19 gallons ( U.S. )
According to the 2004 Mercury Grand Marquis Owner Guide : ( 19.0 US. gallons )
According to the 2005 Mercury Grand Marquis Owner Guide : ( 19.0 US. gallons )
The ( 2007 ) Mercury Grand Marquis has a ( 19 U.S. gallon tank )
18
According to the 1997 Mercury Grand Marquis Owner Guide : ( 20.0 U.S. gallons )
19 gallons ( U.S. )
19 gallons
A 2001 Mercury Grand Marquis will hold approximately 20 gallons of gasoline. The fuel economy is 17-25 miles per gallon.
20 gallons , according to my Chilton book
According to the 2000 Mercury Grand Marquis Owner Guide : ( The gas tank capacity is 19.0 U.S. gallons )
According to the 2003 Mercury Grand Marquis Owner Guide : The fuel tank capacity is ( 19.0 U.S. gallons )