Penrite Radiator Flush — Fast-Acting Cooling System Cleaner

Penrite Radiator Flush is a fast-acting (7-minute), alkaline cooling system cleaner designed to remove rust, scale and other deposits from automotive cooling systems that could block or foul circulation of coolant through the radiator or engine.

• One bottle treats up to 15 litres capacity
• Fast acting — cleans in 7 minutes
• Removes internal rust and corrosion
• Improves cooling system circulation
• Harmless to all metals, rubber, plastic and water pump seals
• Compatible with all types of coolants — neutralises leftover coolant to eliminate compatibility issues when changing coolant types
• Improves overall cooling system performance
• Non-acidic formulation
• Suitable for passenger cars, 4WDs, light and heavy duty commercial vehicles, motorcycles, agriculture, mining, construction and stationary engines
• Colour: Blue | Density at 15°C: 1.08 kg/L | pH: 9.0–10.0

Instructions for Use: Drain the cooling system, refill with clean water, add Radiator Flush, start the engine and turn on the heater. Run for 10–15 minutes (this includes 7 minutes cleaning time). Turn off the engine, allow to cool, drain the cooling system, then refill with the appropriate coolant. Refer to the product information sheet for full instructions.

Recommended for use prior to adding new coolant to ensure the cooling system is free from rust, scale and residue that could prevent new coolant from functioning as intended.