2.5 V6
5 liters without the oil filter..
5,5 liters with the oil filter
2.0
similarly:
3.75
4.25
This data is from the genuine owners guide
According to the 1999 Mercury Cougar Owner Guide : ( 5W-30 ) is used in the 2.0 litre four cylinder engine and the 2.5 litre V6
4.5 quart
For a Mercury Cougar , 2.5 litre V6 engine : According to the 1999 to 2002 Owner Guides : ( Motorcraft FL-820 engine oil filter )
According to the 2001 Mercury Cougar Owner Guide : For the 2.0 litre four cylinder engine : ( with engine oil filter change , 4.25 litres / 4.5 U.S. quarts of 5W-20 engine oil )
I'm assuming it is the same as the ( 1996 ) Mercury Cougar 4.6 liter V8 : With engine oil filter change : ( 5.0 U.S. quarts should put you almost to the full mark )
On a 1991 Mercury Cougar : The oil pump is INSIDE the oil pan ( the oil pan is bolted to the bottom of the engine )
According to the 2002 Mercury Cougar Owner Guide : The 2.5 liter V6 engine takes : With engine oil filter change : ( 5.5 litres / 5.8 US. quarts of 5W-20 engine oil )
The oil capacity should be with the filter 5.5 L ( 5.8 qts )Without filter 5.0 L( 5.3 qts ).
It will fit a 2003 Mazda MPV with a 3.0L engine.
According to the Owner Guide : With engine oil filter change : 5.0 quarts ( 4.7 liters ) of engine oil
Answer oil capacity for mercury mountioneer with 4.6 v-8 with filter change ========================================================================= According to the 1999 Mercury MOUNTAINEER Owner Guide : With engine oil filter change : The 5.0L V8 engine takes ( 4.7 litres / 5.0 U.S. quarts of 5W-30 )
The Owner Guide for the 1999 Mercury Cougar shows ( 5.8 quarts with filter change ) for the 2.5 liter V6 engine