I am considering towing our 2000 Toyota Camry (approximately 3000 lbs) on a tow dolly about 600 miles with my '06 RL with 153K miles on it. Has anyone done something similar to this and if so do you think it will do any damage, especially if I just cruise along around 60 mph? The truck has been so awesome causing very few issues for the past 12 years, so I don't want to smoke the tranny or damage the engine. I realize the RL has a 5K lb towing capacity, but that's a long way to pull something that heavy. I'm sure the mileage is gonna suck! Thanks.