answersLogoWhite

0

With a 4.6 L engine, on the hi-way, you should get around 28 MPG. Have the injectors checked, timing, and sensors.

User Avatar

Wiki User

17y ago

What else can I help you with?

Related Questions

How many miles per gal should a 99 Mercury grand marquis be GETTING?

For a 1999 Mercury Grand Marquis : ( 15 city / 22 highway ) miles per U.S. gallon , according to a website I was looking at


How many gallons of gas does a grand Marquis hold?

The ( 2007 ) Mercury Grand Marquis has a ( 19 U.S. gallon tank )


What is the gallon tank size on a 1989 Mercury Grand Marquis?

( 20 U.S. gallons )


Tank capacity of a 1988 grand marquis?

According to my Chilton's Auto Repair manual : A 1988 Mercury Grand Marquis has a ( 20 U.S. gallon ) gas tank


When was Mercury Grand Marquis created?

Mercury Grand Marquis was created in 1983.


How many gallons of gas does a 2001 Mercury Grand Marquis hold?

A 2001 Mercury Grand Marquis will hold approximately 20 gallons of gasoline. The fuel economy is 17-25 miles per gallon.


Was size gas tank does a 86 grand marquis have?

According to my Chilton's Auto Repair manual : A ( 1987 ) Mercury Grand Marquis has a ( 20 U.S. gallon gas tank )


How many miles per gal should a 99 Mercury grand marquis be gretting?

For a 1999 Mercury Grand Marquis : ( 15 city / 22 highway miles per U.S. gallon ) according to a website I was looking at


What is the firing order for a 1998 Mercury Grand Marquis?

what is a fire order for 1998 mercury grand marquis


What is the spark plug gap on a 1994 Mercury Grand Marquis?

.054 is the gap for the Mercury Grand Marquis.


Check a starter for a 2000 Mercury Grand Marquis?

how to replace starter on 2000 mercury grand marquis


What is the gas mileage for a 2005 Mercury Grand Marquisls?

According to a website I was looking at : For a 2005 Mercury Grand Marquis : ( 16 city / 23 highway / miles per U.S. gallon )