Typically, you will use 5 quarts of oil. Check your manual for the correct oil capacity.
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According to the ( 2004 ) Lincoln Navigator Owner Guide :
With engine oil filter change :
( 7.0 U.S. quarts / 6.6 liters of 5W-20 )
According to the 2004 Lincoln Navigator Owner Guide : With engine oil filter change ( 7.0 quarts )
7
7 Quarts
5 Qts, ========================================================= According to the 2004 Lincoln Navigator Owner Guide : With engine oil filter change : ( 7.0 U.S. quarts of 5W-20 )
On the front of the motor driver side bottom behind the fan shroud.
According to the 2002 Lincoln Navigator Owner Guide : ( 5W-20 engine oil is recommended )
According to the 2006 Lincoln Navigator Owner Guide ( 5W-20 )
According to the 2008 Lincoln Navigator Owner Guide : With engine oil filter change : ( 7.0 quarts of engine oil )
According to the 2006 Lincoln Navigator owners manual ( 5W-20 )
According to the 1999 Lincoln Navigator Owner Guide ( 5W-30 )
transmission is 15.5 qrts for sure engine is 5qrts i believe ------------------------------------------------------------------------------------ On a 1998 Lincoln Navigator : With engine oil filter change : ( 6.0 U.S. quarts / 5.7 litres of 5W-30 engine oil ) According to the Owner Guide
With engine oil filter change ( 7.0 quarts ) according to the 2011 Lincoln Navigator Owner Guide