A couple months ago I replaced all my wheel cyls with sor aftermarket parts. I'm well aware of the problems with frozen pistons and adjusters in these damp climates, so based upon some of your experience, I removed the rubber boots and the heavy steel 'pistons', and coated them and the adjuster threads with anti seize. I know the rubber brake cups will be contacting this stuff, and I would feel ok about that except for the fact I recently remembered that I had thinned the old anti seize with a couple good shots of wd 40. It seems I've always heard that petroleum based oils shouldnt be used with brake stuff, just mineral oils. Have I created a problem here? I don't want to take it all apart, but will. Maybe the anti seize is petroleum based anyways? ....Truck is a couple months away from being on the road. Any thoughts?