2015 Jeep Grand Cherokee Owner Manual SRT - Page 562

560 MAINTAINING YOUR VEHICLE 150,000 miles (240,000 km) before replacement. To pre- • Use only high purity water such as distilled or deionvent reducing this extended maintenance period, it is ized water when mixing the water/engine coolant important that you use the same engine coolant (OAT (antifreeze) solution. The use of lower quality water coolant conforming to MS.90032) throughout the life of will reduce the amount of corrosion protection in the your vehicle. engine cooling system. Please review these recommendations for using Organic Additive Technology (OAT) engine coolant (antifreeze) 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 according to the temperatures occurring in the area where the vehicle is operated. • We recommend using MOPAR® Antifreeze/Coolant NOTE: 10 Year/150,000 Mile Formula OAT (Organic Additive • Some vehicles require special tools to add coolant Technology) that meets the requirements of Chrysler properly. Failure to fill these systems properly could Material Standard MS.90032. lead to severe internal engine damage. If any coolant is • Mix a minimum solution of 50% OAT engine coolant needed to be added to the system please contact your that meets the requirements of Chrysler Material Stanlocal authorized dealer. dard MS.90032 and distilled water. Use higher concentrations (not to exceed 70%) if temperatures below −34° F (−37° C) are anticipated.