Cleaning

EXTERNAL
The aluminum core can be cleaned externally with a soft bristle brush, warm water, and a mild household liquid detergent. Rinse with clear water.

If the radiator is equipped with a transmission fluid cooler, install steel or brass plugs in the transmission fluid cooler fittings before cleaning and keep them installed during the entire service operation.

INTERNAL
CAUTION: Do not use caustic cleaning solutions or copper/brass radiator cleaning agents on aluminum radiators. Internal cleaning of the aluminum tubes can be accomplished with sonic cleaning equipment or by removing one end tank to gain access to the tubes. Then, clean the tubes with a mild household liquid detergent. Rinse the core with clean water when completed. Do not use it metal brush to clean an aluminum core. Use only horsehair, bristle or nylon brushes.