Hey Phil,
1. Every 10,000 miles or so, you should change the air filter in your BMW. The air filter protects the fuel injection system and the air intake system from dust and debris that can be sucked in under normal operation.
2. The power steering fluid is common Dexron II/III ATF.
3. Fuel anything above 92 Octane
4. I would go to
http://forums.bimmerforums.com/forum...prune=-1&f=160 and ask people there . . . I'm in Northeast Ohio . . sorry . . .