Depending on the model and condition of the air cleaner, tires, engine, etc, you can expect from 20-30 mpg.
On an average condition high mile ex-cop or cab model you will not get much better than 25mpg.
Should have two.
If all is the same , why not.
Yes
Yes
yes
how many pink and white 1956 crown vic were made
can 5.0 engine fit in 1999 crown victoria
can i get a diagram for a fuse box for a 1998 crwon vic
usually about 6 quarts
check the coil pak's.
19 gallons ( U.S. ) according to the Owner Guide
if you can be magical dreams can come true.