31.96 MPG

439.5 MI, 13.752 GAL @ $3.539 = 31.96 MPG

83,707 total miles. Chevron on California Circle in Milpitas.

Ouch! I think this is the worst mileage I've seen in this truck. It's been cold and wet lately, and I've had the headlights on both directions for my commute. Hopefully that explains the sudden dive in MPG...