Liqui Moly Radiator Stop-Leak Oil (150 ml), Mix

Product defenitely works as promised. Go for it if you want to save money for radiator replacement, in my case it was a minor leak and since then my radiator is fixed. Its about 1 & 1/2 year no leak so far, havent used full bottle but the results are quick and long lasting. It works magically, authorised service center recommended me radiator replacement costing more than 5000/-

Fast Shipment... Used in my MB Radiator for a leak near the Radiator -- (small leak where the hose meets the radiator on the rubber could see traces of coolant -- had topped up coolant probably 300 ml in 3 months).It did its job well... Quality product and for me, cost saving in a big way - spent under 1K Vs 23K types on a new Behr Radiator...Now completed 1yr 3 months - 7.5 K KM's on the ODO.. It seems to be giving off now, as I have seen some traces of coolant at the hose joint; however coolant level has not fallen warranting for a top up. Intend to re use it. I think it was not a bad deal especially if one were to look at cost saving and the pressure the radiator system holds.Direction for use got from a You Tube Video...I had Radiator and cooling system flushed and replaced the contents the new coolant and Distilled Water and used the Product ---- To use the product run the car with Radiator Cap and heater switched on (A/C to be set in heat mode) for 3-4 Min then slowly release the cap to release some pressure off when the engine is running and add the product and run the engine with the cap closed for 10-12Min...

Perfect leak stop working fine from last 2 months, cost effective

the car repair people don't like it when I tell them this product has sealed my head gasket and radiator both. It still has no leak after 30k km, yes thirty thousand. I used two bottles though with a week's gap as one didn't do it for me but my gut feeling said to try one more bottle rather than paying 6-10k for just labor.

Absolute waste! Does nothing. Doesn't plug even a minor hole in the radiator. Problem remains.

Very good product, my car radiator leaking stop thank amazon

This product save my 35000 . If there is some leakage in your radiator. Please try it first. It will show you result after 3-4 days . My coolant leakage had totally stopped after 3-4 days . Then I refill again my coolant tank . And now it’s about a month. There is no leakage issue now .

I have a small leak in the head gasket which cause the coolant to drop by about 1 liter for 100 kms running. I used this product at it fixed the leak. But after running for about 20kms the leak was back, seems it could not stand the pressure as head gasket leaks sealant have to be able to withstand high pressure.