Barrel Original Cooling System Flush, 250ml

Designed for cleaning engine cooling and heating systems prior to coolant replacement. Powered by Advanced Radiator Clean Technology, it dissolves scale, rust deposits, oil traces, and degraded coolant residue.

Key Benefits:

• Dissolves scale and rust deposits in the radiator and cylinder block.
• Cleans cooling passages and heater core lines.
• Improves heat transfer efficiency and stabilizes engine operating temperatures.
• Free from aggressive acids, safe for plastics, rubber hoses, and gaskets.
• Prevents premature breakdown of additives in fresh coolant.

Directions for use:

Pour the contents of the bottle (250 ml) into the expansion tank or radiator before replacing coolant. Warm up the engine to operating temperature and run for 10–30 minutes. Drain the old fluid, flush the system with distilled water, and fill with fresh coolant. One bottle treats up to 10 liters of cooling system capacity.