Cooling System

Check the cooling system for damaged hoses, loose or seeping connections, or other possible causes of coolant leaks.

Antifreeze
The engine cooling system is provided with a mixture of 50% ethylene glycol anti-freeze and 50% water at the time of manufacture. (For the vehicles of tropical area, the engine cooling system is provided with a mixture of 40% ethylene glycol anti-freeze and 60% water at the time of manufacture.) Since the cylinder head and water pump body are made of aluminum alloy casting, be sure to use a 30 to 60% ethylene glycol antifreeze coolant to provide corrosion protection and freezing prevention.

CAUTION: If the concentration at the antifreeze is below 30%, the anticorrosion property will be adversely affected. In addition, if the concentration is above 60%, both the anti freezing and engine cooling properties will decrease, adversely affecting the engine. For these reasons, be sure to maintain the concentration level within the specified range.

Measurement of Antifreeze Concentration
Run the engine until coolant is fully mixed. Drain some coolant (antifreeze), and measure temperature and specific gravity of the coolant. Determine concentration and safe working temperature. If the coolant is short of antifreeze, add antifreeze up to a concentration of 50%.. (Tropical Areas : 40%)

Replacement of the Coolant
1. Set the temperature control lever to the hot position.
2. Remove the radiator cap.

CAUTION: Remove cap slowly as the system is pressurized and the coolant may be hot
Do not open the cap when engine is hot.

3. Loosen the drain plug to drain the coolant.
4. Drain the coolant from the reserve tank.
5. After draining the coolant, tighten the drain plug securely.
6. Supply the coolant into the radiator until it is filled up to its filler neck.
7. Supply the coolant into the reserve tank
8. After warming the engine until the thermostat opens, remove the radiator cap and check the coolant level.
9. Supply the coolant into the radiator until it is filled up to its filler neck, and install the radiator cap securely.
10. Fill the reserve tank with coolant up to the "FULL" line.