just because the dealer says you should get 20 mpg ,it does not mean you will.
my crown vic is reated at 15-20. i get 20 in town and 33 on the highway. my
friend and father have the same exact cars. dad gets16-24, and my friend gets
10 in town and 14 on the highway. how can this be??? i use cruise control, and
do not do to much in town driving.dad lets his car idle for 10-15 min to warm
up, and gets on it at times going to fires.(volenteer fireman) my friend has a
lead foot, and is always standing on the throttle, also he thinks nothing about
leaving the car idleing for 4-5 hrs at a time.