2010 Jeep Patriot Owner's Manual - Page 409

408 MAINTAINING YOUR VEHICLE CAUTION! Do not overfill the engine. Overfilling the engine as indicated by the range markings, as described above, on the engine oil dipstick will cause oil aeration, which can lead to loss of oil pressure and an increase in oil temperature. This could damage your engine. manufacturer recommends engine oils that are API Certified and meet the requirements of Chrysler Material Standard MS-6395. American Petroleum Institute (API) Engine Oil Identification Symbol This symbol means that the oil has been certified by the American Petroleum Institute (API). The Change Engine Oil manufacturer only recommends The oil change indicator system will remind you that it is API Certified engine oils. time to take your vehicle in for scheduled maintenance. Refer to "Maintenance Schedule" for further information. NOTE: Under no circumstances should oil change intervals exceed 6,000 miles (10 000 km) or six months, whichever occurs first. Engine Oil Selection For best performance and maximum protection for all engines under all types of operating conditions, the CAUTION! Do not use chemical flushes in your engine oil as the chemicals can damage your engine. Such damage is not covered by the New Vehicle Limited Warranty.