put in 5 qts. with a new filter and you should be fine.
The 2003 Chevrolet Impala has 12 valves.
The 2003 Chevrolet Impala's engine produces 180 hp @ 5200 rpm.
The gas tank on the 2003 Chevrolet Impala holds 17 gal..
The 2006 Chevrolet Impala has 12 valves.
The 2011 Chevrolet Impala has 12 valves.
The 2009 Chevrolet Impala has 12 valves.
The 2013 Chevrolet Impala has 24 valves.
The 2010 Chevrolet Impala has 12 valves.
The 2004 Chevrolet Impala has 12 valves.
The 2008 Chevrolet Impala has 12 valves.
The 2007 Chevrolet Impala has 12 valves.
The 2005 Chevrolet Impala has 12 valves.