Some of my old Fords don't get on the road every year. I'm still fighting trans problems on my '56 so I thought I'd pull my '29 out of the shed for something different to work on. If they sit for a few years the wheel cylinders seize and the brake fluid turns to gelatin around the cups. My '29 hasn't run since 2008 and as usual the 40's hydraulic drum brakes are all seized. It means pulling the master and wheel cylinders, hone and re***emble. Is silicone fluid any better for long term stabilization? Pete
Silicone is better for long term storage. I had a '57 Ranchero that would set for sometimes 3 years without driving. Every time I had to rebuild at least one cylinder when I took it out of storage. I finally put new wheel cylinders and a master kit in with Silicone fluid. I kept the car for over 20 years after that with no more problems. Silicone is harder to bleed. If you press the pedal to bleed the brakes, pump SLOWLY to try to avoid making unnecessary bubbles in the master cylinder chamber.
I have used silicone brake fluid in my 48 for over 20 years and haven't had any problems with either the master or wheel cylinders.
It sounds like I should give silicone a try. It can't be worse than using the other fluid. Thanks Pete
My only experience with silicone was 20 years ago and I flushed it and never used again. Master Power Brakes has a good explanation on their website as to why it should only be used in museum cars.