Best is every 5,000 kms, or 3,000 miles
Usually every 5,000 Kms, or 3,000 miles. Filter also.
( 5 quarts ) with engine oil filter change ( according to the 1996 Mercury Grand Marquis Owner Guide )
According to the 2004 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 6 quarts )
According to the 2010 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 6.0 U.S. quarts )
According to the 1997 Mercury Grand Marquis owners manual : With engine oil filter change : ( 5.0 quarts / 4.7 liters of engine oil )
( 6 quarts with engine oil filter change ) according to the 2003 Mercury Grand Marquis Owner Guide
According to the 1997 Mercury Grand Marquis owners manual : With engine oil filter change : ( 5.0 U.S. quarts / 4.7 litres of engine oil )
when i do my oil change i put 6
For a 1995 Mercury Grand Marquis , 4.6 liter V8 : With engine oil filter change : ( 5.0 U.S. quarts of 5W-30 )
According to the 1997 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 5.0 U.S. quarts / 4.7 litres of 5W-30 engine oil )
5
Five with filter change