how do i improve my gas mileage a little bit more mind u i drive 60 miles a day to work and back and fill up everyother day( about 20 miles a gallon) and i did a tune up and changed the o2 sensor already

Try some fuel injector cleaner. A bad spray can cause poor gas mileage. Also are you going into closed loop and is your timing right? Air leaks? Many things including alignment can cause poor mileage.

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85 GT 4spd 2.8 1 yr blk
86 SE 4spd 2.8 2 yr blk
86 GT Auto 2.8 new to me.
87 SE 5spd Future 4.9 6yr

I was getting very poor gas mileage when I bought my car in Oct. It started at 15 mpg city! I did a series of things to fix it.

1. Replaced the old out of balance tires. ~ 17 mpg city
2. Did a full tune up including replacing wires, spark plugs and air filter. ~18 mpg city.
3. Replaced my transmission fluid with synthetic oil. My fluid level was about 1 quart low. This made shifting much smoother and the transmission went into gear easier. ~23 mpg highway with 200 pounds of luggage @ 75 mph
4. Fixed my EGR system. 27 mpg highway with 200 pounds of luggage @ 75 mph.
5. Drove @ 60-65 mph following grandpa home from camp. 29 mpg highway with 200 pounds of luggage.
6. Drove @ 80-90 mph for 200 miles. 22 mpg highway.

I will be buying some BG 44K fuel injector cleaner to run through my engine. I expect my fuel milage to increase when I do this since my injectors have 145k miles on them.