Could probably tow twice that -if slow enough and short enough distance-depending on how steep the hill. I've pulled semis with a pickup. I've known people that would double their tow rating with weight distribution hitches, transmission coolers, good brakes and tires, not being in a hurry and a lot of sense on what their vehicles could do. Could tow in low range if you needed to and didn't overdo it. The danger goes up exponentially with the speed.