Trailer pulling story. I was pulling my 6800# GN trailer with 2 Jeep Buggies onboard with my '00 7.3 Powerstroke. Friend of mine was pulling same size trailer with a Jeep Buggy and a Polaris RZR onboard with his '06 6.0L Powerstroke. On an accessable 4 lane hiway. A GM Duramax truck pulled onto the roadway ahead of us pulling same size trailer with a Bobcat CTL onboard. My friend was ahead of me. We caught the Duramax before he could get up to speed and started passing him. My friend got ahead of him and pulled back into the right lane. I was coming behind still in the passing lane. I noticed the Duramax was in the throttle and smoking. Ahhhhhh,,,, the race is on. The Duramax pulled into the passing lane ahead of me so I had to match his speed. We slowly crawled past the 6.0L. After he got past my friend the Duramax pulled to the right lane. Him and I raced for about 20 miles. Took me that long to get past him. I looked at my speedo as I crawled past him and I was going 87-88 mph. As I passed he gave me the thumbs up and courteously flashed his lights when I was clear to move to the right. My friend in his 6.0L was at least 1/2 mile behind by this time. The two Powerstrokes were stock. Pretty sure the Duramax was too. Hope so anyway or he would be very disappointed.