Recommended for all “water” cooled systems of petrol, LPG and diesel engines when minor leaks are noted.
Can also be used as preventive agent.
Warm up the engine with heater control in HOT position.
Shake bottle well and add contents to the cooling system via the expansion tank if part of the system circuit (2 hoses: out and return) or directly into the radiator if a single hose overflow tank is fitted.
Top up the system with coolant if required.
Run engine for approximately 5 minutes to circulate and stop leaks.
Contents treat a cooling system from 5 to 12 litres.
If the coolant is dirty, flush system with Wynn’s Radiator Flush and refill with new coolant before treatment with Radiator Stop Leak.