XL-7 Standard 2WD V6-2.7L (2001)
Coolant: Description and Operation
COOLANT
The coolant recovery system is standard. The coolant in the radiator expands with heat, and the overflow is collected in the reservoir. When the system
cools down, the coolant is drawn back into the radiator.
The cooling system has been filled at the factory with a quality coolant that is a 50/50 mixture of water and ethylene glycol antifreeze.
This 50/50 mixture coolant solution provides freezing protection to -36°C (-33°F).
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Maintain cooling system freeze protection at -36°C (-33°F) to ensure protection against corrosion and loss of coolant from boiling.
This should be done even if freezing temperatures are not expected.
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Add ethylene glycol base coolant when coolant has to be added because of coolant loss or to provide added protection against freezing at
temperature lower than -36°C (-33°F).
Anti-Freeze Proportioning Chart
Coolant Capacity
NOTE:
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Alcohol or methanol base coolant or plain water alone should not be used in cooling system at any time as damage to cooling system could occur.
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Even in a market where no freezing temperature is anticipated, mixture of 70% water and 30% ethylene glycol antifreeze
(Antifreeze/Anticorrosion coolant) should be used for the purpose of corrosion protection and lubrication.
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"Hard water", if used, will foul up the cooling circuit by scale formation. Tap water available from city water supply is the best available water, in
a practical sense, for the cooling system. Distilled water is ideal but is a luxury in most cases.