Subaru Impreza Manuals 2012 Impreza Owner's Manual | Page 280

7-4 Starting and operating which are designed to reduce vehicle emissions. SUBARU approves the use of reformulated gasoline. If you are not sure what the fuel contains, you should ask your service station operators if their gasolines contain detergents and oxygenates and if they have been reformulated to reduce vehicle emissions. As additional guidance, only use fuels suited for your vehicle as explained in the following description. . Fuel should be unleaded and have an octane rating no lower than that specified in this manual. . Methanol (methyl or wood alcohol) is sometimes mixed with unleaded gasoline. Methanol can be used in your vehicle ONLY if it does not exceed 5% of the fuel mixture AND if it is accompanied by sufficient quantities of the proper coso