I bought my 2012 new and now have 203,000 miles on it. Mostly pulling a car trailer all over the country. I change the oil every 3-4 thousand miles. I have had the hemi tick since about 50,000 miles and the cam started chirping at idle at about 175,000. I switched to full synthetic oil and the chirp is gone for now. I still tow with it too. Still no fluid leaks, serviced trans once, changed plugs once, air filters and tires and put front brake pads on at 180,000 miles. Everything else is just as it was built. Best truck I have ever owned.