In Reply to: Need help with replacing fluids... (more) posted by Jeff J. on June 08, 2000 at 12:40:17:
Engine Oil - 5w50 Synthetic. I run to the normal fill level (4.6qts) for street driving. Add 1/2 to 3/4 over level for racing or on-track driving schools. Changed before every track event. Change the filter every other time. If you track the car, add an oil pan baffle kit before going on track.
Diff - Redline 75/90 synthetic
Transmission - Redline MTL
Coolant - depends on your local weather. Antifreeze does not conduct heat as well as water, so if you live in the south, like I do, or track your car, then you will run less than a 50% mix. If you live up north, run a 50% mix. I run about a 25% mix of antifreeze, and have added a bottle of Redline water wetter to it.
Brake Fluid - Ford Heavy Duty DOT 3, changed before every race or track event. For street driving just about anything should work, change once a year. If you track the car, consider brake cooling ducts - not necessary for the street though.
Power Steering - I've left it alone.
E30 M3 J-Stock club racer (and street legal)