Within 400 miles my Armada was back at the dealers. First to have the oil pump changed (be aware that Nissans arrogant business model means that they don't have spares available yet and you will have a long wait), and there it remained when they discovered that they needed to replace the whole engine. It's now been in the garage for 30 days. I will never drive this car again. It is a LEMON.
It would have been nice to be able to drive it long enough to find one