take the tank off and flush it out with a water hose...
The gas tank on the 2010 Suzuki SX4 holds 13.2 gal..
The gas tank on the 2003 Suzuki Grand-Vitara holds 16.9 gal..
The gas tank on the 2011 Suzuki SX4 holds 13.2 gal..
The gas tank on the 2011 Suzuki Kizashi holds 16.6 gal..
The gas tank on the 2012 Suzuki Kizashi holds 16.6 gal..
The gas tank on the 2008 Suzuki SX4 holds 13.2 gal..
The gas tank on the 2011 Suzuki Grand-Vitara holds 17.4 gal..
The gas tank on the 2005 Suzuki Grand-Vitara holds 16.9 gal..
The gas tank on the 2013 Suzuki Grand-Vitara holds 17.4 gal..
The gas tank on the 2006 Suzuki Grand-Vitara holds 17.4 gal..
No but make sure the gas tank is clean and free from debris, if there is dirt or debris then clean the tank with fresh gas or you can use diesel fuel either way make sure its clean.
11 gallons