It is my understanding that the primary purpose of a break-in is to insure that the piston rings are seated properly. The effects of an improper break-in arise thousands of miles down the road.hlea34 said:really? what happens if we kinda push it for like the first couple hundred.....i drive freeway often so i have to go around or above that speed. i just got my car like two months ago and i feel like i'm gonna "break it" ....hurt it in the long run i guess.