I took my 2010 Pro4-X to my local dealer last week for an oil change. Since then I have driven about three hundred miles. Half of those miles was pulling my 20 ft. fiberglass bass boat. Well, for a while now, I have been hearing a slight squeak when I turned the steering wheel all the way to the left or right. So I finally popped the hood and, sure enough, the power steering fluid was pretty low. Even though I had just had the oil changed, I decide to check the oil while I had the hood up. The dipstick was completely dry except for about 1/8 of an inch. This means that the truck is approximately three quarts low. Apparently the dealership underfilled my truck drastically when I had the oil changed. Had I not checked the power steering fluid, I would have driven the truck this way for the 3500 miles until my next oil change. My question is this. What kind of engine damage may have been done to my truck due to my driving it so low on oil. And towing a boat at that. I love this truck but now I am concerned. I had planned on keeping it for several years but now I am not sure if I need to unload it before the powertrain warranty runs out or not.