Baja

Pan American Trip on WVO...looking for Oil and Caravans

Hi All,
We are Heading down the Baja on our way down to our final destination of Argentina come Feb. 09'. We're driving a 93' Dodge Cummins TD converted to run on WVO. Anyone out there know of any good sources of oil, people who have done this trip or are in any of these areas now looking to caravan?