I have a small leak in the radiator. Can I use astop leak product for a temporary fix/
Dec 16, 2010 at 5:06 PM
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MHPAUTOS
✓Experienced Mechanic
31,937 POSTS
The problem is that stop leaks do tend to block core tubes and can cause over heating, you can if you must, but get the radiator cleaned internally when repaired and replace thermostat and flush system and heater core as well.