78F and sunny here.
Got the Duster brakes checked and bled. As far as I saw, nothing leaking. It was definitely losing most of the fluid right out of the MC cap.. Had some rust around the rim. cleaned that up good and seal still looks ok. It made a mess of the paint on master and a bit of the firewall down behind bubbled up. :BangHead: Siphoned out what was left in MC. Then ran a fresh quart through the system. Spongy brakes no more.
Had the pressure washer handy, so gave a quick blast under the hood to get the brake fluid off. While I had the front wheels off I hit the suspension with pressure washer. Then did the rest of the car. Took it for a test drive - all good.