Welcome To The Forum! You're going to like the information and help you can get from here. I'm a quiet member but from all the browsing around you'll see you can definitely improve your basic fuel efficiency.
96 Ford Explorer XLT Auto 4.0 OHV 4X4
98 Escort ZX2 Sport 2.0 DOHC 5spd.
99 Chevy Malibu 2.4L Auto
Thanks to cash for clunker I got a Honda Fit. I had a Ford suv got 15 mph on a good day. Now I'm getting 37.9 mph with the Honda and that is in the city. Still working on getting 40mph city, but getting closer all the time.