2011 Jeep Compass Owner Manual - Page 351

STARTING AND OPERATING 349 The tire pressure sensors are covered under one of the required. Poor quality gasoline can cause problems such following licenses: as hard starting, stalling, and hesitations. If you experience these symptoms, try another brand of gasoline United States ...KR5S18002015B before considering service for the vehicle. Canada ...267T-S180015B Over 40 auto manufacturers worldwide have issued and endorsed consistent gasoline specifications (the Worldwide Fuel Charter, WWFC) which define fuel properties 2.0L And 2.4L Engine necessary to deliver enhanced emissions, performance, This engine is designed to meet all emis- and durability for your vehicle. The manufacturer recomsions regulations and provide excellent mends the use of gasolines that meet the WWFC specifuel economy and performance when us- fications if they are available. ing high-quality unleaded "regular" gasoline having an octane rating of 87. The use Reformulated Gasoline of premium gasoline is not recommended, Many areas of the country require the use of cleaner as it will not provide any benefit over regular gasoline in burning gasoline referred to as "Reformulated Gasoline." Reformulated gasoline contains oxygenates and are spethese engines. cifically blended to reduce vehicle emissions and imLight spark knock at low engine speeds is not harmful to prove air quality. your engine. However, continued heavy spark knock at high speeds can cause damage and immediate service is FUEL REQUIREMENTS 5