Any reputable name brand DOT4, IMO. Has to be fresh, not a stale can sitting around. Unless you are tracking the vehicle it won't make any difference which one you use. And if you were tracking the vehicle the 24 month change interval would be far too long in any case.

If you don't get any air in the system, ie never let the reservoir go dry, you shouldn't have to cycle the ABS module. OTOH, if you let it draw air, that air can become trapped in the ABS module, and it can be a pain to get it out. You will need a computer that can cycle the module if that happens. So don't let it happen.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue