I HAVE A 02 ALMOST 6 YEARS with almost 55,000 miles. I get arround 40-44 mpg. Alot depends on the gas and where you get it.
I find that if you go to a station,that has pumps w/nozzles for each grade. You get better gas.
With one nozzle you always get a little of what ever the last person got.

I was so much older then, I am younger than that now (Wrote By Dylan Sung by the BYRDS,)