Caravan FWD V6-201 3.3L VIN R MFI (1997)
Coolant: Description and Operation
Coolant Performance
Performance is measurable. For heat transfer pure water- excels (Formula = 1 btu per minute for each degree of temperature rise for each pound of
water). This formula is altered when necessary additives to control boiling, freezing, and corrosion are added as follows:
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Pure Water (1 btu) boils at 100°C (212°F) and freezes at 0°C (32°F).
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100 percent Glycol (0.7 btu) can cause a hot engine and detonation and will lower the freeze point to -22°C (-8°F).
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50/50 Glycol and Water (0.82 btu) is the recommended combination that provides a freeze point of -37°C (-35°F). The radiator, water pump,
engine water jacket, radiator pressure cap, thermostat, temperature gauge, sending unit and heater are all designed for 50/50 glycol.
CAUTION: Do not use well water, or suspected water supply in cooling system. A 50/50 ethylene glycol and distilled water mix is recommended.
NOTE: Where required, a 56 percent glycol and 44 percent water mixture will provide a freeze point of -59°C (-50°F).
CAUTION: Richer mixtures cannot be measured with field equipment. This can lead to problems associated with 100 percent glycol.
