there could be a leak in the oil cooler or maybe a head gasket or a cracked block. Is there every any water in the oil?
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 : ( 5W-30 ) is the PREFERRED oil
According to the 1997 Mercury Grand Marquis Owner Guide : ( 5W-30 )
A 1992 Mercury Grand Marquis came from the factory with ( 5W-30 )
i have the same thing but mines a 1993 4.0
According to the 1996 Mercury Grand Marquis owners manual ( 5W-30 engine oil ) is the PREFERRED oil weight
According to the 1996 Mercury Grand Marquis Owner Guide ( 5W-30 is the PREFERRED engine oil )
Unscrew it....? If it's over-tightened, might haffta get a strap wrench, or go to an oil change place, and let them mess with it.
According to the 1996 Mercury Grand Marquis Owner Guide : ( 5W-30 is the PREFERRED engine oil weight )
( 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 )