The gas tank on the 2005 Scion xB holds 11.9 gal..
The gas tank on the 2005 Scion tC holds 14.5 gal..
10 gallons
about 12
10 Gal with one gal reserve
The gas tank on the 2013 Scion iQ holds 8.5 gal..
The gas tank on the 2014 Scion iQ holds 8.5 gal..
The gas tank on the 2014 Scion xD holds 11.1 gal..
The gas tank on the 2014 Scion tC holds 14.5 gal..
The gas tank on the 2012 Scion iQ holds 8.5 gal..
The gas tank on the 2006 Scion xB holds 11.9 gal..
The gas tank on the 2008 Scion xB holds 14.0 gal..
The gas tank on the 2009 Scion tC holds 14.5 gal..