Specific Gravity Test

1. Measure the specific gravity of the coolant with a hydrometer.





2. Measure the coolant temperature, and calculate the concentration from the relation between the specific gravity and temperature. Use the table for reference.

Example: The safe operating temperature is -15° C (5° F) when the measured specific gravity is 1.058 at coolant temperature of 20° C (68° F).

CAUTION: If the concentration of the coolant is below 30%, the anticorrosion property will be adversely affected. In addition, if the concentration is above 60%, both the anti-freeze and engine cooling properties will decrease, adversely affecting the engine. For these reasons, be sure to maintain the concentration level within the specified range. Do not mix brands of coolant.

RECOMMENDED COOLANT:
Antifreeze: Ethylene glycol base for aluminum.
Mixture ratio of anti-freeze in coolant: 50%