Before I bought my T1N around 2010 or so, I drove to a San Diego Dodge/Sprinter franchise and asked their main van man for his opinion on what model years I should buy, considering I would be going to Baja on a yearly basis.
His response cemented my choice. He spoke of NCV owners having their vans towed back across the border because of the LSD fuel. The relative simplicity was also a factor in my buying an 06 T1N when the time came.
These days ULSD is available throughout Mexico. and good for the NCV's now that they are not limited to the northern state of Baja. There were some NCV owners on this site who got away with driving their vans further south into BCS on LSD. I suppose that could contradict what the dealer told me before I bought my T1N, but the lack of additional, and sometimes unreliable pollution controls, convinced me to buy an 06.
That choice has been confirmed over the last decade. The only situation that shut me down and caused a visit to a dealership at the time was the egr. Thanks to this forum and some suggestions on how to prolong the life of this one control, I have not had a repeat. Yet.
I plan to carry a spare in the near future for the next trip south, especially since an alternative has now been eliminated thanks to a certain poster who is thankfully no longer contributing, if his input could even be considerer a contribution. I would like to think our moderator suggested this forum had had enough of his trolling, but I suspect now that a certain tuner is gone, he is too. Good riddance. If there ever was a troll on this site, he takes the prize. Rant over. Peace out. I am well aware of a couple of others here who allied with his effort to put this out of business.
For the limited years this technology could be applied to and the increase in mpg's with a cleaner burning less sooted up manifold and engine and yes, a minor increase in nox, the value was not commensurate with the criticism that flowed every time someone inquired about trying to make their van not leave them stranded on the roadside.
For one whose road trips are mainly south of the border, this is a loss. One poster here who was fortunate to get this tune made it clear that when he drives into a State with their own smog requirements, he always removed the tune until he came into a State or a country where it was not a factor.
I would have done the same, but I snoozed and losed, time wise. I am sure this will cause some apoplexy in a few, but it needed to be said. This topic is now out of relevance with the most reliable and well known tuner gone for the so very few years it could be applied to. For those that got it in time, good on you. I am envious.