According to the 1998 Mercury Mountaineer Owner Guide :
With engine oil filter change :
( 4.7 litres / 5.0 U.S. quarts of 5W-30 engine oil for the 4.0 liter V6 and the
5.0 liter V8 engines )
Sounds like u need oil!
Bottom front of engine.
The oil pan is bolted to the bottom of the engine
The oil pump is bolted to the bottom of the engine , inside the oil pan
According to the 1998 Mercury Mountaineer Owner Guide : With engine oil filter change : The 5.0 liter V8 engine takes ( 5.0 U.S. quarts of 5W-30 )
For a 1998 Mercury Mountaineer with the 5.0 liter / 302 cubic inch V8 With engine oil filter change ( 5.0 U.S. quarts of 5W-30 engine oil , according to the Owner Guide )
According to the 1998 Mercury Sable Owner Guide : With engine oil filter change : The 3.0 liter " Vulcan " V6 engine takes ( 4.5 quarts ) The 3.0 liter " Duratec " V6 engine takes ( 5.5 quarts )
According to the 1998 Mercury Mystique Owner Guide : With engine oil filter change : The 2.5 liter V6 engine takes ( 5.5 liters / 5.8 U.S. quarts of 5W-30 )
According to the 1998 Mercury Tracer Owner Guide : With engine oil filter change , the 2.0 liter SOHC four cylinder engine takes : ( 3.8 litres / 4.0 U.S. quarts of 5W-30 )
According to the 1998 Mercury Grand Marquis Owner Guide ( and one of Fords websites ) The ( Motorcraft FL-820-S ) engine oil filter is used
whereiscrank case oil drain plug on 1998 mercury 9.9 4 stroke
According to the 1998 Mercury Grand Marquis Owner Guide : With engine oil filter change ( Motorcraft FL-820-S ) The 4.6 liter V8 engine takes ( 5.0 U.S. quarts / 4.7 litres of 5W-30 )