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

Excellent result.

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/-

Stops Radiator leaks but if the coolant is replaced the chemical and drains away.

Radiator coolant tank was leaking before and now it's not. Did it's job i guess, now I need to see how long it works before i need to refill again.

Super super product

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...

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

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.