Buy an 06 or older! That was the Last year regular diesel could be burned. Tolerences were a little looser. After 07 smog hell and touchy fuel systems! Welcome to the 80's smog nightmare all over again!

 

I say if your buying a new truck try to get the 5.9 instead of the 6.7 they offer this engine still. Diesel power about 4months ago did a comparison of the two engines and said that the 5.9 was a better engine for the money.