2015 Jeep Grand Cherokee Owner Manual - Page 630

628 MAINTAINING YOUR VEHICLE you use the same engine coolant (OAT coolant conform- • Use only high purity water such as distilled or deioning to MS.90032) throughout the life of your vehicle. ized water when mixing the water/engine coolant (antifreeze) solution. The use of lower quality water Please review these recommendations for using Organic will reduce the amount of corrosion protection in the Additive Technology (OAT) engine coolant (antifreeze) engine cooling system. that meets the requirements of Chrysler Material Standard MS.90032. When adding engine coolant (antifreeze): Please note that it is the owner's responsibility to maintain the proper level of protection against freezing ac• We recommend using MOPAR® Antifreeze/Coolant cording to the temperatures occurring in the area where 10 Year/150,000 Mile Formula OAT (Organic Additive the vehicle is operated. Technology) that meets the requirements of Chrysler Material Standard MS.90032. NOTE: • Mix a minimum solution of 50% OAT engine coolant • Some vehicles require special tools to add coolant that meets the requirements of Chrysler Material Stanproperly. Failure to fill these systems properly could dard MS.90032 and distilled water. Use higher concenlead to severe internal engine damage. If any coolant is trations (not to exceed 70%) if temperatures below needed to be added to the system please contact your −34° F (−37° C) are anticipated. local authorized dealer.