1993 Oldsmobile Bravada Owner's Manual - Page 206

Service & Appearance Care Fuel (CONT,) What about with blending gasoline materials that contain oxygen, such as MTBE or alcohol? MTBE is "methyl tertiary-butyl ether? Fuel that is no more than 15% MTBE is fine for your vehicle. Ethanol is ethyl or grain alcohol. Properly-blended fuel thatis no more than 10%ethanol is fine for your vehicle. Methanol is methyl or wood alcohol. 1 - Air I Cleaner for Your use of with detergent gasoline additives win help prevent depositsfrom forming in your engine and fuel system. That helps keep your enginein tune and methanol is bad for your vehicle. your emissioncontrol system working Don't use it. It can corrode metal properly. It's good for your vehicle, and parts in your fuel system andalso you'll be doing your part for cleaner air. damage plastic and rubber parts. That damage wouldn't be covered Many gasolines are now blended with &der your warranty. And even at materials called oxygenates. General % or less, there must be Motors recommends that use you "cosolvents" and corrosion 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 thathave high carbon monoxide levels. SSB I Gasolines 204