West Texas winter driving can be tricky due to the icing of the bridges while the general roadways are still OK. I found that when driving a passenger car it is important to maintain a steady throttle when passing over a bridge. When pulling a trailer, however, maintaining a steady throttle may cause the rear end of the tow vehicle to brake loose due to the additional torque being applied for the towed load. In that case I find a very slight reduction of throttle while passing over a bridge keeps things in line.
