I use some silicon grease that I bought in a motorbike shop in Rinku near Osaka airport.
IIRC, though, it had a fairly low temperature range (128C?)on the (lost) packaging, and may not actually be brake grease, though the counter guy said:-
HAI! Brakkuu-gris-UU!
which was a bit encouraging.
A translation by my GF's I-phone software says its for greasing the neck rings on fishing Cormorants that stop them from swallowing the fish. Cool.
Seriously. That's what it said. Gained In Translation, I assume.
I didn't want to use anti-seize since I'm not sure the oil in it is rubber compatible, so I rub the pins with aluminium foil which puts some aluminium dust on them, then I wrap them in PTFE threadseal tape.
Seems to work.