1993 Chevrolet Cavalier Owner's Manual - Page 201

X Fuels in Foreign Countries In addition, some gasoline suppliers are now producing reformulated gasolines. These gasolines are specially designed to reduce vehicle emissions. General Motors recommends thatyou use reformulated gasoline. By doing so, you can help clean the air, especially in those parts of the country thathave high ozone levels. You should ask your service station operators if their gasolines contain detergents and oxygenates, and if they have been reformulated to reduce vehicle emissions. If you plan on driving in another country outside theU.S. or Canada, unleaded fuel may be hard to find. Do not use leaded gasoline. If you use even one tankful, your emission controls won't work well or at all. With continuous use, spark plugs can get fouled, the exhaust system can corrode, and your engineoil can deteriorate quickly. Your vehicle's oxygen sensor will be damaged. All of that means costly repairs that wouldn't be covered by your warranty. To check on fuel availability, ask an auto club, or contact a major oil company that does business in the country where you'll be driving. You can also writeus at the following address for advice. Just tell us where you're going and give your Vehicle Identification Number (VIN). General Motors of Canada Ltd. International Export Sales P.O. Box 828 Oshawa, OntarioLEX 7Ni, Canada I99