So Sunday I was under my 2011 3500hd and noticed a little coolant on the bottom of the oil pan towards the back of the engine. Looks like it could only be a freeze plug at the back of the motor. I have to take it in to the chevy dealer this afternoon to see what it will cost to get fixed as the transmission or engine will have to come out. Now at least 2 snows are on the way, and I cant be without this truck. Would it be too risky to drive until the snow passes? Keep in mind I never see any coolant on the ground. Thanks