According to the 1997 Mercury Grand Marquis owners manual :
With engine oil filter change :
( 5.0 quarts / 4.7 liters of engine oil )
According to the 1997 Mercury Grand Marquis Owner Guide : ( 5W-30 ) is the PREFERRED oil
5W-30
According to the 1996 Mercury Grand Marquis Owner Guide : ( 5W-30 is the PREFERRED engine oil weight )
According to the 1996 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 5 quarts / 4.7 liters of engine oil ) * the engine oil dipstick is used to determine the exact fill requirement *
5 w 30
when i do my oil change i put 6
6 quarts will put it right on the mark.
According to the 1999 Mercury Grand Marquis Owner Guide : ( 5W-30 engine oil , certified for gasoline engines ) With engine oil filter change ( 4.7 litres / 5.0 U.S. quarts )
As much as the gas tank will hold... ---------------------------------------------------------------------------------------------- On a 1997 Mercury Grand Marquis , the gas tank capacity is ( 20.0 U.S. gallons )
Are you an idiot? Remove the drain plug, drain the oil, unscrew the filter, put on a new one, refill with oil. Who doesn't know that?
For a 1992 Mercury Grand Marquis , 4.6 liter V8 : With engine oil filter change : ( 5.0 U.S. quarts ) * it came from the factory with 5W-30
Most people report you need 6 quarts to fill these engines, that's how much I put in mine. Consult your owner's manual if in doubt. Do not overfill the engine.