Who conducts the fuel efficiency tests for vehicles in the US? Is it the manufacturer, or some independent agency?
Whoever it is, I am very surprised that their result for my vehicle is more conservative than reality.
Officially, my Honda Accord 2002's highway MPG is 28. This weekend, I measured 32.48 MPG, with a sample size of 414.4 miles of highway driving (with a few miles of it in a city)—and that's with my headlights on and my laptop plugged into the cigarette lighter through an 12v-120v inverter!
Does anyone have similar (or opposite) experiences?
