anywhere from 20 to 28. Depends how you drive.
14-17 town 20-24 highway, at least that is what mine gets.
According to www . fuel economy . gov ( no spaces ) For a 1989 Ford LTD Crown Victoria with the 5.0 , V8 engine ( 15 city / 22 highway miles per U.S. gallon )
According to my Chilton's Auto Repair Manual : A 1989 Ford Crown Victoria has a ( 20.0 U.S. gallon gas tank )
Yes
( 20.0 U.S. gallons ) according to my Chilton's book for a 1989 Ford Crown Victoria
Yes, they are identical
On a 1989 Ford Crown Victoria : ( there are 5 lugs per wheel , total of 20 )
C-4 aod
147 hp
About two tons.
http://www.modifiedlife.com/1989-ford-crown-victoria-car-radio-wiring-schematic/ any car audio web page will have diagrams
it is 215/70/15