What kind of fuel milage ???

I was looking at a 98 Frontier 4cylinder auto and was wondering what kind of mileage to expect out of it. My friend has a 02 4cyl auto that gets 30 mile per gallon.I wouldnt have believed him if I hadnt been there to see it. We filled it up went 94 miles and filled it again and it held 3.2 gallons.

I get around 22-25 mpg in my 1998 Nissan Frontier XE.