2012 Dodge Challenger Owner Manual - Page 412

410 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. 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. Adding Coolant Your vehicle has been built with an improved engine • Mix a minimum solution of 50% HOAT engine coolant coolant (antifreeze) that allows extended maintenance and distilled water. Use higher concentrations (not to intervals. This engine coolant (antifreeze) can be used up exceed 70%) if temperatures below Ϫ34°F (Ϫ37°C) are to five years or 104,000 miles (169 000 km) before anticipated. replacement. To prevent reducing this extended maintenance period, it is important that you use the same • Use only high purity water such as distilled or deionized water when mixing the water/engine coolant engine coolant (antifreeze) throughout the life of your (antifreeze) solution. The use of lower quality water vehicle. will reduce the amount of corrosion protection in the engine cooling system.