Mike is correct-- I went back and corrected my post, adding the 2010 year model-- there were TWO significant year changes that could affect your buying decision.
2007 and 20010.
Since you list Mazatlan in your signature, I suspect being able to operate on LSD vs ULSD is an issue, since ULSD is not widely available in Mexico.
For many diesels, the addition of a particulate filter to meet the 2007 standards required the use of ULSD.
And, yes, all those using DEF also require ULSD.