Hi all, I drove a 2012 Nissan Armada for 5 years and I tow a 26' travel trailer (30' tip to bumper) with a GVW of 6100#. I regularly have another family in it with me so it's not unheard of for me to have 6-8 people and a german shepherd in the car while I am towing. I loved my 2012 so much that I replaced it with a 2015 last spring. (I looked at the newer ones but they don't have the room I need behind the 3rd row seat for the dog). The issue I am having is this... The 2012 was a beast! It never slowed down while I was towing up hills, it also seemed to have lots of spare power when I had to pass towing or not towing. The transmission gauge would go high but the fluid never smelled burned and it would quickly cool down when I was done going uphill. My new one struggles with the hills, really struggles in comparison. I have done a couple grades where it wouldn't go faster than 15 mph unless I manually put it in first gear then it would go up to maybe 25 mph. On the upside the transmission gauge never moves off of center. Does anyone have any idea of how I can improve the performance of my new one so it is more like the old one? Could it be a gearing difference? They are both rental returns so I don't think that either one of them would have had a modification done to them before I got them. They are both 4 wheel drive Armadas. Thanks in advance for any help on this issue!