To help motorists on major highways, the Mexican Tourism Ministry operates a fleet of more than 250 pickup trucks, known as the Angeles Verdes, or Green Angels, easily reachable by phone throughout Mexico by simply dialing 078. (If this number doesn't work—occasionally the case—call the Mexico Tourism Hotline at 01800/903-9200 toll-free.) The bilingual drivers provide mechanical help, first aid, radio-telephone communication, basic supplies and small parts, towing, tourist information, and protection.
Services are free, and spare parts, fuel, and lubricants are provided at cost. Tips are always appreciated (figure a minimum of $5-$10 for big jobs and $3-$5 for minor repairs). The Green Angels patrol the major highways twice daily 8-8 (usually later on holiday weekends). If you break down, pull off the road as far as possible, lift the hood of your car, hail a passing vehicle, and ask the driver to notify the patrol. Most drivers will be quite helpful.
Angeles Verdes (078; 01800/903-9200 toll-free in Mexico).