One thing I noticed by accident on my new-to-me '94 BMW 530i is that the fluid in the reservoir for the clutch was unbelievable grungy. There were all sorts of chunks and flakes floating in it. I siphoned out the reservoir and then refilled and flushed about half a quart of DOT4 fluid through the system. I'm just stunned at the difference between before and after. I wasn't really even expecting to notice a difference. I just wanted to get the fluid freshened up.
Before the clutch was just a little on the heavy side but nothing out of the ordinary. Now after pushing through all that nasty fluid the pedal is very light, about as light as a what you'd get from a gas pedal. Is this usual for fresh versus very bad fluid? Does brake fluid viscosity increase noticeably as it goes bad?
Before the clutch was just a little on the heavy side but nothing out of the ordinary. Now after pushing through all that nasty fluid the pedal is very light, about as light as a what you'd get from a gas pedal. Is this usual for fresh versus very bad fluid? Does brake fluid viscosity increase noticeably as it goes bad?