Ford F-250 With One Tank (side) 18 Gal US, w/ Dual Tank (Side & Rear) 18+13 = 31 Gal
The gas tank on the 2012 Lexus IS-250 holds 17.2 gal..
The gas tank on the 2011 Lexus IS-250 holds 17.1 gal..
The gas tank on the 2007 Lexus IS-250 holds 17.1 gal..
The gas tank on the 2013 Lexus IS-250 holds 17.1 gal..
The gas tank on the 2014 Lexus IS-250 holds 17.4 gal..
The gas tank on the 2006 Lexus IS-250 holds 17.1 gal..
The gas tank on the 2009 Lexus IS-250 holds 17.1 gal..
The gas tank on the 2010 Lexus IS-250 holds 17.1 gal..
The gas tank on the 2008 Lexus IS-250 holds 17.1 gal..
The gas tank on the 2011 Lexus IS-250-C holds 17.2 gal..
The gas tank on the 2010 Lexus IS-250-C holds 17.2 gal..