Prestone Cooling System Flush 1 L + Prestone Coolant/Antifreeze Concentrate 4 L

Prestone Cooling System Flush 1 L. Pour Prestone Cooling System Flush into expansion tank, top up with water to correct level and run engine at idle for 45-60 mins. Drain system, flush with water and add Prestone coolant/antifreeze to correct level.

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