According to the 2003 Lincoln Navigator owners manual ( 5W-20 )
You can view the owners manual online at :
www . motorcraft service . com ( no spaces )
Click on Owner Guides
http://www.autopartsource.com/catalog/7704.pdf I found a link with directions on how to replace the cabin filter on a Lincoln Navigator. It states it should take approximately 15 minutes to do the job. Pages 49-50 of this pdf file give directions along with drawings on replacing the filter for models 1998-2005 of the Lincoln Navigator.
Take out the battery.
According to the 1998 Lincoln Navigator Owner Guide : ( " regular " unleaded , 87 octane gasoline is used )
With engine oil filter change ( 7.0 quarts ) according to the 2011 Lincoln Navigator Owner Guide
According to the 2004 Lincoln Navigator Owner Guide : With engine oil filter change ( 7.0 quarts )
According to the 1998 Lincoln Navigator Owner Guide : ( 5W-30 , 6.0 U.S. quarts with engine oil filter change )
The 2005 Lincoln Navigator doesn't have an automatic transmission fluid dipstick , if your transmission isn't working properly or you suspect a leak take it to the dealer
Good question.
Take it for a ride with some fat chicks
A problem has been detected with the air suspension system Take it in for servicing
According to the 2000 Lincoln Navigator Owner Guide : With engine oil filter change : ( 6.0 U.S. quarts of 5W-30 engine oil )
According to the 2002 Lincoln Navigator Owner Guide the fuel tank holds ( 30 U.S. gallons , so if the tank was empty and you pay $ 4.00 per gallon that would cost $ 120.00 )