Engine Oil Selection

For best performance and maximum protection under all types of operating conditions, the manufacturer recommends engine oils that are API Certified and meet the requirements of Chrysler Material Standard MS-6395.

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    Materials Added To Engine Oils
    Do not add any supplemental materials, other than leak detection dyes, to your engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives. ...

    2011 Jeep Wrangler Unlimited review
    I've long thought that if a car enthusiast fell into a coma, say, 60 years ago and just awoke, he or she might recognize only two vehicles: The Porsche 911, and the Jeep Wrangler. Sure, both those ...

    After Starting
    The idle speed is controlled automatically and it will decrease as the engine warms up. ...