Quote Originally Posted by mbt
it won't break your car.... provided you make sure that revs are appropriately matched when you re-engage the gearbox, whether for manuals or automatics.

i think the reason why it is not advisable to cruise in neutral is that you lose precious time in case of an emergency where you may need power instantly.
I agree. You have less control over the vehicle. AFAIK, its illegal in CA to cruise in neutral or most states prohibits this. I know, how are they going to know right? They will, when you get into an accident.