Coolant: Testing and Inspection

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, using the following table for reference.





Relation between concentration and specific gravity of coolant

Caution: If the concentration of the coolant is below 30%, the anti-corrosion property will be adversely affected In addition, if the concentration is above 60%, both the anti-freeze and engine cooling properties will decrease, affect the engine adversely. For these reasons, be sure to maintain the concentration level within the specified range. Do not use together with another brand





Recommended coolant