PUMP GP-ENGINE OIL 4W2448 - Caterpillar

Flush the cooling system and clean the cooling system before the recommended maintenance interval under the following conditions:
The coolant is dirty.
The coolant is heavily contaminated by oil.
The coolant is heavily contaminated by fuel.
The engine overheats frequently.
Foaming is observed.When the cooling system is cleaned, only clean water is needed when the ELC is drained and the ELC is replaced.
Use of commercially available cooling system cleaners may cause damage to cooling system components. Use only cooling system cleaners that are approved for Caterpillar engines.
Note: Inspect the water pump and the water temperature regulator after the cooling system has been drained. This is a good opportunity to replace any of the following items, if a replacement is needed: the water pump, the water temperature regulator and the hoses. Drain
Stop the engine and allow the engine to cool.
Take extreme care to slowly loosen the coolant system's filler cap. This relieves the pressure from the cooling system. Remove this filler cap.
Open the cooling system drain valve (if equipped). If the cooling system is not equipped with a drain valve, remove the cooling system drain plugs:
Drain plug from the bottom of the water cooled exhaust manifold
Drain plug for the water temperature regulator
Drain plug for the aftercooler
Drain plug for the oil cooler
Allow the coolant to drain.
Dispose of used engine coolant properly or recycle. Various methods have been proposed to reclaim used coolant for reuse in engine cooling systems. The full distillation procedure is the only method acceptable by Caterpillar to reclaim the used coolant.
For information regarding both the disposal of used coolant and the recycling of used coolant, consult your Caterpillar dealer or consult Caterpillar Service Technology Group:Outside of Illinois 1-800-542-TOOL
Inside of Illinois 1-800-541-TOOL
Canada 1-800-523-TOOL
Flush
Flush the cooling system with clean water in order to remove any debris.
Close the drain valve (if equipped). If the cooling system is not equipped with a drain valve, clean the drain plugs:
drain plug for oil cooler
drain plug for water temperature regulatorNote: Refer to the Operation and Maintenance Manual (Maintenance Section), "Torque Specifications" for more information on the proper torques.Reinstall both drain plugs.
Fill the cooling system with clean water, and reinstall the coolant filler cap.
Operate the engine until the temperature reaches 49 to 66°C (120 to 150°F).
Stop the engine and allow the engine to cool. Open the drain valve (if equipped), or remove the cooling system drain plugs:
Drain plug on the bottom of the water cooled exhaust manifold
Drain plug for the water temperature regulator
Drain plug for the aftercooler
Drain plug for the oil cooler
Allow the water to drain.
Take extra care to loosen the coolant filler cap slowly. This helps to relieve the cooling system's pressure. Remove the coolant filler cap.
Flush the cooling system with clean water.
Repeat step 2 through step 5. Fill
Engines That Are Equipped with a Coolant Recovery Tank
Fill the expansion tank with ELC. Fill the expansion tank to the top . Refer to the Operation and Maintenance Manual (Maintenance Section), "Cooling System Specifications" for more information on cooling system specifications.
Reinstall the filler cap for the recovery tank.
Place the marine transmission