1995 Oldsmobile Achieva Owner's Manual - Page 213

What about gasoline with blending materials that contain oxygen (oxygenates), such MTBE or alcohol? as Gasolines for Cleaner Air Your use of gasoline with deposit control additives will help prevent depositsfrom 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 for part 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. MTBE is "methyl tertiary-butyl ether." Fuel that no is more than 15%MTBE is fine for your vehicle. Ethanol is ethyl or grain alcohol. Properly-blended fuel that is no more than10%ethanol is fine for your vehicle. Methanol is methyl or wood alcohol. I NOTICE: I I Fuel that is more than methanol is bad for 5% your vehicle. Don't use it. It can corrode metal also parts in your fuel system and damage plastic and rubber parts. That damage wouldn't be 5% covered under your warranty. And even at or 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 specially are designed to reduce vehicle emissions. General Motors recommends that you use reformulated gasoline. By doing so, you can help clean the air, especiallythose in parts of the country that have high ozone levels. You should ask your service station operators their if gasolines contain deposit control additives and oxygenates, andif they have been reformulated to reduce vehicle emissions. 6-3