Hoses and Clamps Cleaning

WARNING:
^ Under some conditions, the ethylene glycol in engine coolant is combustible. To help avoid being burned, do not spill antifreeze or coolant on the exhaust system or hot engine parts.
^ Do not remove the radiator cap when the radiator is warm. Removing the cap immediately lowers the boiling point of the coolant, and could cause a violent overflow, resulting in a large coolant loss and personal injury.

Every 30 months or 50 000 kilometers (30,000 miles) the cooling system should be serviced as follows:
1. Check coolant for proper level and freeze protection.
2. Check hose clamps for tightness and inspect all hoses. Replace cracked, swollen or deteriorated hoses.
3. Clean the front of the radiator and A/C condenser (if so equipped).
4. Every 30 months or 50 000 kilometers (30,000 miles), whichever comes first, the cooling system should be drained and refilled.

CAUTION: If recommended quality antifreeze (GM specification #1825-M or equivalent) is used, supplemental inhibitors or additives claiming to provide increased cooling capability are not necessary. They may in fact be detrimental to the efficient operation of the system, and represent an unnecessary operating expense.