But the highway and interstate are where you can and should conserve the most gas. On my regular trip to and from the main campus I usually drive 65-70 while people pass me doing 75-80 only to have me catch up at a redlight in town. You cant tell me thats not wasteful on their part when I made the same trip in the same time using less fuel and getting just as much time to sing with the radio.
As for pushing being involved I hope its once the cars come to a stop where I can have an excuse to beat someone down and not on the road where the SVT bumpers are likely to fall off and skid down the road.