Back to the drum brakes. I asked this question here before about lubing or not lubing the pistons(the steel parts that push against the brake shoes) within the cylinders. The closest answer I got was to change fluid often to minimize water absorbed into the fluid, thus rusting the cyl walls. But my concern is the interface between the steel parts and the steel cyl walls where the brake fluid NEVER TOUCHES. When the brakes are adjusted properly, the little rubber pistons in the cyls move very little, so the majority of the steel piston is in bare contact with the bare steel walls of the cyls. The only seal is the external rubber boot on each end of the cyl, and it's not a great seal. So shouldn't I use some anti-sieze or light grease to protect the bare steel sliding surfaces?