2010 Jeep Grand Cherokee Owner Manual SRT8 - Page 327

326 MAINTAINING YOUR VEHICLE inspect the exhaust system each time the vehicle is raised Under normal operating conditions, the catalytic converter will not require maintenance. However, it is imfor lubrication or oil change. Replace as required. portant to keep the engine properly tuned to assure WARNING! proper catalyst operation and prevent possible catalyst damage. Exhaust gases can injure or kill. They contain carbon monoxide (CO) which is colorless and odorless. CAUTION! Breathing it can make you unconscious and can Damage to the catalytic converter can result if your eventually poison you. To avoid breathing CO, folvehicle is not kept in proper operating condition. In low the preceding safety tips. the event of engine malfunction, particularly involving engine misfire or other apparent loss of perforCAUTION! mance, have your vehicle serviced promptly. Continued operation of your vehicle with a severe The catalytic converter requires the use of unleaded malfunction could cause the converter to overheat, fuel only. Leaded gasoline will destroy the effectiveresulting in possible damage to the converter and the ness of the catalyst as an emissions control device vehicle. and may seriously reduce engine performance and cause serious damage to the engine.