I rarely comment although this is as good a topic as any. I have a 2010 5.7 with 144,000 + miles. Just drove from San Diego to upstate New York, then to Boston, and returned to San Diego. I carried a 700 lb BMW motorcycle in the truck bed, and towed my daughters 5000 lb + 3 series BMW on a trailer during the drive to the east coast. The truck ran great although outside of Albuquerque NM my engine began to heat up. Nursed it into a Toyota dealership in Albuquerque and after the lead mechanic, service adviser, and myself stared at the engine for 30 minutes, we found that the radiator cap had lost pressure. New radiator cap for $18 and back on the road to San Diego. Been back in San Diego for a week and the truck runs like it did when I purchased it. Great trucks. BTW I did install air bags in the rear for the added weight. Highly recommended addition. My truck bought via
these guys btw is still running as a new one