According to the 2001 Mercury Grand Marquis Owner Guide ( 5W-20 )
( with engine oil filter change , 5.0 U.S. quarts / 4.7 litres of 5W-20 engine oil )
4.5 quarts
5
Where is it located on the engine
5w-30 is what I use in my 2000 grand marquis, in 2001 ford started saying 5w-20.
According to the 2002 Mercury Grand Marquis Owner Guide : With engine oil filter change : The 4.6 liter V8 engine takes ( 5.0 U.S. quarts of 5W-20 )
Six quarts should be correct, but consult your owner's manual. ===================================================== According to the 2001 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 5.0 U.S. quarts of 5W-20 )
Usually every 5,000 Kms, or 3,000 miles. Filter also.
According to the 1997 Mercury Grand Marquis Owner Guide : ( 5W-30 ) is the PREFERRED oil
A 1992 Mercury Grand Marquis came from the factory with ( 5W-30 )
According to the 1997 Mercury Grand Marquis Owner Guide : ( 5W-30 )
According to the 1996 Mercury Grand Marquis owners manual ( 5W-30 engine oil ) is the PREFERRED oil weight
IT is probably the oil temperature sending unit. Costs less than $10.00 to replace yourself.