I'm trying to get the modified '53 Commander Starliner drivable (thread http://forum.studebakerdriversclub.c...on-my-driveway ).
It has a hydraulic clutch. The master cylinder is dry. I would have filled it with DOT3 brake fluid, but there was a can of hydraulic jack fluid in the trunk which made me think maybe that is what the previous owner(s) used.
What is the harm of filling it with brake fluid if hydraulic fluid had been used before? What about hydraulic fluid if it had brake fluid before?