Model :05-09 Legacy GT Subaru 08-14 WRX. Aluminum Coolant Expansion Tank. Make : Subaru. Your cooling system was holding used coolant. After the new radiator has been installed your entire. CONTAMINATION AND ADDITIVES: Contamination and additives can clog passages and reduce overall heat transfer.Pure coolant liquid or mixing different types of liquids will also cause sludging in the system.
