Operation CHARM: Car repair manuals for everyone.

Coolant: Testing and Inspection




ENGINE COOLANT CONCENTRATION TEST

CAUTION:

- Engine coolant of less than 30% concentration has a less rust-proof effect. In a concentration of over 60%, the antifreeze effect and engine cooling performance of the engine coolant are deteriorated, causing a detrimental effect on the engine. Therefore, observe the service concentration range without fail.

- Use the Dia Queen Super Long Life Coolant Premium without adding water because the concentration is preadjusted to 50%.

Using a hydrometer, check if the engine coolant concentration is within the standard value range.

Standard value: 30 to 60% (service concentration range)