I have a '95. 118,000 mi, little bad on gas at the moment. You can try replacing the spark plugs and wires, distributer cap, fuel filter, air filter. Use a fuel injecter cleaner. If that does'nt help than you can have the Oxygen sensers tested/replaced. The air intake could be ajusted wrong (idles to high) Waiting to long to shift on a stick shift(RPMs get high). And even could be your brakes, you can jack up each wheel and see if it spins freely.
I have'nt got around to fixen mine yet, But I do know the my Catalitic converter is bad (loud rattle under front passenger floor). Not shure if it is restricting air flow or not.
hope this helps.
People may laugh at our small cars, but we laugh at how much gas they use.