High Strength

Restoring effective heat transfer and maintaining the correct operating temperature is essential to the longevity and efficient running of an engine.
Wynn’s Radiator Flush will remove scale, rust and silicate fallout which restricts cooling.
It will also remove oil ingress caused by cylinder head gasket or oil cooler failure and is compatible with all coolant types,conventional EG as well as organic coolants. Aluminium and rubber hose safe.


• Dissolves and loosens scale and rust build-up from radiator and cooling jacket
• Restores heat transfer to effect correct operating temperature
• Removes oil ingress from head gasket or oil cooler damage


Shake bottle well
Add flush to cool radiator
Turn the interior car heater on full
Bring the car to operating temperature at fast idle
Continue for at least 10 minutes or drive for up to 20km
Drain and flush with clean water
Refill with deminerailused water and Wynn's Anti-freeze at the recommended ratio.


12 x 375ml


Technical Info Sheets



Cooling System

Cooling system problems, such as leaks and insufficient cooling due to fouling of the system, are the primary cause of vehicle breakdowns. To prevent these problems Wynn’s recommends radiator treatments.

Cooling System