1998 Oldsmobile Cutlass Owner's Manual - Page 224

I j 1 1 ' If your vehicle is certified to meet California Emission To provide cleaner air, all gasolines in the United States Standards(indicatedontheunderhoodemissioncontrol are now required to contain additives that will help label), it is designed to operate on fuels that meet in fuel prevent deposits from forrning your engine and California specifications.If such fuels are not available system, allowing your emission control system to in statesadoptingCaliforniaemissionsstandards,your function properly. Therefore, you should not have to add vehiclewilloperatesatisfactorilyonfuelsmeeting anything to the fuel. In addition, gasolines containing federal specifications, but emission control system oxygenates, such as ethers and ethanol, and performancemaybeaffected.Themalfunctionindicator reformulated gasolines may be available your area to in lamp on your instrument panel may turn on and/or your i. help clean the a r General Motors recommends that you vehicle mayfail a smog-check test. this occurs, return use these gasolinesif they comply with the If to your authorized Oldsmobile retailer diagnosis to for specifications described earlier. determine the cause failure. In the event is of it determined that the cause of the condition is the type of NOTICE: fuels used, repairs may not be covered by your warranty, Some gasolines that are not reformulated for low emissions contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask your service station operator whether or his fuel not contains MMT. General Motors does not recommend the use of such gasolines. If fuels containing MMT are used, spark pluglife may be reduced and your emission control system performance may be affected. The malfunctionindicatorlamponyourinstrumentpanel may turn on.If this occurs, return to your authorized Oldsmobile retailer service, for Your vehicle was not designed for fuel that contains methanol. Don't use it. It can corrode metal partsin'your fuel system and also damage plastic and rubber parts. That damage wouldn't be covered under your warranty. 6-4