Well I purchased the Valvoline brake fluid which I read is pretty good compared to Castrol GT LMA, I bought it on sale for $5.99 for 32 ounce bottle at Advanced Auto Parts in Yonkers,NY, the sale ended 8/29/12.
Since I don't track my car , I believe this is a good fluid.
High dry boiling point up to 480°F
Minimum wet boiling point is 311°F
Castrol GT LMA - DOT 4 -
High dry boiling point up to 446ºF
Minimum wet boiling point is 311ºF
2006 Alpine ,325xi sedan,Terra, steptronic,Xenon,heated seats,Premium package