I cleaned rust from br cal. pistons many times, brakes were working fine but pistons rust again. Bearing grease would be best to prevent rusting but it can destroy seals. So I decided to use Vaseline because it is less aggressive probably.
Question is: pistons will rust again w/o grease first or some grease destroy seals?
Question is: pistons will rust again w/o grease first or some grease destroy seals?
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