I think it is the breaking in period Not to over rev the engine so that the engine parts gets time to...'fit properly'
joey2003
Apparently, it seems that if you run-in your car, i.e. be nice to your car for the first few thousand kilometers...then you will be rewarded to longer engine life in the future, say, around 3~4 years time.
Run-in depends on the cars... check with your SE how long u have to run in your car... it's quite frustrating initially, especially if u buy an EVO and you can't rev... but it'll pay off in future...trust me...