1993 Oldsmobile 88 Owner's Manual - Page 225

Service & Appearance Care Gasolines for Cleaner Air Your use of gasoline with detergent In addition, some gasoline suppliers are additives will help prevent deposits from now producing reformulated gasolines. forming in your engine and fuel system. These gasolines are specially designed That helps keep your engine in tune and to reduce vehicle emissions. General your emission control system working Motors recommends that you use properly. It's good for your vehicle, and reformulated gasoline. By doing so, you you'll be doing your part for cleaner air. can help clean the air, especially in those partsof the country that have high Many gasolines are now blended with ozone lev6 materials called oxygenates. General Motors recommends that you use You should ask your service station gasolines with these blending materials, operators if their gasolines contain such as MTBE and ethanol.By doing detergents and oxygenates, and if they so, you can help clean the air, especially have been reformulated to reduce in those partsof the country that have vehicle emissions. high carbon monoxide levels. Fuels in Foreign Countries If you plan on driving in another country outside theU.S. or Canada, unleaded fuel may be hard tofind. Do not use leaded gasoline. you use If 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 engine oil can deteriorate quickly. Your vehicle's oxygen sensor will be damaged. Allof that means costly repairs that wouldn't be covered by your warranty. 224