Bar's Leaks Liquid Aluminum Radiator & Heater Core Stop Leak Antifreeze & Coolant, 16.9 oz

[This review was collected as part of a promotion.] Very pleased with Bar's Cooling System Radiator & Heater Core Stop Leak. Followed instructions to the “T” & it worked. My small leak disappeared. Happy customer and have recommended to friends & family. Great product

If you need something that works and will work fast, this is a pretty solid option. It stopped my heater core from leaking so it dripping antifreeze on my floorboard And it didn't cause any issues. I would not say this is a permanent fix and works best on smaller leaks. But overall it did what I needed it to do

[This review was collected as part of a promotion.] I bought this product two days ago because I was having issues and losing coolant rapidly. I used this on my pickup and started her up. The dripping stopped after a couple minutes. I'm still driving it today and haven't seen any coolant yet.

[This review was collected as part of a promotion.] These guys are life savers! I cant thank them enough for such a great product! I thought I was going to have to buy a new radiator that I couldn't afford. Being a female i was given prices that were out of my budget range. But then I remembered my father using Bar's Stop Leak to fix his head gasket when i was a teenager. So I bought some for my radiator, followed the directions and it worked!!! No more overheating and no leaks!!! I highly recommend Bars stop leak products.

I'm not sure how good it works on different radiators or other part's but so far it's doin great on mine!