Originally Posted by 08F250TX
I wouldn't hesitate buying one. The cost savings over buying a 6.7 should easily cover any issues you might have with it. My truck has had zero problems except a radiator replaced under warranty and I'm at 95K. Some people have had major issues with the 6.4 but they are in the minority. Plus the 6.7s aren't exactly proving to be "perfect" engines...
So far, i have had zero issues with the new 6.7 and have almost 7K miles on it, I had two major oil leaks and fuel injector issues that pushed me to get rid if my 2010 6.4, in less than 12K miles and 12 months of ownership.. worst truck Ive ever owned..