Originally Posted by Rossue
My tow car is a 2011 4X2 Murano that is rated at 3500 lbs. towing. It seems fine with the load levelers; have towed about 1500 miles so far however am somewhat concerned about the CVT transmission. Changed fluid recently by dealer at 30K. Am I ok with this vehicle?
If the vehicle is operated within the limits and procedures specified by Nissan (especially the Gross Vehicle Weight Rating, and the type and replacement interval for transmission fluid), I don't know of any reason to be concerned about the transmission.
These CVTs transmit power by traction - parts rolling on other parts under lots of force so they grip by friction - rather than gears or hydraulics. That leads to a legitimate concern that they will slip and as a result overheat or wear if overloaded. Nissan knows that, and will have set both the loading limits and the transmission controls appropriately.
I note that the car's tires pressing on the ground and driving the vehicle forward is also a traction drive, which seems to work.
The parts in the transmission are working in a much better controlled environment. Transmissions of this design have been used for decades, so it's not an unproven technology.