Aprox 12 to 14 quarts of coolant.
According to the 2004 Lincoln Navigator Owner Guide : ( 28.0 U.S. gallons )
A 2015 Lincoln Navigator holds 28 to 33.5 gallons of fuel, depending on the options selected.
The gas tank on the 2010 Lincoln Navigator holds 28.0 gal..
The gas tank on the 2013 Lincoln Navigator holds 28.0 gal..
The gas tank on the 2008 Lincoln Navigator holds 28.0 gal..
The gas tank on the 2006 Lincoln Navigator holds 28.0 gal..
The gas tank on the 2002 Lincoln Navigator holds 30 gal..
The gas tank on the 2011 Lincoln Navigator holds 28.0 gal..
The gas tank on the 2001 Lincoln Navigator holds 30 gal..
The gas tank on the 2003 Lincoln Navigator holds 28 gal.
The gas tank on the 2012 Lincoln Navigator holds 28.0 gal..
The gas tank on the 2007 Lincoln Navigator holds 28.0 gal..