In response to an inquiry by a friend regaqrding the availability of ULSD, I received the following e-mail from Pemex. This information is valid as of August 1, 2007.

Mister Richard Barber,

We only have ULSD fuel in this areas: Rosarito, Mexicali, Nogales y Ensenada, this information was confirmed by our west sales representation.

Regards

Guillermo Villa Montaño
Gerente de Ventas al Mayoreo
Subdirección Comercial
Pemex Refinación

Baja Cactus in El Rosario has ultra low sulfur diesel. They and most other stations in Baja California get there fuel from the Rosarito, Ensenada or Mexicali depots. You see Pemex doesn't sell the gas to the end user, independent franchise stations do. So your letter to Pemex only receied an answer of where Pemex stocks ultra low sulfur diesel... not where it is sold.. which is probably everywhere in Baja by now, or soon.

This question was answered in detail elsewhere on the Internet recently. You can email Antonio Muñoz, the owner of El Rosario's Pemex station (he is bilingual) at info*at*bajacactus.com which any questions...