<< uh...I went speeding off the lot in my new Altima, put 1600 miles on it in the firt weekend (drive to Wisconsin) and I didn't drive it very conservatively.....maybe that was a bad idea, but i haven't had a single problem with it yet... >>
LOL, I certainly hope you have no problem with a 1600 miles-car. If you are just leasing and turning it in in 3 years, go ahead and shift at redline from mile 1. However, if you want to keep it, I would take it easy for at least 500 miles. BTW, I would also change oil at 500.