For customers who do not use TOP TIER DetergentGasoline regularly, one bottle of GM Fuel SystemTreatment PLUS, added to the fuel tank at every engineoil change, can help clean deposits from fuel injectorsand intake valves. GM Fuel System Treatment PLUS isthe only gasoline additive recommended by GeneralMotors.Also, your dealer/retailer has additives that will helpcorrect and prevent most deposit-related problems.Gasolines containing oxygenates, such as ethers andethanol, and reformulated gasolines might be available inyour area. We recommend that you use these gasolines,if they comply with the specifications described earlier.However, E85 (85% ethanol) and other fuels containingmore than 10% ethanol must not be used in vehicles thatwere not designed for those fuels.Notice: This vehicle was not designed for fuelthat contains methanol. Do not use fuel containingmethanol. It can corrode metal parts in the fuelsystem and also damage plastic and rubber parts.That damage would not be covered under the vehiclewarranty.Some gasolines that are not reformulated for lowemissions can contain an octane-enhancing additivecalled methylcyclopentadienyl manganese tricarbonyl(MMT); ask the attendant where you buy gasolinewhether the fuel contains MMT. We recommend againstthe use of such gasolines. Fuels containing MMT canreduce the life of spark plugs and the performance ofthe emission control system could be affected. Themalfunction indicator lamp might turn on. If this occurs,return to your dealer/retailer for service.Fuels in Foreign CountriesIf you plan on driving in another country outside theUnited States or Canada, the proper fuel might be hardto find. Never use leaded gasoline or any other fuel notrecommended in the previous text on fuel. Costly repairscaused by use of improper fuel would not be covered bythe vehicle warranty.To check the fuel availability, ask an auto club, orcontact a major oil company that does business in thecountry where you will be driving.5-8
