This was the first time I paid $30 for a tank of gas so I tried something different. I normally upshift around 3000-3500 RPMs. Lately, I've been upshifting around 2500 RPM. I noticed that the gas mileage increased from 26.5 MPG to 29 MPG, per on-board computer. This was only one tank full; I'm going to try it again to see if it was an anomaly. Anyone else try this and noticed any difference?