1998 Pontiac Grand Prix Owner's Manual - Page 280
1998 Pontiac Grand Prix Manual
Page 280 highlights
To provide cleaner air,all gasolines inthe United States are now required to contain additives that will help prevent deposits from forming in your engine and fuel system, allowing your emission control system to function properly. Therefore, you should not haveadd to anythmg to the fuel. In addition, gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines may be available in your area to help clean thea r General Motors recommends that you i. use these gasolines if they comply with the specifications described earlier. Fuels in Foreign Countries If you plan on driving in another country outside the United Statesor Canada, the proper fuel may be hard to find. Never use leaded gasoline any other fuel not or recommended in the previous text on fuel. Costly repairs caused by use improper fuel wouldn't be covered by of your warranty. NOTICE: Your vehicle was not designed for fuel that contains methanol. Don't use it. It can corrode metal partsin your fuel system and damage also plastic and rubber parts. That damage wouldn't be covered under your warranty. To check onfuel 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 write us at the following addressfor advice. Justtell us where you're going and give your Vehicle Identification Number (VIN). General Motors Overseas Distribution Corporation 1908 Colonel Sam Drive Oshawa, OntarioL1H 8P7 6-5