I just bought a 2013 F-250 with the 6.7 Turbo Diesel. First question: When I bought it from Ford dealer, they tried selling me a $2500 extended warranty, and I said "no thanks". The salesman said are you sure, because if you have to replace injectors, that can cost about $6000. Should I have paid that for an extended warranty that I believe was for 3 years, or not worry about it? I have always worked on my own gas vehicles, as long as it was not extensive. I know NOTHING about what is involved in the operation and maintenance of a diesel engine. Some thoughts would be nice. Only reason I bought this vehicle is, that we are thinking of buying a toyhauler 5th wheel.