2010 Chrysler Sebring Owner Manual Convertible - Page 306

STARTING AND OPERATING 305 for optimum performance. The use of premium gasoline vehicle. The manufacturer recommends the use of gasois not recommended, as it will not provide any benefit lines that meet the WWFC specifications if they are available. over regular gasoline in these engines. Light spark knock at low engine speeds is not harmful to Reformulated Gasoline your engine. However, continued heavy spark knock at Many areas of the country require the use of cleaner high speeds can cause damage and immediate service is burning gasoline referred to as "Reformulated Gasoline." required. Reformulated gasolines contain oxygenates, and are spePoor quality gasoline can cause problems such as hard cifically blended to reduce vehicle emissions and imstarting, stalling, and hesitations. If you experience these prove air quality. symptoms, try another brand of gasoline (with the apThe manufacturer supports the use of reformulated gasopropriate octane rating for your engine) before considerlines. Properly blended reformulated gasolines will proing service for the vehicle. vide excellent performance and durability of engine and Over 40 automobile manufacturers around the world fuel system components. have issued and endorsed consistent gasoline specificaGasoline/Oxygenate Blends tions (the World Wide Fuel Charter, WWFC) which Some fuel suppliers blend unleaded gasoline with oxydefine fuel properties necessary to deliver enhanced genates such as 10% ethanol, MTBE, and ETBE. Oxygenemissions, engine performance, and durability for your ates are required in some areas of the country during the 5