on a truck that has DOT 5 (silicone) in it. Talked to a former brake engineer friend about it and he's heard of 5 not being compatible on occasion, even though it should be, and causing this type of problem. That truck is getting flushed of the 5 and I'll go back with DOT 4 or 5.1 (non-silicone).

Pretty much any non-silicone brake fluid will be compatible with the wilwood juice, but you may lower the boiling point. I'm partial to Castrol LMA.

Recall that non-silicone fluid will absorb moisture, silicone won't. Buying the large bottles of brake fluid is good for flushing a system, but don't leave one opened and partly used on the shelf. It will absorb moisture out of the air. This is not good because the moisture reduces the boiling point.