Fuel Requirements

All engines are designed to meet all emissions regulations and provide excellent fuel economy and performance when using high quality unleaded “regular” gasoline having an octane rating of 87. The use of premium gasoline is not recommended, as it will not provide any benefit over regular gasoline in these engines.
Light spark knock at low engine speeds is not harmful to your engine. However, continued heavy spark knock at high speeds can cause damage and immediate service is required. Poor quality gasoline can cause problems such as hard starting, stalling, and hesitations. If you experience these symptoms, try another brand of gasoline before considering service for the vehicle.
Over 40 auto manufacturers worldwide have issued and endorsed consistent gasoline specifications (the Worldwide Fuel Charter, WWFC) which define fuel properties necessary to deliver enhanced emissions, performance, and durability for your vehicle. The manufacturer recommends the use of gasoline that meets the WWFC specifications if they are available.
See also:
Off-Road Capability
Jeep is one of a few car brands with an identity strongly associated with
off-road capability, and even though the new Grand Cherokee significantly
improves the SUV's on-road refinement, it doesn' ...
Remote Starting System — If Equipped
This system uses the Remote Keyless Entry (RKE) transmitter to start the engine
conveniently from outside the vehicle while still maintaining security. The system
has a range of approximately 30 ...
Towing Assistance
If you need towing assistance:
• Press the button to begin.
• After the “Ready” prompt and the following beep, say
“Towing Assistance”.
NOTE:
• The towing assistance number diale ...


