About 9 imperial gallons.
13.5 gallons
24.3 gallons.
about 10
a little less then 16 gallons
Probably 45
The fuel tank on the 2009 BMW X3 holds 67 litres (17.7 US gallons/14.7 imperial gallons)
7.7 quarts
The gas tank on the 2004 BMW X3 holds 17.7 gal.
The gas tank on the 2011 BMW Z4 holds 14.5 gal..
The gas tank on the 2013 BMW Z4 holds 14.5 gal..
The gas tank on the 2009 BMW M5 holds 18.5 gal..
The gas tank on the 2009 BMW X6 holds 22.5 gal..