Mercury Mariner Hybrid 2007 User Manual download pdf (Page 275)

concentration should be maintained at 50/50 coolant and distilled water,

which equates to a freeze point of -34°F (-36°C). Coolant concentration

testing is possible with a hydrometer or antifreeze tester (such as the

Rotunda Battery and Antifreeze Tester, 014–R1060). The level of coolant

should be maintained at the “FULL COLD” level or within the “COLD

FILL RANGE” in the coolant reservoir. If the level falls below, add

coolant per the instructions in the Adding engine coolant section.

Your vehicle was factory-filled with a 50/50 engine coolant and water

concentration. If the concentration of coolant falls below 40% or above

60%, the engine parts could become damaged or not work properly. A

50–50 mixture of coolant and water provides the following:

• Freeze protection down to -34°F (-36°C).

• Boiling protection up to 265°F (129°C).

• Protection against rust and other forms of corrosion.

• Enables calibrated gauges to work properly.

When the engine is cold, check the

level of the engine coolant in the

reservoir.

• The engine coolant should be at the “FULL COLD” level or within the

“COLD FILL RANGE” as listed on the engine coolant reservoir

(depending upon application).

• Refer to scheduled maintenance information for service interval

schedules.

2007 Monterey (mty)

Owners Guide (post-2002-fmt)

USA (fus)

Maintenance and Specifications

275

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Mercury Mariner Hybrid 2007 User Manual Page 275