- 1100 Head Gasket Repair Sealant, 20 oz

It has made a noticeable improvement in my coolant temperature

works great

Excellent product

##UPDATE AFTER A FEW DAYS Although this worked for a few days, the head gasket started leaking again so I am going to bite the bullet and pull the head. It was worth the $8.00 to give it a try. In my case, it did not work. ##### When a head-gasket starts leaking, it can do different things depending on where the leak is. You might see coolant coming from your tail-pipe, or oil in your coolant reservoir, or even coolant leaking from underneath your engine. I would be hesitant to use this stuff if there were oil seeping into my coolant, or if water was really gushing out of my tail-pipe (indicating a massively warped head or a badly damaged head-gasket). In my case, my truck over-heated and after fixing the initial problem (water pump went out), I found I had a tiny amount of water coming from the tail-pipe, and one cylinder was misfiring from coolant seeping into it. I know that the head needs to be pulled and taken to a shop; however, at the moment I am short on money and time to do that. I decided that this would be a good use-case for trying a head-gasket sealant, as I am not looking for a permanent fix but rather something to keep the truck running until I can set aside the money and time I need to properly tackle the problem. There are a lot of opinions being thrown around about using head-gasket sealant, so I tried to sort through the feedback from people who have actually used it, and stayed away from arm-chair mechanics who were just repeating things they have heard from their daddies. The other thing I did was to read the instructions carefully from the actual package (it is behind the label on the bottle, or you can download it from the website, although the website instructions had slightly different run-times from the package). I re-read the instructions several times to understand what was going on. What I gathered is that it is important to flush ALL of the antifreeze COMPLETELY out of the cooling system BEFORE you add this to your car. From the instructions, it sounds like antifreeze can make this stuff harden, so you do not want the two to meet, so to speak. With this in mind, I flushed the coolant with water three times to be sure that I had it all out, and then let the car drip-drain overnight. What I mean is that I emptied all coolant, filled with water, ran the truck for 10 minutes, then drained, repeat.. I decided to remove my heater-core from the coolant-system-flow. This was easy in my truck, since the tubes that run to and from the heater are right at the top-back of the engine, so it was simple to just remove and re-connect the in and out tubes together and completely bypass the heater. I could not think of any good reason that the heater would need sealant running through it, and I did not want to risk clogging my heater-core. I then added the sealant exactly as it said in the instructions. I did not deviate from the instructions other than to err on the side of letting the truck idle slightly longer than it suggested, and of course I had removed the heater so I did not run the heater at all. After running the stuff through the truck, per instructions, I flushed the system again. I took my time and really flushed the radiator, reservoir, and engine block as thoroughly as I could with a garden-hose. I removed my thermostat and ran the engine with water. I noticed my thermostat had some of the goo on it, so I cleaned that off the best I could. I ran the truck again with water in the system, drained and repeated that a few times. I then let the truck drip-drain over night again. After all of that, I put everything back together (thermostat, heater, etc) and added coolant to the system. I took the truck for a drive around the neighborhood and it seemed to be running fine. There is no longer coolant trickling from the tail-pipe. The truck does not seem to be misfiring like it was. Over the next month I will observe and report back on any issues. In Summary: Flush all antifreeze before adding the sealant After following the instructions, flush your coolant system really well before adding antifreeze back to the system Reading through some of the complaints, it sounds like many people did not follow the instructions exactly (..just dumped the stuff into a system full of anti-freeze..), or used this trying to correct major head-gasket issues.

👍thanks great k roW

Didn’t work, bought Blue Devil and it worked the very first time.

It’s decent for a “get me by” fix but honestly? Get blue devil if you want it to last longer than a couple months

1999 Olds Intrigue with 3.5L engine, 162,000 mile. Head gasket leaks are very common with this engine. Had a very small head gasket leak, losing about 8 oz of coolant in 3000 miles. Could smell the leak but the coolant would boil away from the leak area before it had a chance to drip out. I used the product as directed about two months ago. The leak stopped immediately and the fix appears to be lasting fine. Keep in mind that using this product is a two day adventure. You must triple or quadruple flush the cooling system first. There are several lengthy run and cool cycles required. Then flush thoroughly again before adding coolant. Take your time, let the engine cool overnight in the final phase. In the end, your patience and work will pay off with a successful fix.

Eu segui o Manual e alguns vídeos só YouTube gringo. Funcionou perfeitamente. Selou o cabeçote da minha Sorento 2007 e já dura uns 8 meses

Un excellent produit je le recommande fortement pour sauver plusieurs dollars (Vraiment)

ちょっと水路が複雑なTTサンバーに使ってみましたが、うまく行きませんでした。 残念！

استخدمته من ٦ اشهر وخليته بالمياة السيارة العادية قطع تسريب الجوان مررة وماشي الحال الحمد لله

Bought almost 8 months back. Worked wonders on my car engine. Tolally stopped the oil and water mixing problem in my car and sealed the head gasket.