Frequently Asked Questions

Radiator 10 Minute Flush (p/n 1211)

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Do I have to drain my radiator first?

Yes, per the label directions you are supposed to drain the system and install just water.

Do these contain acid?

No, and it requires no neutralizing.

Can this be used with copper, aluminum and plastic radiators?

Yes, since this contains no acid, you can use in old and newer vehicles with copper, aluminum and plastic radiators.

How much do I put in my radiator?

One bottle treats a standard passenger vehicle/light truck. Use every time you change your antifreeze. For larger systems use one bottle for every 12 quarts (3 gallons) of capacity.

Will Bar’s Leaks Radiator Flush hurt my cooling system?

No, Bar’s Leaks Radiator 10 Minute Flush is a non-acid formula and is safe to use on all cooling system materials. It is harmless to all parts of the cooling system, including aluminum.

The bottle froze before I was able to use it, what can I do?

If the bottle did not break from freezing, just let the product thaw out, shake well, and use as normal.