Premiun Unleaded is required with at least a 91 octane rating.
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 2012 Lexus IS-250 holds 17.2 gal..
The gas tank on the 2013 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 2011 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 2008 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 2010 Lexus IS-250-C holds 17.2 gal..
The gas tank on the 2013 Lexus IS-250-C holds 17.2 gal..
The gas tank on the 2012 Lexus IS-250-C holds 17.2 gal..