This explaines the missing brake fluid. I have to put brake brake fluid in every other week. Is there a used car dealership fix for this cause were gettin another ody soon and this problem is just one of many:-(Bad brake booster diaphram and leaking master cylinder into the booster. There's a hose that connects to the intake and booster which pulls the fluid and burns it in the combustion chamber. But just one of other things it can be.