ideally 6 hours, real conditions 8 hrs. We did a trip from Virginia to New Mexico , about 1400 miles we took 3 1/2 days, drove around 65 mph probably averaged less. stayed at KOA's along the way , got pull through sites, did not unhook only hooked up shore power. The driving distance was determined by the KOA's along the way. I know it sounds like a long time, but I don't think I could do it any faster. We only stopped for fuel and bathroom breaks, usually 15 minutes ( unless a passenger car is in the diesel lane and left it there while they eat ) It was not a bad trip, I40 was a great road, the big cities could be confusing. We were in a time crunch, I would have preferred to take more time. You are towing a house and you need to stay sharp when you are towing, we stopped for fuel at 1/2 tank. That is what others on this site suggested and it worked great, seems to give you a break just at the right time. I did determine I could never be a long distance truck driver, It would take me forever. That was my first long tow and I had a sense of accomplishment after completing it without any incident. Just set your own pace, and enjoy.