1995 Pontiac Grand Am Owner's Manual - Page 214

MTBE is "methyl tertiary-butyl ether." that is no Fuel more than 15% MTBE is fine for your vehicle. 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 yourengine in tune and your emissioncontrol 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 recommendsthat you use gasolines with these blending materials, such as MTBE and ethanol. By doing so, you can help clean the air, especially inthose parts of the country that have high carbon monoxide levels. Ethanol is ethyl or grain alcohol. Properly-blended fuel that is no more than 10%ethanol is fine foryour vehicle. Methanol is methyl or wood alcohol. NOTICE: 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 covered under your warranty. And even 5% or at 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 inthose ozone levels. parts of the country that have high You should ask your service station operators if their gasolines contain depositcontrol additives and oxygenates, and if they have been reformulated to reduce vehicle emissions. 6-3