( 20.0 U.S. gallons ) according to my Chilton's book for a 1989 Ford Crown Victoria
For a 1992 Ford Crown Victoria : ( it came from the factory with 5W-30 )
On a 1989 Ford Crown Victoria : ( there are 5 lugs per wheel , total of 20 )
Ford Crown Victoria was created in 1955.
The 1997 Ford Crown Victoria owners manual shows ( 5 w 30 )
According to my Chilton's Auto Repair Manual : A 1989 Ford Crown Victoria has a ( 20.0 U.S. gallon gas tank )
on the transmission where the engine and transmission join.
5/w20 ========================================================= For a ( 1993 ) Ford Crown Victoria ( 5W-30 is the PREFERRED oil ) 2001 and newer Ford Crown Victoria Owner Guides show to use 5W-20
http://www.modifiedlife.com/1989-ford-crown-victoria-car-radio-wiring-schematic/ any car audio web page will have diagrams
My Chilton's Auto Repair Manual shows : For a 1989 Ford Crown Victoria 5.0 L ( 302 ) V8 : ( 39 PSI ) * the 8th " character of the VIN is an " F "