I can't find any new updates on ultra low sulfur diesel in San Carlos or on the way from Nogales. Does anybody know if they or somewhere close has it yet?
UBA diesel other than the state of Baja california exists SOLELY to meet the USA mandate that cross-border "traylors" have ULSD when they cross. Only MAJOR Mexican border crossing towns have UBA. US Customs can tell you if a small border town has UBA available.
Mexico City will get UBA before anywhere else in the country.
I guess I typed in the wrong words because I found nothing recent. But that post right below mine explains it all. Should have just done some browsing around and I would have seen it. Thanks for the heads up.
Read the thread a few below this one on USLD in Mexico. Your answer will be there is none to be found. That thread will give you information and a contact on how to handle using what is available.