BLOWN HEAD GASKET? HYPER-SEAL A PERMANANT REPAIR SOLUTION!

I was very sceptical about using any of this type of product and thought it was going to have to be a new head gasket. My motor home was losing water to the combustion chamber but it was not entering the oil sump. Over a 100 mile journey it lost enough to cause overheating so i was topping up around 5 litres of water every 75 miles. I was recommended this product and to my absolute amazement it has cured the problem completely. I left it 3 months before writing this review in case it was just a short term fix but it is still not losing any water.

I purchased 3 of these products, they just did not work,seller will not refund or replace so beware this is not cheap, it does not work and seller will do nothing even though it is advertised as lifetime repair, seller knows that this did not work but refuses any helpDO NOT GET DONE LIKE I DID, DO NOT BUY IT

I bought this product after assuming the head gasket had gone on my Audi from loss of coolant and oil over time. My car was running and chucking heaps of smoke out so I thought I’d try my luck and purchase this.I’m hesitant to let my Audi go but being an old car, it’s bound to rest in a shallow grave soon. The car is on 173k mikes and after adding this sealant via the coolant, I was surprised to see almost no white smoke out from the exhaust.The instructions say to leave it running for 10 mins at 2k revs but that wasn’t enough, so I took it down the carriage way at 80mph for about 4 minutes after I had let the engine idle to working temperature.This seemed to seal the gasket for now! It’s been almost a week and there’s still white smoke coming out the back end, but much less than before adding the product.I may purchase another bottle to reinforce the seal, but I’m not sure if that’s the correct thing to do. I would recommend this to anyone who presumes their head gasket has gone. At just short of £18, this is definitely worth a shot! There’s a lot of comments saying it’s useless, but for me it worked.

Bought in the hope it would fix the problem of clouds of steam from the exhaust, head gasket possibly. But it worked. Been driving for a couple of months since adding to coolant and all sweet.

Not what I expected The result was very poor followed instructions to the letter and this morning went out in car like a steam train.

Didn't work for my radiator maybe it's OK for headgasket leak I wouldn't know because I bought this for my radiator and didn't fix even a small pin head hole

My car had a blown head gasket and was going through coolant like no one’s business, at first I thought it didn’t work and I’d been scammed but as it worked though the system and plugged any issues I guess its completely fine now. It has saved me from scrapping my car as its only a cheap one. I thought it was expensive buying it but it saved my hundreds cannot recommend enough!

Used in my 2011 nissan qashqai 1.5 DCI sealeant not worth buying used as per instructions would never know it was put in so useless in my opinion