The 1.8 Versa's do not get the greatest gas mileage. If you bought a V for that alone then the 1.6 is where it's at. But those only come in sedans. My 1.6 never has gotten below 33mpg and has a high of 46mpg (only happened twice so I don't note it in my sig). That high comes with careful driving and only doing the speed limit. If you want consistant 30's you may need to change your driving style. Go 5-10mph slower on the highway, limit your use of the defroster/AC, coast to and time lights, minimize slowing down on turns, and many other things.
Not saying the 1.8 isn't good and can't be a gas sipper. It definitely can as people have gotten 40mpgs from them. It's all on how you drive and for some cars it's easier to hit the magic 40 or in your case the magic 30. As far as breakin I have gotten similar mpgs from 0 miles to the current 55k I'm at now. Only time it changes is when I change how I drive.
I just replied to your intro thread. In the summer I was getting 28+ mpg. However with winter time I've been getting 25-26. Right now I do a mix of city/highway driving. With the high gas prices here; I'm pretty happy with this car.
I get 28-33 city/highway driving with the 1.8 I followed the brake in in the owners manual and have used syn oil since I have had it. the only time I get bad MPG was when it snowed bad and I got 20 but the tank befor it was 29.5 and the tank after it was 30.014 city MPG. I just go easy on the starts and stops and watch my speed.
I don't get "stellar" mileage. I get around 24-26 mpg average per tank. That's a mix between highway and city. But I think the real reason why is because I live 6 minutes from work and the vehicle doesn't get a chance to warm up fully.
the tanks are 13.2 gallons but you never use all of it. Even when running out of gas I bet there is some still in the tank the pump can't pick up. If calculating mpgs then run it low, reset the trip meter, refill until it clicks off the first time. Then drive the car a bit and when time to refill the car divide miles driven by gallons required to refill to that first click.
For most accurate results use same gas station and same pump. Also fill the car slowly as gas rushing down the filler neck can cause the pump to click off prematurely resulting in a crazy high mpg number for that tank but then a really low number for the next. Best is to take an average of several tanks. This is the reason I don't state my highest mpg is the 46mpg I have seen a couple times.
I just filled my 2010 S hatchback up for the second time today, so I got my first mpg reading: 27.2 with a mixture of highway, interstate and city driving. That's well within the range most people seem to get (based on Fuelly.com). Lexington traffic is God awful for fuel economy.