Originally Posted by TrackRat
There is nothing rubbish about the BMW DOT 4 OE brake fluid. It functions just fine like any other DOT 4 fluid. ATE is fine as are others including Castrol LMA which is a low moisture absorption brake fluid which is inexpensive and excellent for street use.
If 446F/311F dry/wet boiling point* is not rubbish, what is? Between an E36 M3, an E46 M3, an 05 Z4 and an 07 335i I have never driven a BMW with OEM fluid whose brake pedal didn't get mushy after a couple of hard high speed stops.
*Belarus stats, not verified by me. I actually think it may be even worse than that.