2018-MKX-Owner's Manual

Maintenance

Severe Climates If you drive in extremely cold climates: • It may be necessary to increase the coolant concentration above 50%. • A coolant concentration of 60% provides improved freeze point protection. Coolant concentrations above 60% decrease the overheat protection characteristics of the coolant and may cause engine damage. If you drive in extremely hot climates: • You can decrease the coolant concentration to 40%. • Coolant concentrations below 40% decrease the freeze and corrosion protection characteristics of the coolant and may cause engine damage. Vehicles driven year-round in non-extreme climates should use prediluted coolant for optimum cooling system and engine protection.

Note: During normal vehicle operation, the coolant may change color from orange to pink or light red. As long as the coolant is clear and uncontaminated, this color change does not indicate the coolant has degraded nor does it require the coolant to be drained, the system to be flushed, or the coolant to be replaced. In case of emergency, you can add a large amount of water without engine coolant in order to reach a vehicle service location. In this instance, qualified personnel: 1. Must drain the cooling system. 2. Chemically clean the coolant system. 3. Refill with engine coolant as soon as possible. Water alone, without engine coolant, can cause engine damage from corrosion, overheating or freezing. Do not use the following as a coolant substitute: • Alcohol. • Methanol.

• Brine. • Any coolant mixed with alcohol or methanol antifreeze. Alcohol and other liquids can cause engine damage from overheating or freezing. Do not add extra inhibitors or additives to the coolant. These can be harmful and compromise the corrosion protection of the coolant. Recycled Coolant We do not recommend the use of recycled coolant as an approved recycling process is not yet available. Dispose of used engine coolant in an appropriate manner. Follow your community's regulations and standards for recycling and disposing of automotive fluids.

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MKX (CD9) Canada/United States of America, enUSA, Edition date: 201707, First Printing