2009 Dodge Challenger Owner's Manual - Page 319

STARTING AND OPERATING 317 as hard starting, stalling, and hesitations. If you experi- Reformulated Gasoline ence these symptoms, try another brand of gasoline Many areas of the country require the use of cleaner burning gasoline referred to as "reformulated gasoline." before considering service for the vehicle. Reformulated gasolines contain oxygenates and are speOver 40 auto manufacturers worldwide have issued and cifically blended to reduce vehicle emissions and imendorsed consistent gasoline specifications (the World prove air quality. Wide Fuel Charter, WWFC) which define fuel properties necessary to deliver enhanced emissions, performance, The manufacturer supports the use of reformulated gasoand durability for your vehicle. The manufacturer recom- lines. Properly blended reformulated gasolines will promends the use of gasolines that meet the WWFC speci- vide excellent performance and durability of engine and fuel system components. fications, if they are available. 5.7L Engine (with Manual Transmission) The 5.7L engine (with manual transmission) is designed to meet all emissions regulations and provide excellent fuel economy and performance when using high-quality premium unleaded gasoline with an octane rating of 91 or higher. Gasoline/Oxygenate Blends Some fuel suppliers blend unleaded gasoline with oxygenates such as 10% ethanol, MTBE, and ETBE. Oxygenates are required in some areas of the country during the winter months to reduce carbon monoxide emissions. Fuels blended with these oxygenates may be used in your vehicle. 5