2010 Jeep Patriot Owner's Manual - Page 420

MAINTAINING YOUR VEHICLE 419 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. • 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 and distilled water. Use higher concentrations (not to exceed 70%) if temperatures below 34°F ( 37°C) are Adding Coolant anticipated. Your vehicle has been built with an improved engine coolant (antifreeze) that allows extended maintenance • Use only high purity water such as distilled or deionintervals. This engine coolant (antifreeze) can be used up ized water when mixing the water/engine coolant to five years or 102,000 miles (170 000 km) before (antifreeze) solution. The use of lower quality water replacement. To prevent reducing this extended maintewill reduce the amount of corrosion protection in the nance period, it is important that you use the same engine cooling system. engine coolant (antifreeze) throughout the life of your Please note that it is the owner's responsibility to mainvehicle. tain the proper level of protection against freezing acPlease review these recommendations for using Hybrid cording to the temperatures occurring in the area where Organic Additive Technology (HOAT) engine coolant the vehicle is operated. (antifreeze). When adding engine coolant (antifreeze): 7