38.76 MPG

496.1 mi, 12.798 gal @ $3.999 = 38.76 MPG

60,869 total miles, 76 on West San Carlos at 280.

Wow, a new one tank mileage record! Nearly 39 MPG, that is awesome. I knew it was a good tank so I decided to try 76 again. We'll see if there's anything to it...