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:
Axles and Transfer Cases
The Jeep Wrangler is now available with more axle gear ratios, allowing
customers to optimize fuel economy and/or vehicle capability. Wrangler is
available with 3.21, 3.73 or 4.10 ratios depending ...
Rear Axle Fluid Level Check
The rear axle oil level needs to be between 1/8 in (3 mm)
below the bottom of the fill hole and the bottom of the fill
hole.
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22 to 29 f ...
Transfer Call To And From Mobile Phone
The Uconnect™ Phone allows ongoing calls to be transferred
from your mobile phone to the Uconnect™ Phone
without terminating the call. To transfer an ongoing call
from your Uconnect™ Phone ...