6 Quarts. ohh my god that's a good querstion!...spmetimes the oul place amkes me pay for six quarts therthimes just 5!!!!!!!
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According to the 2000 Mercury Cougar Owner Guide :
With engine oil filter change :
The 2.5 litre V6 engine takes ( 5.8 U.S. quarts of 5W-30 )
According to the 2000 Mercury Cougar owners manual ( 5W-30 ) for the four cylinder and V6 engines
Mercon V
You need an oil change.
If it is a V6 about 6 Quarts with a new oil filter.
According to the 2000 Mercury Cougar Owner Guide : With engine oil filter change : The 2.5 liter V6 engine takes ( 5.5 liters of 5W-30 engine oil )
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 )
6 ---------------------------------------------------------------------------------------------------- According to the 2000 Mercury Cougar Owner Guide : With engine oil filter change : The 2.5 liter V6 engine takes ( 5.5 liters of engine oil ) * the first answer is not mine , the corrected answer is , Helpfull *
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 ).
According to the Owner Guide : With engine oil filter change : 5.0 quarts ( 4.7 liters ) of engine oil