This has been discussed over the years. e.g.:
Brake Fluid Discussion

I chose DOT5. It's nice not to worry about spilling paint remover on the floor when topping up the master cylinder.

Last edited by Gord&Fran; 06/07/2021 11:43 PM.

Gord 🇨🇦
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1954 1/2 ton 235 4 speed