How to Fix Head Gasket Leak with K-Seal

Just showing you how I fixed my small head gasket leak with a product called K-Seal. This product seems to have a high amount of positive reviews on Amazon so I decided to give it a shot to fix my head gasket leak, PERMANENTLY. Link: amzn.to/2NOrre7
Here's all the products related to this video!
Canada Links:
K-Seal 16oz: amzn.to/2NOrre7
K-Seal 8oz: amzn.to/2Ss7Pz5
Royal Purple Coolant Additive to help cool temps and prevent overheating: amzn.to/2C4bUFr
Prestone Anti-freeze Tester: amzn.to/2wzAkS6
USA Links:
K-Seal: amzn.to/2P6YQB8
K-Seal Permeant Block and Head-Gasket Sealer: amzn.to/2PbqQ6R
K-Seal Heavy Duty: amzn.to/2IF3rbk
Redline Water Wetter to keep engine temps cool: amzn.to/2Rs7Rqc
Royal Purple Coolant Additive to help keep engine temps cool: amzn.to/2PdiawO
Prestone Coolant Tester: amzn.to/2Rq0EXv
Valvoline Maxlife Premium Universal Anti-freeze: amzn.to/2ICuaoY
Update* Leak did stop but it wasn't from a head gasket leak it came from somewhere else I have no clue wear. Planning on doing a cooling system flush now so that this stuff doesn't wind up clogging small passages in my cooling system.
Link: www.amazon.com/K-Seal-ST5501-P...
NOTE: My coolant leak was very small at the time only had to replace half a litre of Coolant every 5000 Kilometers or so. This product may not work if you have a large coolant leak.
Disclaimer: I (Darksyne) am not sponsored by K-Seal I bought this with my own money and take no responsibility for any damage this product may cause while in your car.
Update: I made this video 2 weeks ago and coolant level hasn't dropped, so far this product is working, I plan to do a flush once the weather gets warmer to prevent any possible clogs in the system.
#KSeal #HeadGasketFix #StopLeak

[@Darksyne]

Here's all the products related to this video! Canada Links: K-Seal HD: amzn.to/3yqluwu K-Seal 16oz: amzn.to/3wW7g5j K-Seal 8oz: amzn.to/2Ss7Pz5 Royal Purple Coolant Additive to help cool temps and prevent overheating: amzn.to/2C4bUFr Anti-Freeze Tester: amzn.to/3MorLB1 USA Links: K-Seal: amzn.to/3CedwX5 K-Seal Permeant Block and Head-Gasket Sealer: amzn.to/2PbqQ6R K-Seal Heavy Duty: amzn.to/30n1IEF Redline Water Wetter to keep engine temps cool: amzn.to/2Rs7Rqc Royal Purple Coolant Additive to help keep engine temps cool: amzn.to/2PdiawO Prestone Coolant Tester: amzn.to/2Rq0EXv Valvoline Maxlife Premium Universal Anti-freeze: amzn.to/2ICuaoY Cummins Oil Pressure Sensor: amzn.to/3Z1TDh0 Smoke Grey: amzn.to/3Ooo91g Garmin: amzn.to/3XYXFrD Kep Nuts: amzn.to/3xiXVJ0

[@MYKEYSAUTOMOTIVE]

Darksyne car still running??

[@Darksyne]

@@MYKEYSAUTOMOTIVE of course! Put on another 25,000 km on the car since this video and aside from a few repairs here and there she's still running smooth and strong with no issues or leaks with the cooling system!

[@kchasehenson57]

I read in one comment that their heater core stopped leaking and in another that their water pump stopped leaking. Do you know if all that is true and do you think it would stop a leak in the air conditioner? 💜

[@Vertikala-pc5ig]

So would it be maybe better to add it to half a gallon of coolant and mix it through and add it in the system?

[@jaysagrayum7448]

Hi, this is a very old video but I'm having issue with my cooling system.. I see bubles after I drive long distance. how is the performance of this product? I live in the Philippines by the way. hope you can help me Thanks in advance

[@oneguysopinionyup7252]

THIS STUFF WORKS !!!🎉👍👌 like a charm 😁 I have 351,266 miles on my truck[1997 dodge ram 1500] all original. The Water pump just broke 40 minutes ago & fluids were everywhere. I put this K-SEAL stuff in and not only did it fix the water pump leak it also fixed my head gasket. I've been blowing white smoke for almost a year 😲 Now, no more like smoke😇 I'm driving from Reno Nevada to Tahoe with no leaks and my running temperature has always been right at or around 200 now it's running at or around 190 to 200. THIS STUFF WORKS🎉👍😎😲😁

[@TIYX]

You know when a water pump leaks (usually) that means it is shot. The bear on the water pump acts as a seal. When the bearing goes the water pump then leaks to let you know the bearing is shot. But it could just be the gasket leaking.

[@arielaceves5806]

Funny I come across this comment. I too drive from Reno to S. Tahoe at least twice a week. The radiator cap broke on my car and leaked all of the coolant and of course over heated. I noticed I was loosing coolant...ugh! I just poured this into my cooling system, hope it works!

[@nj_beatz]

Just bought this for my 8th gen civic fd. My radiator had small bubbles and pressure every time I took it for a spin (possible pinhole leak in the head gasket). Tried it today, drained some coolant first and put some directly to the top radiator hose then mixed some to the coolant I returned. I only used maybe 3/4 of the bottle since my cooling system only has 5.5 liters of coolant. And wow! the results are very positive! No more pressure and bubbles on the radiator. And the car felt smoother and responsive no more power loss after driving it for an hour. This is a real game changer! Super impressed with this K-seal. Will observe it more for a couple of days, but the initial results are promising! Excellent product!

[@joekane3601]

This k seal is the real deal I had a leak in My heater core under the dashboard on the driver side on my 09 pontiac torrent pour this in 2 weeks ago an no more leaks thanks alot k seal

[@anatoliyfedorov6245]

Been hearing a lot of good things about this kseal stuff. Might give it a try if my car starts leaking, thanks!

[@charleshellinga6783]

I heard about this stuff. Probably the highest rated stop leak on the market glad to hear you got good results too. Probably the best video guide out there too!

[@namussuman4452]

My car was leaking as if someone was pissing! I had previously fix 2 freeze plug in the same day. After I fix those, I had another leak in the back side of the engine, in which was really hard to get it to and did not want to bother with having to replace that freeze plug. I watch this video after thinking about engine coolant leak seal. When I saw this video, I had no doubt that leak seal would do the trick. I I used the same item, name K Seal after finding it at a local O'Reilly's parts store. The price was $36.... And was worth every penny of it! It work within 30 seconds!!! I have no more leaks!!!! That stuff works like a charm!!!! Thanks for the video! You would get a five star rating from me!!!

[@betotheboss8469]

So this thing stop the leak on your freeze plug

[@rons9197]

93 Honda Accord 265,000 miles. Stopped leak I had in the head gasket. Added to coolant for 500 miles then drained then put distilled water for 400 miles. Drained distilled water and replaced with 50/50 antifreeze. No leaks at all after a couple hundred more miles.No clogs in heater core it is working as is the radiator. Amazing no leaks now but I will be replacing the head n head gasket.

[@samhicks97]

*This. Product. Works.* Real talk, I had a 'leak" it was more of a torrential downpour on the heatercore, and I drive a 64' Dodge custom 880. And yes there are no aftermarket heatercores for this car, so I was at a loss on how I was going to get the heater working again, and I was short on funds to get a re-core at a radiator shop. Lo and behold I tried K-seal and it stopped the steady stream of coolant that was pouring out. Quite unexpected for a sealer to work even on a gaping hole. So if you have a slow drip of coolant, I'm confident that K-seal can plug up that pin hole leak. Hell I'd even dare say i had the worst leak possible to even let a sealer take care of the hole. I gave the K-seal a run for it's money, and it delivered. Better than bars leak, bars leak sealer didn't even do anything to seal up the hole. Recomend using this product, I'd still advise on getting a permanent fix, broken part/ heater core.

[@ricksalva1124]

Nice bro! So far this is the most detailed stop-leak video I've seen hope this works. Subbed Btw.

[@Darksyne]

Rick Salva thank you for subbing!

[@hemi5.7awdpursuit5]

So did it work

[@glenncrowther5433]

Nice! Finally a stop leak that works!

[@geraldos9094]

Man, I just poured some K Seal into my water reservoir, after a mechanic just told me my gasket around my water pump is leaking. Haven’t seen a drip under my car in 2 days. I hope it holds because it’s a $2K job to put a water pump in this Land Rover Discovery.

[@lincolnreineke]

Definitely the easiest head gasket sealer to use on the market! Just pour it and go, no need to fumble around with the thermostat, which can be a pain to remove on some cars.

[@mattmacmiller3690]

The only stop leak I've seen that works just by pouring it in the coolant reservoir. No need to mess around with the thermostat or anything!

[@TheLizardKing1967]

K-Seal really works folks. I own a 94 Toyota Celica with over 335,000 miles on it and it smoked like a freight train and after i used a 1/2 bottle of K-Seal and drove it for 15 minutes..... NO SMOKE AT ALL! I SWEAR BY THIS STUFF. IT REALLY WORKS!

[@mikemilano7701]

Make sure you read the bottle, these small bottles are supposed to treat up to 22 quarts of coolant so if your car only takes 8 quarts of coolant you should only use half a bottle. Especially if you don’t have an expansion tank for say a classic car it will completely clog your radiator and cause other problems. Make sure you fully read instructions prior to use!! Good luck with it, it worked for me in the past!

[@Darksyne]

yeah I think I mentioned if your car has a small cooling capacity like the older civic's, you don't need to use the whole bottle. But if you have a big truck that takes a lot of coolant, then you should use K-Seal HD which is a bigger bottle for those heavy duty cooling systems.

[@samtx]

thanks mike milano ,i used half kseal and it worked ,looking at others when to drain all coolant/kseal so it will have new coolant

[@samtx]

how long have you seen kseal good for 5k or 10k miles and still good ? thx

[@johnhealy9231]

It worked for me in the past Vauxhall’s 1.4 twin port petrol engine, mao on oil filler cap topping up water, used k seal changed oil+filter no more mao no more topping up water 2years later still good so worked for me 👍

[@skatiaris21]

same car same problem...i poured half of it since it stated inside the sticker to use half in a 5 liter coolant capacity

[@iandominicordinante1789]

Do yo need to flush your coolisng system after kseal worked or leave kseal in your cooling system as long as it is working?

[@RevMac777]

I put it in 6 months ago and still losing coolant. Glad it worked for some in here.

[@Darksyne]

RevMac777 leak might be too big. Get some dye and a uv light to see where and how big the leak is.

[@RevMac777]

Darksyne 2005 Cadillac Deville, North Star Engine. No external leaks, but it uses a small amount of coolant weekly. It has a slight miss when driving until the engine warms up. Engine doesn't overheat and runs great! Any special instructions for the North Star engine. Might be a head gasket leak but no noticeable moisture coming out of the tail pipes. Thanks!

[@Darksyne]

RevMac777 those North Star engines weren't that well built. They were prone to block cracks and the cylinder heads and gaskets warping, which probably explains why it acts up when cold.

[@carlosjimz]

@@RevMac777 same here, also white smoke only at startup after sitting at night, tried barleaks 1111 and worked for a week, misfire came back and white smoke , looking for alternative before junk yard the car , done rebuilts before but this looks like a waste of time

[@biggameslayer3782]

I know everyone has been talking about flushing well walmart sells a flush kit for your waterhose for $4 works well

[@braddakimo1954]

Works excellent!!

[@Smokinlikeamufucka]

K seal clogged my radiator by using it the way you did. That's why it says to add to the reservoir rather than the radiator itself. It will sit on top of the flues and not let water pass and cause overheating. It really needs to be diluted first before entering the radiator

[@jstblessed8081]

Thank you was concerned wanted to know 4sure wich one

[@cyraxnzed578]

Yeah works really well my 97 holden rodeo 2.8td was over heating and using water i tried this 2 days ago i was very sceptical having to spend 100 dollara on a bottle of thos, but too my surprise its held up really well

[@pauloszenbaba5461]

it works

[@Darksyne]

Put on 9000 more Kilometers since the making of this video and still no leaks or component failures and the heater still works as normal even on these cold Canadian winters, though I think it could still use a flush.

[@sksoreal6001]

was your car smoking any?

[@Darksyne]

Nothing serious just normal water vapors from the condensation that builds up in the exhaust, so the car is in good health still. This stuff works but remember to flush out the extras once the leak is fixed so it doesn't clog the system.

[@sksoreal6001]

+Darksyne yo i just tried it for the most part it seems to be running normal dis video helped alot fam

[@kjlong420]

Darksyne says you can leave it in. I just used it today and I'm amazed how well it worked.

[@bryanpozos149]

Did you leave the radiator cap off during the 15 minutes? And did you have combustion gases going into the radiator? Because I have a 2013 Nissan Sentra SV and the only problem I have is that I have combustion gases going into my radiator, will K-seal stop that? Thanks

[@joeo1725]

I used it on my diesel citroen xantia cos coolant steam was escaping from the cylinder head. Sealed it right up but im very vigilant and caught it fast

[@thenoisyone9131]

This stuff really works. I was about to scrape my 2007 Torrent because shop said it had 2 blown head gaskets n it would cost over $ 3000to fix. Went to Walmart got this stuff n no more over heating.

[@samtx]

Still good how many miles If you had to drain coolant right after seal

[@thenoisyone9131]

@@samtx There’s 175,000 miles on it to date. It’s been running great no over heating issues any more since I put the K Seal in. It also stopped the white smoke from tail pipe. Now if left idling over 10 min it begins to signal over heating but as far as driving where ever when ever and on a daily basis to and from work no overheating issues.

[@samtx]

@@thenoisyone9131 lucky you ,its still running

[@samtx]

@@thenoisyone9131 thank you ,curious how many miles you put on it from kseal ,guessing from others 1000 to 3000miles maybe ,im having similar and will document how many miles it will last

[@skwaihee]

Tried this product. Only worked so well for 3 weeks. Not permanent

[@HMA1434]

Which car did you use it on? And was it the head gasket that was leaking in your car?

[@skwaihee]

@@HMA1434 Jaguar XJL 351 model. I finally sold it coz the engine surface warped. If you're just a regular guy get a Japanese Altis. All these high powered cars don't last long.

[@racingdreamz8021]

I used a bottle of Steel Seal to fix my head gasket, drained the coolant, removed the thermostat, flushed the cooling system really good, Then use a radiator cleaner to clean the cooling system , Make sure to flush out all the cleaner 100%, When engine is 100% cold add steel seal with distilled water, turn heater on high & let idle for 30 mins with the radiator cap off........Let it cool for 1 hour the let idle again for 30 mins with the radiator cap on...........next morning let it idle for another 30 mins then removed all water from the system to let the steel seal cure for 24 hours, Replace the thermostat, fill with coolant and your good to go. Mine has been running perfect for 70k miles now as i use the car for uber & lyft, Only cost me about $120 total.

[@hssumm]

Works as intended...... before you pour it in the radiator, run engine for 10 minutes. Do not over heat. Add coolant to just about full then top off with K-seal. Run heater full blast for about 15 minutes. Shut engine off and allow to cool....at least 24 hrs. It worked for me.

[@ernestineforbes2924]

I'm going to try it how you just say because this is my first time experiencing a leak in my coolant and gasket

[@tommiemarsh9006]

24 hrs is this really how long I need to wait?

[@rosessonata8326]

@@tommiemarsh9006I was wondering the same…. Because other people say it’s ready to drive after 20/30mins

[@codijacobs2896]

OK so I have a 2000 honda accord lx 3.0 and I had a head gasket leak between the coolant jacket and exhaust port and I couldn't use my a/c or drive for longer than 30 min. I went to auto zone bought a bottle of this and a quart of valvoline for the ol gal and let me tell you I'm riding around Phoenix in 108 degree heat with a/c on and not regurgitating out the overflow anymore from exhaust gases in the coolant this stuff is a miracle. yes one day I will pull the heads and get to the gasket and provide tlc but this helped for certain

[@Darksyne]

Glad it helped! My TL has a similar engine to that Accord V6 and there hasn't been any long term side effects after flushing out the excess stop leak.

[@petrukgareng]

oh yes K seal work 100%..my 1997 ford f150 never running hot any more after I put K seal

[@niteblaster1]

how did it stop it running hot🤔

[@kimanitansimore1172]

this real work

[@Spac8]

It says don't pour on top of the radiator core, add to expansion bottle or via top hose.

[@ghenghiskhan626]

really work this stuff fix my car i drove home it saved me 1000us only cost 40 us and it stop smokes and your car runs good blue devil got competition now

[@Darksyne]

make sure you get rid of the excess stop leak, either do a drain and fill of the rad or the reservoir every now and then. Glad it worked for you like it did for me!

[@mirandabri834]

Here's a little tip man........ Anytime you get your engine at operating temp, make SURE You PUT YOUR Radiator cap back ON BEFORE You turn the vehicle OFF!! Otherwise your gonna SEE your coolant/antifreeze Pour out in a BIG Mess!!

[@Darksyne]

Good Idea :o not a lot of people know that

[@mirandabri834]

Just trying to help out this younger generation. Thank you

[@alanwatts8117]

It work for me i have a mercury mountaineer 2006 4.6 it was leaking coolant i put the kline sealer and it works great 2 years later coolant still the same level not a single drop lost

[@Darksyne]

Good to hear that it worked for you. Make sure you keep an eye on your coolant levels and probably a good Idea to flush out any left over K-seal and replace it with fresh clean coolant.

[@risetolearn5184]

I was looing coolant in reservoir every week. And Gas bubbles noticed through Radiator. Confirmed It was a head gasket leak. Then i tried K seal for Head gasket. Noticed after one week, no coolant lost. Seems this works.

[@joshclayton5177]

Hey mate, did you leave the cap off when letting it idle for 15 mins? or put it on thanks

[@Catherineone]

My man told me when you put it in have the engine running.

[@toxicmasculinity6554]

The instructions say start engine after you pour the kseal.

[@BigAlWillis]

good info. I'm going to give it a shot. van leaks water & definitely a head gasket. it still runs great so I'd like to get some more miles out of it if possible. thumbs up the vid

[@Darksyne]

Jason Voorhees haha glad I could help thank you!

[@Hinokami_TT]

Did it work?

[@BigAlWillis]

@@Hinokami_TT worked for a month or so but it started leaking again. I scrapped the van because the repair was going to be like 3k and it just wasn't worth it.

[@Hinokami_TT]

@@BigAlWillis oh wow! Did you put the whole bottle?

[@BigAlWillis]

@@Hinokami_TT yeah it's just a Band-Aid it won't work for long

[@OctavianDNeal]

I have a 2007 Ford Focus. I wanna get some k seal because I’m having coolant leak problems when it gets hot. I wanna know if this will work.

[@nicholecrouch311]

Man I just did the heater core in my 05 Grand Cherokee Laredo and I'm nervous about pouring a sealant in the cooling system again I had put bars leak block sealer in because my head gasket is leaking into the Pistons and it worked all right didn't plug anything up other than my reservoir just because the inlet outlet hole is like 3/16" but since I put in a brand new heater core because the old one literally ruptured and I just bypassed it because it was springtime and warming up not getting cold I pulled my oil cap a few weeks ago and noticed the white cream of Doom on the lid so I poured in a bottle of bars block sealer the $30 bottleand it seemed to work alright it cut down almost every bit of the white creamy stuff that develops on your oil cap whenever water is being burned in your engine bay area well since I put in the new heater core I flushed that system completely, well now the white creamy cap does Doom is back underneath my oil cap and I don't want to plug up my heater core because it's just now starting to get real cold outside song kind of like on the halfway point of not doing it or doing it

[@canadianbison1071]

Hey it worked in my old Ranger pickup when it started losing coolant. Poured this stuff in like how you did it and I barely noticed any coolant loss after about a week and it lasted long enough for me to get rid of the truck.

[@brianestrella374]

My car was using coolant on long trips, and there was bubbles on the radiator, I didn’t have the money to change the head gasket rn soo I just found out about these sealer’s and bought the K seal, drained and clean the whole system put new coolant on it and the k seal, let it idle for 30 minutes, then let it cool for 3 hours, again idle for 30 minutes and cool for the rest of the night, about 10 hours, there’s no bubbles, doesn’t smell like coolant getting burned and doesn’t smell like gasoline on the reservoir.

[@luisduar573]

This product does work, the engine block it's cracked and you could see the antifreeze at the bottom and after use k seal I don't see any fluid.

[@gregorythoman8281]

If you have a head gasket leak you can easily tell by checking your oil. It it looks like a milkshake you have coolant in your oil which means you have blown head gasket.

[@Theywaswrong]

Coolant leak could be going into the exhaust system and out the tail pipe. Head gasket leak doesn't always go in the oil or vice versa. If you oil looks good and you dont see any oil in your water BUT you are losing coolant, its going out the tailpipe. A bad leak will have a good bit of white smoke, steam. A very small leak you may not notice it but if you are losing water and its not in the oil, its going out the tailpipe.

[@larrymatheny8399]

Words wouldn't do it justice!!!

[@Darksyne]

Glad I could help!

[@JordanpauLynn]

I had to start it and drive it every morning for two Winters straight and it made the engine overheat do to of course that I mentioned a klusterfuk for a Gage cluster Did I mention I have the milkshake in the oil, the whole nine yards Damn I feel stupid, well anyway I chose K-Seal, and I'm glad I did, because it f****** works 🏎️🏁 ♈™

[@Theywaswrong]

It may not say it, but if I were going to use it, I would remove the thermostat if you pour the radiator so it circulates immediately.

[@Darksyne]

Some cars have the thermostat in an inconvenient location so it’s not easily hot swapped. I was going to replace mine anyway due to age so it worked out for me.

[@adam10532]

Great video... how long did the stop leak last?

[@Darksyne]

Actually about to do an oil analysis. If it comes back showing no traces of coolant in my oil then it’s good news that this stuff is long lasting!

[@samtx]

How many miles after you did flush and still running good on the same coolant ? Thank you

[@Darksyne]

@@samtx For me I left it in after about a week of driving. Probably wouldn't go longer than 1000 miles since that should be more than enough time for the stop leak to take effect. Again this is only my opinion though.

[@Ari-de7qg]

I have a 2005 Honda Civic. It has a bad leak and is blowing thick white smoke out the exhaust. The car also overheats after about 30 mins of drive time. It still runs perfectly fine though. What do you think the problem could be? Do you think this would help?

[@Darksyne]

Make sure you have enough coolant in the car and if you're constantly losing coolant then try pouring a bottle of the K-seal in the rad or overflow tank and see if it slows down the coolant leak.

[@ghenghiskhan626]

i got ulitmate k seal permenant sealant works

[@quinnguy9484]

Thanks for the video. should I pour the K-seal directly into my coolant reservoir? The temperature in my car went to H last night...since then I've replaced my coolant twice today. I'm hoping K-seal will help. Should I pour this directly into my coolant resouvier? I've heard some people pour it directly into the radiator. Thanks in advance for the feedback.

[@Darksyne]

It'll work better when you put it in the radiator but they say it also works if you put it in the reservoir.

[@quinnguy9484]

Darksyne when you put it in your radiator did you have any coolant in there or had you already flushed it out?

[@Darksyne]

+Quinn Guy I drained a little coolant from the rad so that there was enough room for the K-Seal to go in.

[@angelsdevils2956]

Yes do it

[@Netsolace-tech]

Guys will this help over heating issues in the car? I don't really have leaks of coolant but somehow my coolant does evaporates. Will this help? Thanks in advance.

[@niteblaster1]

I used half bottle drive around for 10-minutes and it lasted 9 months

[@ingridlewis4383]

Thank you

[@compoza38]

yeah bars Head gasket suck I'm leaking the ish out of coolant, I'll try it!! Aye what type of coolant you're using? never seen blue coolant before?

[@Darksyne]

Honda's subarus, nissans and Mitsubishi's dye their coolant blue because it's formulated differently than other cars. Bars leak won't fix leaks that stuff reacts with heat and only works on the headgasket but could clog up other parts. Trying to flush the unused stop leak has become a pain though.

[@herbICG]

So, after all these months, what are your conclusions? Still keeping coolant form escaping the system? how long after pouring do you recommend flushing the rest of the sealant? And do you know if this sealant works with water in the radiator instead of coolant? thanks

[@daby8399]

Darksyne yep I just use this shit (bars) and my car won't start the cranks but it won't start I'm assuming something is clogged

[@uotf]

Hi I noticed you poured the hole tub in can you put too much of this stuff in ? How much should I put In my r125 thankyou ? And does the k seal harden after you fixed the hole what happens to the rest going around other parts ect thankyou advice would be great

[@Darksyne]

They make two versions, the regular one you see here and the bigger K-Seal HD for Heavy duty trucks with large cooling systems. The whole bottle should be just enough for most cars but if you have a car with a tiny cooling system like a 90s Honda Civic then maybe half the bottle will do. All the in-used K-Seal should still just be free flowing in the cooling system. I made a video of what it looks like when mixed with coolant.

[@Hinokami_TT]

Do you have to drain your whole coolant? Or just a little bit to add the k seal?

[@samhicks97]

I'd opt to drain/siphon some coolant till you can get K-seal in. AND to top it off with distilled water or coolant, to promote fresh fluid mix with the sealer.

[@DTUFINOPhotography]

I have an issue where the coolant goes into the expansion tank but not back into the radiator. Oftentimes i need to siphon out the excess coolant from the reservoir and put back into radiator. I don't have milky oil, i've only overheated once, because i forgot to put the coolant back into the radiator from the expansion tank, but, i changes my radiator cap, radiator, thermostat, and hoses.... i don't see any physical leaks at all. i may try this.

[@bonniematthews2500]

I hv the same issue. No leak under car, no white smoke, but it expansion tank fills on highwsy w ac on and cooland doesnt return to radiator. Ive replaced head gasket a few yeaes ago, plus radiator plus water pump...so im trying thus next on my 2002 subaru. It only has 119,000 miles on it. Hard to comprehend head gasket woukd need changing again. Makes me wonder uf my mechanic really changed it at all. Im trying thus stuff tomorrow

[@MartinSage]

After 24 hrs the Toyota up truck still overheats from bubbling after 15-30min. I used their "Ultimate" head gasket stuff. Put in upper radiator hose in warm engine

[@ecocompanycorp]

Did you leave the cap off the whole 15 mins?

[@abdulrahmanhabashieh6865]

I have purchased this product but I would like to know the correct way to use it, after using this product should I take out the cooling water and clean the cooling cycle then pour new water or what?? Should I mix this product with water or coolant?

[@leexgx]

Usually just stays in the system until you replace the coolent after 3-5 years (depends if your using blue/green coolent or g12/g12+ witch is long life) last time I used it I didn't flush it (more then 5 years ago, water has been drained but it flushed 2 times in last 2 years) about to get some more because got bubbles now and heater core sometimes stops working until I get to 1800rpm (probably because the system was emptyed all of the k-seal is gone from the system) I thought k-seal was for external leaks so was looking for gasket sealant before having to change gasket or the car it self, but seams k-seal is goto it be really helpful if the sealent companys actually stated coolent compatibility like g12/g12+ witch is very common but liquid steel type products usually incompatible with (believe its fine with g11/g10/blue/green normal 3 year life coolent stuff) but k-seal is compatible with long life 5 year (g12/g12+/red/pinkish colour)

[@heavenlee1965]

We just used this liquid as a desperate attempt to save our truck and WOW it actually worked. We did it about 11/2 months ago. And just would like to know how long should we expect this "liquid bandaid" to work?

[@Darksyne]

My car still hasn't lost any coolant so that's a good sign. Just make sure you flush out the excess stop leak so that it doesn't clog up the system

[@westside_baby5260]

Wonder will it work for my 95 Honda accord

[@mhemedmahdjoub2692]

Well i have à jaguar x type and the head gasket it started. I'm always refeeling the coolant and the car put some bubls on the cap of the coolant water I don't what I should, plz do u advise me to use this one? Thanks a lot

[@solomontillman1574]

Looks like you don’t have a choice

[@jessicafaith8439]

Will this product damage my system if there is no leak? My vehicle shows several signs of a possible blown head gasket.... But I have no way of ascertaining for certain

[@Darksyne]

You can have a mechanic perform a head-gasket leak test or your car would burn a lot more white smoke than normal and smell sweet if it's burning. So far the K-Seal hasn't damaged anything in my car since I poured it in years ago. Once I noticed the leak was gone, I flushed my old coolant out with new coolant and made sure the un-used K-Seal was removed before it caused a clog. Hope this helps!

[@paranoid5881]

I have a Nissan Xterra 05, it started over heating so I had new thermestate put in, new radiator just incase and also got new hoses, coolant flush with new water pump...after all that they say its still over heating and I need a head gasket which will cost me $3,500 US. Bought K-Seal and hope it works cuz I don't got 3 plus grand now.

[@sickfoo5506]

Did it work

[@paranoid5881]

@@sickfoo5506 it worked, if done right. The 1st Tim ed I didn't heat up the engine and turn on the heater. 2and time I followed instructions. No heating problems for the last 8 months 👍

[@greathey1234]

There's K seal and there's K seal ultimate, the latter seems to be specifically for the head gasket and the former for all leaks. I am really confused

[@billroberds9075]

Is it still running?

[@christyinthecarolinas]

How did this work?? Do you think this will work on my 2007 Chrysler PT Cruiser water pump?? Its leaking but I don't have the 1240 to 1550.00 USD that I got quoted to fix it!!

[@Darksyne]

Give it a shot it should work. If it doesn't then it's better to get rid of the Pt Cruiser and use that $1500 to get a better car since those cars aren't reliable.

[@One-Crazy-Cat]

That won’t seal a pump. Lol. And that’s way too expensive for a pump job find another mechanic.

[@davejerome1929]

where do you put k seal if you cannot find the radiator cap. Is it ok to put directly into the resevoir instead?

[@helpinghal]

Yes..

[@ATL3xtra]

what about leaks at the water pump seal? I am getting water out of the weep hole. Isnt that a water pump seal issue

[@Darksyne]

Unless the water pump is expensive or labor intensive then I recommend just re-seal or replace the water pump if it's easy enough to do. Otherwise this might slow the leak down but not stop it completely as this works best engine block, radiator, or head-gasket leaks.

[@mj-7444]

Blue Devil Big Yellow 32oz DaBomb

[@saltpepper1894]

i didnt have luck with blue devil, but K seal did work

[@joerichards559]

Will this work on a 2009 ford taurus

[@abraraziz86]

What if My car's heater does not work, will this product help me for fixing gaskit???

[@Darksyne]

If the heater doesn't work then that means coolant isn't getting to the heater core properly probably because it's clogged. I don't think this would work since it's meant to just stop leaks.

[@jase042086]

Is this product still holding up. I'm sure I have a premature head gasket leak, no white smoke, no discoloration oil, car stays cool (checked temp with scanner) but from radiator I do still have small bubbles here and there. Already burp't and small bubbles eventually continue to come out, couple seconds in between. Car does need some cup water after a month. I don't want to add this product if its going to make things worse. I own a Jeep Cherokee 08 3.7.

[@Darksyne]

yeah those Chrysler 6-Cyl engines are notorious for having head-gasket failures. Your symptoms sound similar to what my car had, small amounts of bubbles, losing coolant slowly but no white smoke or overheating. I used the product when making my video and all of that disappeared within the week, I couldn't believe it! Product is still holding up today after 40k+ km, just remember to flush the excess stop leak out of the system once you see that the product is working just so it prevents clogs.

[@jase042086]

Thank you very much for the prompt reply. I’m going to give this a shot sooner that later and hope for the best. I will also relay my results, to be continued lol......

[@Darksyne]

Jase042086 haha alright good luck!

[@amirza1985]

My heater blew a pipe and leaked all the coolant out. My Santafe grand 2015 overheated. Now losing radiator fluid everyday... It overflows out of the coolant reservoir. Mechanic says need to replace my gasket and will costs 1000's. Heater doesn't work, will this liquid work for me?

[@fivestarvp]

Yes!!

[@omarzaragoza2797]

A mechanic wanted to change my water pump but my pump is with my timing chain on my g37 infiniti put half a small bottle of k seal no leak car isnt overheating and coolant is full

[@Darksyne]

Nice! And that’s on a modern luxury car too!

[@omarzaragoza2797]

@@Darksyne i read all the comments about how it did work and i thought it was a long shot but its amazing i would recommend it

[@adamsangels9874]

Omar Zaragoza you. Mean your mechanic wanted to charge you for a new pump while putting a can of this shit in

[@dannyphillips8835]

BAR SEALER NEVER But did use Bear's head gasket sealer sadly did not work .They did say need two bottle on a v8 .But I used only one bottle .Week later water pump went out .Did not fix .. My 1995 firebird lt1 nightmare to get to even the spark plugs much less the head gasket . I sure wish I had the cash to get this done .Just keep adding anti freeze . No place to do the work myself either .

[@dawnlokki4734]

Anyone help..... My symptoms are not major at the moment but, Sometimes the heater blows cold. Losing coolant but not to fast. . Not over heating yet but oil starting to look creamy under oil cap.. Also car is losing power.... I know it's the head gasket.. Do you think this would work for me... Cheers guys....

[@Darksyne]

Yeah sounds like a severe blown head-gasket. First I recommend changing the oil and coolant then if you want to try to repair with K-Seal then I recommend the K-Seal Permeant Block and Head-Gasket Sealer: amzn.to/2PbqQ6R Since that's a more heavy duty product meant for blown head-gaskets. The K-Seal is meant for slow leaks and minor headgasket leaks so I recommend trying the K-Seal Block and Head-gasket specific sealer. Just remember to change the oil and coolant first to avoid cross-contamination.

[@dawnlokki4734]

@@Darksyne ... Wow..Severe.... .Sounds terminal.😕👍

[@Darksyne]

It can be fixed, it's only terminal when your engine stops working :p But once you see a milking colour in the oil, that means coolant and oil is mixing so you should to something sooner rather than later. That's why I recommend the K-Seal Headgasket and Block seal because its a stronger product than the K-Seal from this video for larger leaks like in your car.

[@dawnlokki4734]

@@Darksyne ...Very much appreciated. .. In fact the mechanic checked it over today and the oil only has a slight discoloration at the moment and not like "milkshake" 😆 yet..... Clearly mixing. .. Seems I may be able to save it from dying and keep it going a little longer untill New car... Huge kudos 👍👍👍

[@nameless9858]

The heater blowing cool is the worst especially in cold states. Will this stuff fix that issue? What is the reason behind the heater blowing cold in relation to head gasket

[@danishsafdar2692]

Hi is this permanent solution for repair the radiator leak or temporary? Thanks

[@Yyyyyy5]

Most head gasket sealers are actually a permanent fix.

[@jobro1511]

hi can i use k seal hd in a 1600cc car

[@jarrettjohnson5067]

It work for my semi not a single drop gone in my radiator I used 3 bottles

[@Darksyne]

Nice! Glad to hear it worked for another person. Btw they make a K-Seal specifically for heavy duty trucks that comes in a bigger bottle so that you don't have to spend extra money buying multiple regular bottles. It's called K-Seal HD I think.

[@rontanner9093]

Can kseal be add when you have already put bars leak head casket sealer in , will it hurt anything

[@IndyPokerDude]

Yes, but you should do a thorough flush to clean coolant system of loose or left behind remnants of the bars leak. I would disconnect all hoses and remove tstat, freeze plugs, and tstat and thoroughly flush engine block until your certain all residuals and unused bars leak is removed and flushed from engine block water pump and heater core. Then I would repeat the same process with the radiator, hoses, reservoir. Flush and clean as many times as needed to be certain you've eliminated the old bars leak from all the aforementioned components. Once you've accomplished ridding the old bars leak from all the components and areas of your vehicle, you can confidently start the process of administrating the kseal to your coolant system, once it's completely put back together from your prior processes eliminating old sealer. I think mixing the kseal in separate container with distilled water and manufacturers recommended antifreeze specific to your vehicle then introducing that diluted cocktail added directly to your radiator filler cap opening as suggested by other wise and experienced contributors throughout this thread. Taking the extra time to prepare and go the extra mile to reduce opportunities for process failure or less than desirable results will definitely increase your chances for success or accomplishing an outcome you desire. Follow kseals directions for how it pertains to vehicle and check out kseals additional advice, tips, and more valuable information that may be helpful and beneficial with your specific circumstance, likely increasing your overall understanding while also adding to your knowledge so that you can be better equipped when considering your options to find a solution to your vehicle issues. If you decide to take the task on yourself you've armed yourself with more knowledge increasing your ability to identify and complete the processes required insuring your sought-after results are accomplished to your satisfaction. In short, there's more than one way to achieve your goals with regard to repairing your vehicle. Like all other dilemmas we incur in life, to garner the best possible solutions, shouldn't we put ourselves in the best possible position to allow for the most or best opportunities to acquire the best solution, either self generated or received by other means. I've learned through trials and tribulations, one of the secret ingredients to limiting the risk of failure and increasing the chance of success, is due diligence. When we have the mindset that achieving the outcomes we desire, experienceing success, and finding solutions that are satisfying, the journey getting there can be influenced by our commitment to understand, believe and follow through with accepting and being if the mindset that we must focus on the one and only part of the process of influencing the process of the outcomes, which is controlling of what we personally can control. Realizing that I can do that and that's the only thing I have 100% control over regarding positive solutions, success, or accomplishments is me and if I'm going to influence in the only way possible I can. Due diligence is a common denominator those wanting solutions and personal positive outcomes to desires they have. This is part of a mindset that is encompassed by those that care to be successful.

[@davesmith-rs1yo]

It says put hearted on cool setting.

[@salihanbaridji4718]

No add water anymore?

[@josephbohme7917]

even so thermostat should be removed if you want it to work more easily

[@Darksyne]

Joseph Böhme too much work on this engine. The instructions on this product doesn't require you to remove the thermostat anyway. I warmed up the car and cooled it off enough so I'm able to remove the rad cap.

[@beeastman1235]

Why did you add to radiator and not the overflow container like says in directions just wondering?

[@Darksyne]

Beeastman123 the overflow container would've put coolant in the radiator anyway. This just prevents the stop leak from settling on the bottom of the overflow tank and not making it to the radiator.

[@One-Crazy-Cat]

Ideally you DO Want it in the tank not directly in radiator! Always someone who cannot follow direction or feel they know better than the manufacturer.

[@tunasam5386]

Best way to DO IT ....GET AN EMPTY COOLANT JUG PUT WATER IN IT HALF WAY THEN PUT COOLANT MIX IN IT SHAKE IT UP GOOD THEN LET IT SIT FOR A WHILE ...GO CHECK YOUR CAR MAKE SURE THE RADIATOR IS EMPTY ...AND THE ENGINE IS COLD .. START CAR RUN HEATER FULL BLAST THEN OPEN THE HOOD AND RADIATOR CAPP PLACE FUNNLE THEN START POURING SLOWLY UNTIL THE RADIATOR IS FULL CLOSE RADIATOR THEN PUT WATER IN JUG AGIAN AND ADD TO RESIVIOR....DONE GO RIDE AROUND FOR A BIT AND YOUR DONE. .....PS.. MAKE SURE THE COOLANT YOU ARE USING CAN MIX WITH WATER!!!!

[@usamakamal2092]

Hi, did you pour it on an empty radiator?

[@Darksyne]

Not completely empty. Should just be low enough so you could pour the whole bottle in it.

[@usamakamal2092]

My radiator is not holding any water at all. Do you think it will work?

[@MerkinMuffly]

Ovaltine will do the same thing at less price.

[@Darksyne]

Ovaltine will also clog up your rad and water pump 😂 I heard ground pepper or walnut shells help if you want a cheap ghetto method for your beater car.

[@jordigimenezvidal3690]

Pero eso esta bien echo???,yo creo que tienes que quitar la parte de refrigerante por la misma parte que vas a añadir y asi dejar el nivel correcto para que el tanque tenga expansión,y el bote de k-seal es para 21 litros de refrigerante es decir unos 11ml por litro de refrigerante,un motor de 4 cilindos lleva 4 litros,uno de 6 cilindros 6 litros y v8 8 litros,es decir si tu coche tiene 4 cilindros yo pondria 11ml por cilindro osea 11x4=44ml en el tanque de expansion.

[@12345gizzmo]

Your suppose to put your radiator cap back on and drive it with the heater wide open for 15 minutes it works better that way for me anyway it did

[@Darksyne]

Yeah I did that but I couldn't really film myself driving at the time lol

[@samtx]

how many miles was kseal good ,if its still good ,also if you drained coolant right after kseal fixed one drive or after a while as it looks like better to drain all coolant right after kseal so not to clog others

[@bilalahmed2123]

What's up with these Acura TL's having all these issues especially the transmission. These were to supposed to be bullet proof !

[@Darksyne]

Still is a bullet proof car. The original design of the transmission was bad but I got it replaced with an updated design under warranty. It still wears and tears like any other car.

[@barryzelcer7909]

whats the blue windex like liquid you put in after the K Seal?

[@Darksyne]

OEM Honda coolant. For some reason it’s dyed blue since they call it “Type 2” coolant for the modern Honda’s and Acura’s.

[@at1838]

Does anyone know, does it matter whether you add to a cold or warm engine? Instructions say it does not matter. Do you think it is better to add to a warm engine to make sure the thermostat is open and the coolant is flowing? Does it matter whether I am using this for a head gasket versus another type of leak? thanks so much for the video!

[@Darksyne]

It doesn’t matter but you should be careful when the engine is warmed up because then the cooling system is pressurized.

[@WildBill541]

@@Darksyne Hey, so did this hold up for you in the long run? Any issues come up?

[@vkhiev]

You should have closed the radiator cap

[@lxwolfcorleone]

Can you use this to seal a blown head gasket

[@Darksyne]

Depends on how badly damaged the head gasket is. If its a small head gasket leak like mine it'll work but if the headgasket is completely blown or warped and large pieces are missing then no stop leak will work.

[@glennhearn401]

work on my car it works as it says on the bottle brill stuff its worth a try for what it cost

[@patrickbateman3944]

Left 4 Troll part 12 when dude? hahahaha

[@gregreece2073]

Put this stuff in my 98 Ram Diesel this AM & by the time I got home (10 minutes) my H20 temp gauge is almost pegged. How do we remove this k r a p ?

[@Darksyne]

Greg Reece your system was probably already plugged up with rust and corrosion and the sealer sealed everything further. You gotta flush the cooling system either with a chemical flush or a shop that has a flushing machine. Good luck

[@valeriestramennio9722]

Darksyne - I just had my system flushed about 5 months ago. So my system should be good to go for using this...as I have a small gasket issue (It takes approximately an hour of the car running at operating temperature before it overheats)....I intend to flush the system a month after using it, whether it works or not. After I flush it, will it effect the seal that was created?

[@Darksyne]

So far the K-Seal is still working even after I flushed it. Theres still some left-over particles that's hard to remove, but once the K-Seal starts sealing the leak it's pretty much impossible for it to be removed unless you physically scrape the stuff off. There's gonna be a lot of excess K-Seal once you pour it in after it targets the leaks so make sure it does get flushed out before it creates a clog. Hope this helps! :)

[@One-Crazy-Cat]

Cooling systems that have pressure loss the temp goes up. Pressure raises boiling points from 212 up.