On my first long trip with my new 2500 HD pulling a fifth wheel, I got a water in fuel message. I had driven for about an hour after refueling when the warning appeared. I pulled off the highway, and shut down the engine. After about 20 minutes, I started the engine and the message was gone. I continued to the next filling station and refueled again, and no problems in the 450 miles since. Does anyone had a a similar problem, and what should I do next? Thanks. Jim