Any thoughts on using DOT5 brake fluid for something that sits most of the time. I have used MIL H 5606 (Dextron II) before when I can replace all the seals with viton/butyl. Actually, I doubt you can find natural rubber seals anymore. I want to go DOT 5 in my 45 becouse it will sit 95% of the time. I would go MIL H but it's not DOT approved as a brake fluid.