Filling Cooling System

causym CAUTION: Explosive release of fluids from pressurized cooling system can cause serious burns.

If radiator cap must be removed, do not remove when engine is hot. Shut engine off and wait until cap is cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

Never add coolant when engine is overheated. Wait for it to cool.

Under certain conditions coolant conditioner can cause serious injury or death to you or others. Never inhale or ingest conditioner and avoid contact with skin or eyes. When adding coolant conditioner observe all precautions listed on container.

IMPORTANT: Follow this procedure if coolant system has been drained or flushed.

DO NOT use methoxyl propanol antifreeze in the cooling system. It may damage cylinder sleeves and seals.

Stop-leak additives can plug radiator, causing overheating and engine damage. Do not use coolants that contain a stop-leak additive.

NOTE: See Diesel Engine Coolant and all associated coolant information in Fuels, Lubricants and Coolants section.

1. Add specified coolant to radiator until neck is completely full prior to starting engine if radiator has been drained or if cooling system has been back-flushed. Open heater valves and operate heater.

2. Start engine and operate at idle throttle until thermostat opens.

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3. Refill radiator to top of filler neck using specified coolant.

4. Install and tighten radiator pressure cap.

5. Shut off engine.

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6. Fill surge tank to the maximum cold level (A).

NOTE: The coolant level in the surge tank will go down as air is removed from the cooling system. When coolant is hot, the level in the surge tank will be higher than when coolant is cold. Coolant should be added to the surge tank as required, to maintain level between maximum cold level (A) and minimum cold level (B). When coolant is hot the level will be 1.8-3.7 L (2-4 qts) higher than when cold.


A-Maximum Cold Level
B-Minimum Cold Level

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