SL55/63/65/R230 AMG: brake fluid purge - '03 SL55 AMG


Looking for anyone who has done this, and the best procedure. I have always used Castrol GT LMA fluid in my Benzes and Porsches for street use (this will be a one time track trip - closing out 12 years of driving a Porsche that I sold a few weeks ago). Is that OK, or do I need to get a couple of liters from my local Benz dealer?
Thanks for your help.
Gary Knox
West Chester, PA



