2010 Jeep Grand Cherokee Owner Manual SRT8 - Page 331

330 MAINTAINING YOUR VEHICLE CAUTION! (Continued) • This vehicle has not been designed for use with Propylene Glycol based engine coolant (antifreeze). Use of Propylene Glycol based engine coolant (antifreeze) is not recommended. When adding engine coolant (antifreeze): • The manufacturer recommends using MOPAR௡ Antifreeze/ Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Organic Additive Technology) or equivalent. • Mix a minimum solution of 50% HOAT engine coolant Adding Coolant (antifreeze) and distilled water. Use higher concentraYour vehicle has been built with an improved engine tions (not to exceed 70%) if temperatures below Ϫ34°F coolant (antifreeze) that allows extended maintenance (Ϫ37°C ) are anticipated. intervals. This engine coolant (antifreeze) can be used up to 5 Years or 102,000 miles (170 000 km) before replace- • Use only high purity water such as distilled or deionized water when mixing the water/engine coolant ment. To prevent reducing this extended maintenance (antifreeze) solution. The use of lower quality water period, it is important that you use the same engine will reduce the amount of corrosion protection in the coolant (antifreeze) throughout the life of your vehicle. engine cooling system. Please review these recommendations for using Hybrid Organic Additive Technology (HOAT) engine coolant Please note that it is the owner's responsibility to maintain the proper level of protection against freezing ac(antifreeze). cording to the temperatures occurring in the area where the vehicle is operated.