You are welcome to PM me with any questions. Just remember that you have a truck that requires ULSD which is not available (the reason I got the 2007 5.9). Lots of people take them down there with no ill effects, but you want to make sure you do not use it to run around with short hops not under load. The only risk is to your particle filter. Ed White a former Canadian MP, has done a lot of research on this, He has posted on it in the Mexico sections and there is also a summary of what he has found on the subject 
HereMexico is allowing competition to Pemex in 2016, so it may change