They take 5w30 and i would use synthetic. That's what was ran in mine and they last longer that way.
According to the 2006 Lincoln LS Owner Guide : With engine oil filter change ( 6.5 quarts )
where is the oil filter and the oil drain plug on a 2001 Lincoln ls where is the oil filter and the oil drain plug on a 2001 Lincoln ls
I was looking at the ( 2004 ) Lincoln LS Owner Guide and it shows : For the 3.9 liter V8 : With engine oil filter change ( 6.5 quarts of engine oil )
were are oil stick located on lincoln Ls 3.9 v8
According to the 2006 Lincoln LS Owner Guide : The 3.9 liter V8 engine takes the ( Motorcraft FL-2021 engine oil filter )
According to the 2002 Lincoln LS Owner Guide , the 3.0 liter V6 engine takes ( 6.9 quarts ) with engine oil filter change
According to the 2001 Lincoln LS Owner Guide : For the 3.9 litre V8 engine : With engine oil filter change : ( 5.7 litres / 6.0 U.S. quarts of 5W-30 engine oil )
oil leaking on your spark plugs in your Lincoln LS because you have a leaking valve cover gasket.
( 5W-20 ) according to the 2005 Lincoln LS Owner Guide
I was looking at the 2006 Lincoln LS Owner Guide and it shows : Use of synthetic or synthetic blend engine oil is not mandatory
05 Lincoln LS v8 and probably the entire Lincoln ls v8 year range
The Owner Guide shows 6.9 quarts , with engine oil filter change