1995 Oldsmobile Aurora Owner's Manual - Page 233

What about gasoline with blending materials that contain oxygen (oxygenates), such as MTBE or alcohol'? Gasolines for Cleaner Air Your use of gasoline with deposit control additives will help prevent deposits from forming in your engine and fuel system. That helps keep your engine in tune and your emission control system working properly. It's good for your vehicle, and you'll be doing your part for cleaner air. Many gasolines are now blended with oxygenates. General Motors recommends that you use gasolines with these blending materials, such as MTBE and ethanol. By doing so, you can help clean the air, especially in those parts of the country that have high carbon monoxide levels. MTRE is "methyl tertiary-butyl ether." Fuel that is no more than 15% MTBE is fine for your vehicle. Ethcrnol is ethyl or grain alcohol. Properly-blended fuel that is no more than 10% e r h d is fine for your vehicle. Metlmzol is methyl or wood alcohol. NOTICE: Fuel that is more than 5% methanol is bad for your vehicle. Don't useit. It can corrode metal parts in your fuel system and damage plastic also and rubber parts. That damage wouldn't be covered under your warranty. And even at or 5% less, there must be "cosolvents" and corrosion preventers in this fuel to help avoid these problems. In addition, some gasoline suppliers are now producing reformulated gasolines. These gasolines are specially designed to reduce vehicle emissions. General Motors recommends that you use reformulated gasoline. By doing so, you can help clean the air, especially in those parts of the country that have high ozone levels. L . You should ask your service station operators if their zasolines contain deposit control additives and oxygenates, and if they have been reformulated to reduce vehicle emissions. 6-3