 We know that driving around town, we get worse gas mileage. Why? Because it requires more fuel to get the inertia kicked out of the way, get your heavy 2,000, 3,000, 4,000-pound vehicle moving on the highway. And that is where most of the gas gets poured into the injectors, where that's driving the pistons up and down and trying to move this big, heavy Object 4. Once it's in motion, you're good. So that's why on the highway, you get 25 miles a gallon. In the city, you get 12.