It stopped the leak in my radiator within 5 minutes of putting it in
Verified purchase: Yes | Condition: New
I used this to stop weeping leaks on my classic car system and it seems to have worked well. However I did shut the heater valve off as I had heard that some similar products blocking the heater matrix. Also once the sealant had done the job I drained the system and refilled with fresh coolant to prevent any possible blockage. So all in all a good product but I strongly recommend anyone using this product to follow the above procedure.
Verified purchase: Yes | Condition: New
i was losing water but couldn't see from where.also had a constant warning light on the dash board.i used this product with little confidence but it curred the problem instantly and the warning light has gone too all for £3inc.postage.
Verified purchase: Yes | Condition: New
I got 3 sachets for the price of one from a garage. Small leak in my motorhome radiator and ordered this item, followed very simple instructions and many months on it's still not leaking. Bonus is I have another 2 packets for any emergencies. I highly recommend this product.
Verified purchase: Yes | Condition: New
These little sachets have baled me out many times. Unchanged in over 30 years and still doing a sterling job. A king amongst its peers. Long live Ce Lit!
Verified purchase: Yes | Condition: New
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best-selling in Radiator Additives & Sealants
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Radiator Additives & Sealants