Bought a 2006 Sentra with nothing. No power windows/locks, no cruise, 2 wiper speeds, crappy CD player that broke after 8 months.

Typically I get 28MPG no matter what kind of driving conditions are. Supposed to be somewhere around 31.

I put mid-grade in it becuase it runs smoother and it's only about a bucks more a tank than regular.

This last week I took a road trip, loaded down the car and drove 70-75mph most of the way.
Amazingly, over a week after I took that trip, I'm refilling the tank, did the math and realized I averaged 38.4 mpg. I'm impressed and amazed as well as confused. Oh well, I hope I get more tankfulls like that!

-J