TomGxyz wrote:I hit 4k RPMs at 42mph with "O/D OFF". Cant imagine and never want to see what happens at 75mph. Im sure NIssan thought of all this so Im confused as to why designed a possibility to put the trans in "O/D off" while at hight speeds over 65mph.
I will keep reading as much as I can. thanks again.
I would assume that you might turn the O/D off if you are climbing a large hill, which you might be doing at those sort of highway speeds.
I also would not worry what happens if you take the car out of O/D mode. The car is designed to handle this and the computer will deal with it properly.