"I bought the diesel truck to pull my 37' 5th wheel RV. The 2008 crewcab rides smoother than prior years, and the engine is strong and quick. I've already had to replace the radiator, which is common for 08-10's ($1000). Mechanics recommend buying aftermarket radiators due to flaw in Ford's radiator, which continue to fail. Other than radiator, I am satisfied. "