lowlyfe
+1y
Back when mine was a daily driver the valves used to freeze up on me and let the car air up so I kept a small pipe in the trunk and a light tap on each of them was all it took to free them up.
I wanted to use some of the air brake anti-freeze but was worried about the valves not sealing shut when I needed them to, but now that I think about it, semi trucks wouldn't use the stuff if their brakes depended on it lol.