[Healeys] brake fluid

[James Shope]

rebuilt a servo and went to buy a quart of castrol.  all they had was the new
synthetic castrol(which went from 6 to 8 bucks).   since i am unfamiliar with
this stuff, passed on it and decided to check with the experts before putting
it in my car. as my book says "use only Castrol brake fluid or your system
will surely perish".  i do not want it to perish or go "tango uniform" using
this new stuff.  TIA  hjim