brake (break?) fluid

[Robert Alexander <ralex@unm.edu>]

Hi,
        Had a minor road emergency a couple of days ago and had to fill my 
brake fluid reservoir with NAPA Dot 4 (recommended by a local LBC type).  
Thought I'd better check it out with the cognoscenti.  Is this stuff 
eating all rubber parts in my brake system, or am I just changing brand 
names?  Would appreciate your input.  I know there was a thead on this 
some time ago, but don't have time right now to research it.  Thanks for 
any help

Bob Alexander
67 +4