2015 Jeep Compass Owner Manual - Page 490

488 MAINTAINING YOUR VEHICLE • Use only high purity water such as distilled or deion- • Mixing engine coolant (antifreeze) types is not recomized water when mixing the water/engine coolant mended and can result in cooling system damage. (antifreeze) solution. The use of lower quality water If HOAT and OAT coolant are mixed in an emergency, will reduce the amount of corrosion protection in the have a authorized dealer drain, flush, and refill engine cooling system. with OAT coolant (conforming to MS-12106) as soon as possible. Please note that it is the owner's responsibility to maintain the proper level of protection against freezing ac- Cooling System Pressure Cap cording to the temperatures occurring in the area where The cap must be fully tightened to prevent loss of engine the vehicle is operated. coolant (antifreeze), and to ensure that engine coolant NOTE: • Some vehicles require special tools to add coolant properly. Failure to fill these systems properly could The cap should be inspected and cleaned if there is any lead to severe internal engine damage. If any coolant is accumulation of foreign material on the sealing surfaces. needed to be added to the system please contact your local authorized dealer. (antifreeze) will return to the radiator from the coolant recovery bottle.