I'm extremely sorry, to bring up another beat to death topic again... My friend and I was debating about the break in period. We both agreed it was up to 1000 miles and to keep under 4k. But our differences stopped there. He said it is okay to take it up to 4krpm in 5th gear meaning that exceeds 90mph. Wouldn't that be bad for a brand new car? Please don't flame me . I'm pretty new.