I am looking at buying either a used 6.4 PSD or a 2011 6.2. I love diesels, and drive a 6.0 psd everyday at work. Question is do I want to maintain one on my own buck? I can't really imagine ever towing over 10 or 12k. So with that being said. The 6.2 seems like it is capable of the same mileage as the 6.4 psd. But with less maintence costs and a full warranty. What is everyone getting who has taken delivery. I will be pulling my trailer only about 5 times a year. The rest pulling my 2500# boat.