Engine coolant
To check the coolant level
The coolant reserve system provides a quick visual method for determining the coolant level. When the engine is cold, the level of the coolant in the reserve tank should be between the “F” (FULL) and “L” (LOW) marks. The radiator normally remains completely full so there is no need to remove the radi- ator cap except for checking the coolant freeze point or replac- ing the antifreeze coolant. To add coolant
Use Mitsubishi Genuine Coolant or an equivalent. Mitsubishi Genuine Coolant provides excellent protection against corrosion and rust formation on all metals, including aluminum, and prevents blockages in the radiator, heater, cyl- inder head, engine block, etc. If you need to add coolant often, or if the level in the reserve tank does not drop when the engine cools, the cooling system should be pressure-tested for leaks. Take your vehicle to an authorized Mitsubishi Motors dealer or a repair facility of your choice for testing.
CAUTION! ● Do not use alcohol or methanol antifreeze or any
engine coolants that contain them. Using the wrong antifreeze can corrode aluminum parts.
● When you need to add coolant to the reserve tank, use at least a 50 % concentration of ethylene-glycol antifreeze in water. Do not overfill. Use a higher con- centration (not over 60 %) when the outside temper- ature is -31 °F (-35 °C) or lower. When the engine is working very hard (for example, during mountain driving and/or when the outside temperature is high), use a 50 % concentration. You can check the concentration level with a gauge from an automotive supply store, or your authorized Mitsubishi Motors dealer or service station can check it for you. Use only high quality ethylene-glycol antifreeze coolant that is made to prevent corrosion of all cooling sys- tem metals.
● Do not top off the tank with plain water only. Water by itself boils at a lower temperature and does not stop rust or freezing. If the water freezes, it will damage your cooling system. Do not use tapwater. It can cause corrosion and rust.
Vehicle care and maintenance
Radiator cap
The radiator cap must be tight sealed to prevent losing coolant which may result in engine damage. Only use a Genuine Mitsubishi Parts radiator cap, or an approved equivalent.
Points to remember
● Do not overfill the reserve tank. ● Your vehicle uses a special radiator cap that stays sealed
and lets the coolant flow from the reserve tank back to the radiator when the engine cools down. If you need to change the cap, use the exact same kind.
● Check the coolant freeze point in the radiator with the proper gauge, and only when it is safe. If you add anti- freeze, the contents of the reserve tank must be protected against freezing.
● Keep the front of the radiator and condenser clean. ● If the temperature of the engine coolant does not rise after
the engine is warmed-up, take your vehicle to an autho- rized Mitsubishi Motors dealer or a repair facility of your choice to have the thermostat checked, and replaced if necessary.
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