One can use any type that is similar to what is reccommended in the manual. I would NOT use Penzoil/Quaker State, as they both have a parafin base to them, and will leave serious deposits in valve covers (I know, I cleaned many of them).
( 5W-20 , according to the Owner Guide )
According to the 2003 Ford Crown Victoria Owner Guide : ( 5W-20 engine oil ) ( 5.7 litres / 6.0 U.S. quarts of 5W-20 with engine oil filter change )
According to the 2003 Ford Crown Victoria Owner Guide : With engine oil filter change : ( 5.7 litres / 6.0 U.S. quarts of engine oil )
A 1992 Ford Crown Victoria came from the factory with ( 5W-30 )
For a 1995 Ford Crown Victoria : ( 5W-30 engine oil )
The 2000 Ford Crown Victoria owners manual shows SAE 5 W - 30 engine oil
According to the 2005 Ford Crown Victoria Owner Guide ( 5W-20 ) * with engine oil filter change , 6.0 U.S. quarts of 5W-20 engine oil
6 Qts
According to one of Fords websites : For a 1992 Ford Crown Victoria , 4.6 liter V8 engine : ( Motorcraft FL-820 engine oil filter )
According to the 2006 Ford Crown Victoria Owner Guide ( 5W-20 ) ( with engine oil filter change , 6.0 U.S. quarts / 5.7 litres of 5W-20 engine oil )
According to the 1997 Ford Crown Victoria Owner Guide ( 5W-30 ) * with engine oil filter change , 4.7 litres / 5.0 U.S. quarts of 5W-30 engine oil
5 w 30 ( according to the owners manual )
5W-30 , according to the Owner Guide