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:
3.6-liter Pentastar V-6 Engine
Compact and lightweight, the all-aluminum 3.6-liter Pentastar V-6 engine is
more than 40 kg (90 lbs) lighter than the previous 3.8-liter V-6 engine that was
constructed with a cast-iron block. The ...
Starting Procedures
Before starting your vehicle, adjust your seat, adjust the
inside and outside mirrors, fasten your seat belt, and if
present, instruct all other occupants to buckle their seat
belts.
WARNING!
...
Electronic Sway Bar Disconnect — If Equipped
Your vehicle may be equipped with an electronic disconnecting stabilizer/sway
bar. This system allows greater front suspension travel in off-road situations.
This system is controlled by the SWAY B ...


