Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Coolant: Testing and Inspection

RELATION BETWEEN COOLANT CONCENTRATION AND SPECIFIC GRAVITY





EXAMPLE
The safe operating temperature is -15°C (5°F) when the measured specific gravity is 1.058 at coolant temperature of 20°C (OFF)

CAUTION:
^ If the concentration of the coolant is below 30%, its anti-corrosion property will be adversely affected.
^ If the concentration is above 60%, the engine cooling property will decrease, affecting the engine adversely. For these reasons. be sure to maintain the concentration level within the specified range.
^ Do not mix types of anti - freeze"





RECOMMENDED COOLANT