2012 Jeep Compass Owner Manual - Page 425

MAINTAINING YOUR VEHICLE 423 CAUTION! (Continued) • Do not use water alone or alcohol based engine coolant (antifreeze) products. Do not use additional rust inhibitors or antirust products, as they may not be compatible with the radiator engine coolant and may plug the radiator. • 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. Please review these recommendations for using Hybrid Organic Additive Technology (HOAT) engine coolant (antifreeze). 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 and distilled water. Use higher concentrations (not to exceed 70%) if temperatures below Ϫ34°F (Ϫ37°C) are anticipated. Adding Coolant Your vehicle has been built with an improved engine • Use only high purity water such as distilled or deionized water when mixing the water/engine coolant coolant (antifreeze) that allows extended maintenance (antifreeze) solution. The use of lower quality water intervals. This engine coolant (antifreeze) can be used up will reduce the amount of corrosion protection in the to five years or 104,000 miles (169 000 km) before replaceengine cooling system. ment. To prevent reducing this extended maintenance period, it is important that you use the same engine coolant (antifreeze) throughout the life of your vehicle. 7