On Dave Z's recomendation, I've had RP Synchromax in my 6-speed trans for 5 years and nearly 50k miles. No problems. Still shifts smooth as can be. In fact this reminds me, I'm due to change it.
chiefwej 2003 540i ///m-tech 6-speed
Black Sapphire Metallic w/gray
Last edited by chiefwej; 06-12-2010 at 06:42 PM.