I was going to flush out the lines on our '62, because the brake fluid looks like it might be 40 years old. But after the warnings I got about running Mobil 1 in a 235 engine and the leaks I might cause, I'm wondering if I should do it.

If I put fresh brake fluid in all the lines am I going to start having leaks? Like in the wheel cylinders?

Thanks in advance.

Then you will know the truth, and the truth will set you free.

- Jesus -