You must flush it as I do know that mixing sets up a very undesirable chemical reaction. I have read this somewhere(I think on one of my motorcycle forums). With what to flush, I do not know. Probably depends what you wish to end up with. May be require a lot of flushing to clean out all residue from wheel cylinders. Some may suggest that they need to be disassembled but I doubt that you must go that far. A pressure bleeding system would be great. I purchased one a couple of years ago that has an adapter to fit my B and my other cars. A flushing every 2 or 3 years is a good idea anyway so this will give you a good excuse to do it now. Roger Schaaf ----- Original Message ----- From: <mjraguse@xxxxxxx> To: <L-FORWARDLOOK@xxxxxxxxxxxxx>; <Chrysler300@xxxxxxxxxxxxxxx> Sent: Thursday, May 26, 2005 8:48 PM Subject: [Chrysler300] Dot 4 mixed with Dot 5 Silicone >I have just discovered that one of my cars which I thought had Dot 3 or 4 > actually has silicone and last month I topped off the master cylinder with > Dot 4. > I am sure I am not the first to do that so what is the prognosis? I can > syphon off what is in the master cylinder but by now all sorts of mixing > action > has occurred. > > Marv > > > [Non-text portions of this message have been removed] > > > > > To send a message to this group, send an email to: > Chrysler300@xxxxxxxxxxxxxxx > > For list server instructions, go to > http://www.chrysler300club.com/yahoolist/inst.htm > Yahoo! Groups Links > > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> In low income neighborhoods, 84% do not own computers. At Network for Good, help bridge the Digital Divide! http://us.click.yahoo.com/B9pRWD/3MnJAA/Y3ZIAA/8LmulB/TM --------------------------------------------------------------------~-> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/