According to the 2003 Mercury Grand Marquis Owner Guide :
With engine oil filter change :
The 4.6 liter V8 engine takes :
( 5.7 liters / 6.0 U.S. quarts of 5W-20 )
Engine crankcase capacity = 3.3 quarts without filter change, 3.7 quarts with filter change
The crankcase capacity of a 97 power sroke is 14 quarts with a filter change.
About 4.3 quarts with filter change.
The crankcase capacity of the 1987 Yamaha 350 is 2.5 quarts. 2.0 quarts will go into the crankcase and .05 quarts will go into the oil filter.
Most Pontiacs take close to 6 quarts with a filter change.
5.2 quarts in the crankcase including filter
without oil filter 3.7 quarts with oil filter 4.2 quarts
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 engine holds 11.5 to 12 quarts with filter change.The engine holds 11.5 to 12 quarts with filter change.
4.5 quarts ( 4.25 liters ) with oil filter change
5 quarts
I believe you are talking about a PCV valve. PCV means Positive Crankcase ventilation.