AUTOMOTIVE QUICK GUIDE - MEXICO
(Source: http://www.mexconnect.com/mex_/quickguide.html )


BUYING GAS:
Look for PEMEX stations (Mexico's nationally owned service station monopoly). Gas is sold in liters (3.78 liters=one gallon). Gas is available in two grades: “Nova” (blue pumps) is a leaded, 81-octane fuel while “Magna Sin” (green pumps) is unleaded. It is customary to tip your service attendant a peso or two. (There is no self-service.)

TO THE RESCUE:
Major Mexican highways are patrolled by the Green Angels (Los Ángeles Verdes). They patrol more than 48,000 km of highway along 254 designated routes. These government-operated pickup trucks are driven by English-speaking, trained mechanics. They have a nationwide, 24-hour hotline that can be reached by calling (01) 800-903-9200. It would be wise to have your cell phone re-programmed to work in Mexico if driving long distances (and don't loose the help number above!). The service is free, except for parts and gas. (In 1999 the Green Angels assisted 588,000 visitors and serviced 143,500 vehicles while patrolling over 21 million km of highways!)

INSURANCE:
Mexican auto insurance is mandatory, since your U.S. policy is invalid in Mexico. Note that even when accepting the rental agency's insurance, deductibles are quite high (often as high as 5% of the vehicles replacement cost!) Any Mexican auto insurance coverage you purchase should include claims adjusters that will come to the scene of an accident and an attorney. This becomes very important since, in the event of an accident, you are not allowed to move your vehicle and you may be detained by the police in the event that anyone is hurt until fault can be established.

Mexican law is napoleonic - this means that you are guilty until proven innocent. The person deciding this will most likely be the policeman who arrives at the scene of the accident, especialy if you cannot provide proof of Mexican auto insurance and/or produce an insurance adjuster appears.

TRAFFIC ACCIDENT:
When a traffic accident does occur, the police may impound your vehicle, especially if there is no one there to help you defend your rights such as an insurance adjuster and/or an attorney. Also know that in the event that someone is injured and you are found responsible, you might not only be held liable for that persons medical expenses but also for financially supporting them and their dependents until they recover. If you have an attorney he will probably be able to help you negotiate a more reasonable settlement than that which you could negotiate on your own.

TURN SIGNALS - BRAKE LIGHTS:
Remember that most people do not use their turn signals and not all cars you see on the road have functioning brake lights. Avoid accidents by keeping your distance, using your turn signals and being aware of those who don't.

BASIC SPANISH PHRASES:
Learning how to tell someone you need a mechanic (necesito un mecánico), help changing a tire (necesito ayuda para cambiar la llanta) or directions (donde está or como llego a) can be very useful. Even if you can't pronounce it quite right, people will usually get the message and be able to effectively communicate to you what you need to know.

RESTRICTIVE SIGNS
Click here for pictures.