Yes, consuming oil is normal. I wouldn't worry about 2 qts in 6000 miles, that is very close to the 2 litres that I use every 8000-10000 km. The dealer will not usually treat it as high consumption unless it is over 1 quart per 1000 miles.

If your previous vehicle doesn't use any, fine, but that isn't to say that it defines the standard.

Consumption will vary depending on how the rings have seated, which can be impacted by production tolerances, lube oil used, and break-in procedures.

__________________
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