Bleeding Brakes and Clutch

[Shotgun]

Been a while since I bled the brakes and clutch.  I have Speedbleeders so it makes it easy.  One question though, is all brake fluid synthetic?  I picked up some Dot 4 and it says synthetic but I thought I read somewhere that I can't use synthetic.....that may be Dot 5 though.....any help?

[sandy]

DOT 4 synthetic is good. You don't want to use silicone.

[Shotgun]

Thanks.......I knew that.....at my age it takes a little to shake up the memory.

[gordonv]

Wasn't there also something about not mixing DOT 4 with other DOT types?