Home » FUSO 4M4 » FUSO 4M4 – HYBRID ELECTRIC VEHICLE SYSTEM – ON-VEHICLE INSPECTION AND ADJUSTMENT – Inspection of Coolant Level

FUSO 4M4 – HYBRID ELECTRIC VEHICLE SYSTEM – ON-VEHICLE INSPECTION AND ADJUSTMENT – Inspection of Coolant Level

• Inspection should be performed before starting the engine when the coolant is cold.
• Check that the coolant level in the reservoir tank is between “FULL” and “LOW” lines.
• If the coolant level is below “LOW” line, check the cooling system for leakage. If no leakage is found, add coolant up to “FULL” line.
Be sure to use the mixture of FUSO DIESEL LONG LIFE COOLANT and water in appropriate concentration to prevent freezing of the coolant and corrosion of the cooling system. (For details, see Owner’s Handbook.)
• If the coolant level is extremely low or it lowers instantly after refilling, check the cooling system for leakage.

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