We picked our Equinox up from the dealer about two weeks ago and so far we had no chance to drive it extensively on highways. I try to include some highway driving but our commute only allows for maybe 3 miles at a time. Most of the driving is inner city stop and go. Since we got the car we put about 400 additional miles on it (630 miles total). I was wondering what you all think about what is the correct break-in procedure to get the optimum in terms of fuel efficiency and durability out of the car.