Cooling System Service

Cooling System Service
Drain, flush and refill the cooling system every 166,000 km (100,000 miles) or every 60 months, whichever occurs first.

Engine Cooling System Inspection: Inspect and test the protection against overheating and freezing. If the coolant is dirty or has a rusty appearance, drain, flush and refill with new coolant. Keep it at the 50/50 mixture. This provides proper freeze protection, corrosion inhibitor level, and engine operation temperature. Inspect the hoses and have them replaced if they are cracked, swollen or deteriorated. Inspect all pipes, fluings and clamps; replace as needed. Carefully clean the outside of the radiator and the air conditioner condenser to avoid damage to their fins. Wash the filler cap and neck. To help ensure proper operation, a pressure test of the cooling system and pressure cap is recommended at least once a year.

Fluid Type
A mixture of 50/50 clean, drinkable water (preferably distilled) and DEX_COOL (R) coolant conforming to Saturn Part No. 21031164.

CAUTIONS:
The use of sealing pellets (or similar compounds) in the coolant system is NOT recommended.The use of sealing pellets may restrict the flow of coolant through the throttle body or other engine cooling system components.

If silicate coolant is added to the cooling system, premature engine, heater core or radiator corrosion may result. In addition, the coolant will require change SOONER, at 50 000 km (30,000 miles) or 24 months.

This is an emission control service, refer to Emissions Control Service.