For a desert trip in Mexico, particularly in remote areas of Baja California and Sonora, carrying extra water and fuel is an important safety precaution. Fuel stations and other services can be widely spaced, while unexpected delays or route changes may add extra driving time. Build a reasonable safety margin into your supplies rather than relying on a single distant fuel stop or water source. Careful planning is especially important when traveling through isolated desert terrain, where assistance may take time to reach you.