Yeah theres alot you can do, my 96 gets 24 mpg on the highway but Its all above 75 mph, if i drop the speed to 65, I can 26.5 mpg. One trip to FL. traveling @ 55 I got 28 mpg. I'll run a half a can of Seafoam through the intake manifold to clean out the carbon, and dump the rest in the fuel tank. (every other oil change). Swap out the rear gear to 3.08.... They say not to clean the throttle body with carb cleaner but I have without any problems, try to clean your maf sensor with a good electrical contact cleaner too. they get a "patina" on them occasionally.