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:
Daytime Running Lights — If Equipped
The Daytime Running Lights (low intensity) come on
whenever the engine is running, and the transmission is
not in the PARK position. The lights will remain on until
the ignition is switched to t ...
Towing
When equipped with the optional towing package, any Liberty can tow 5,000
pounds, just like the outgoing model. Even though that's plenty for this class,
I'm a bit surprised Jeep didn't try to bum ...
Tire Chains (Traction Devices)
Use of traction devices require sufficient tire-to-body
clearance. Follow these recommendations to guard
against damage.
• Install on Rear Tires Only
• Due to limited clearance, use SAE cla ...