Do Head Gasket Sealers Actually Work (FULL 2yr TEST with Engine Teardown)

Replacing a Head Gasket can be difficult and expensive. Sometimes your car is not worth fixing and this is where a head gasket sealer in a bottle comes in handy. Do these head gasket sealers actually work? How long do they last? How do they work? What does a bad head gasket look like? Do head gasket sealers clog radiators?
In this video I show you how to use a head gasket sealer to repair the head gasket and test it for 2yrs and 10,000 miles. I then tear down the engine and show you how the headgasket failed, how the sealer worked, and if the radiator got clogged up with sealer.
PEAK OET Antifreeze:
CRC Head Gasket Sealer:
BlueDevil Head Gasket Sealer:
K-Seal Head Gasket Sealer:
Bar's Leaks Head Gasket Sealer:
Head Gasket Test Kit:
Spill Proof Funnel:

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Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.

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  • So it was brought to my attention that my house phone number is on the oil analysis sheet. I am waiting for DE-visions to blur it so in the meantime, please dont call it...

    ChrisFixChrisFixVor Monat
    • Most people would have not noticed it if you haven't pointed it out

      Ratul RahmanRatul RahmanVor 15 Tage
    • Love you Chris Love from GAMERO GAMING ❤️

      Daniyal AhmedDaniyal AhmedVor 28 Tage
    • Should have blurred the reflection off the blue car kinda well kinda say what the new one is 😝

      True PandaTrue PandaVor Monat
    • Great Scott

      Ethan KeeferEthan KeeferVor Monat
    • What I noticed on there is that your address is the same address as Marty McFly in Back to the Future 😳😳 When are you gonna work on the Dalorean?

      Josh LJosh LVor Monat
  • thanks heaps...1M$ worth of info..

    joebert lagahinojoebert lagahinoVor 10 Minuten
  • This guy must be a seller

    vikingnorthgamervikingnorthgamerVor 3 Stunden
  • He hides the plates but funny thing is, in Jersey, you need both plates displayed at all times.

    Nick AndersonNick AndersonVor 4 Stunden
  • How do you think the head gasket sealer will work with a block heater/hose heater?

    Mathias WintherMathias WintherVor 5 Stunden
  • I wish for my car to have a leak so the pistons get nice and shiny.

    mario mendezmario mendezVor 6 Stunden
  • Amazing truly amazing Chris 👏👏👏

    Ryan EslavaRyan EslavaVor 10 Stunden
  • Don't the sealers suggest flushing the cooling system before adding the sealant?

    RMXRMXVor 10 Stunden
  • Lol a week after this video was posted my truck head gasket blew 😂😢

    RobloxMasterRobloxMasterVor 13 Stunden
  • I used Blue Devil on the engine in my 2007 PT Cruiser. It did help but never fixed it.

    Ernest CurryErnest CurryVor 16 Stunden
  • My 2003 Toyota Highlander with a 2.4 L 4-cylinder engine is leaking bad almost directly under the engine block. Took it to a Toyota dealer and paid $200 to get this diagnosis…”pressure test and found coolant leak down right side of engine block under intake manifold. Suspect threads pulled out of block causing head gasket leak. Recommend used engine.” The quote is $6500 for this repair.. My tailpipe doesn’t emit white smoke and the engine oil is not milky. Would a gasket repair kit work in this case since you noted the solution hardens on contact with hot combustion gases? Could the leak be just directly leaking from the coolant holes/channel to the exterior of the intake manifold? If so would it be worth it even to try the gasket repair kit? plan to scrap car if can not be repaired although the engine runs great and the rest of the car is in good condition. Thanks.

    Robert YuRobert YuVor 17 Stunden
  • You’re the man. Thanks Chris.

    KodiKodiVor 17 Stunden
  • What were you using to keep track of the temperature while driving?

    amorgan1019amorgan1019Vor 17 Stunden
  • Dude, most thorough video ever. 1/4 of the way through I realized this isn’t really the subject I was after, but I couldn’t stop watching. I always hit like for your vids but this one made me click subscribe. Very good pocket knowledge to have.

    erowley462erowley462Vor 17 Stunden
  • Many thanks for the long term nature of that test, and thorough analysis. Gives folks a better idea of what to expect, but still shows that it mainly defers the repairs actually needed. This treatment is well known (or suspected) in used cars that have to be dumped. I was up front with the buyer of my Firebird, and told him the engine had less than a year of life in it. However, he resold it without telling the next person.

    Ed TurnerEd TurnerVor 18 Stunden
  • I have read some of the comments. I will just say this. I have a 06 Forester 270000 miles it runs great water pump was replaced and oil pump with timing belts. Had head gaskets changed guess what after 20k they started again. Did research went with blue devil pour n go. The key is follow the instructions to a T no more head gasket leak been 30k miles.

    William ShimaWilliam ShimaVor 19 Stunden
  • Thank you👍

    Raul CoronadoRaul CoronadoVor 19 Stunden
  • Any suggestions for a cracked block?

    jklcksmth booyahjklcksmth booyahVor Tag
  • I wanted to see him just throw more sealer in it and see how much longer it would go lmao

    Long scallopLong scallopVor Tag
  • The copper CRC works great, sealed many bad heads etc ... never plugged the heater core either.

    hallzhallzVor Tag
  • Have a 02 DeVille blown head gasket causing it to overheat constantly by letting air into coolant system. Used blue devil brand sealant. Drove over 20k miles since including some long drives. Has held up 👍💪

    Izak YermanIzak YermanVor Tag
  • The head gasket sealer seals up head gasket leaks, it also clogs up coolant systems. Use this at the end of the car's life. If it's a car you are going to keep, replace the head gaskets.

    Fred GarvinFred GarvinVor Tag
  • The best automotive channel on youtube

    annoythedonkeyannoythedonkeyVor Tag
  • was ur dads car also mifirering cylinder 1 misfire

    yea for whatyea for whatVor Tag
  • My car overheats faster now after doing this.

    JoeJoeVor Tag
  • $5950 for labor. Damn America is expensive

    A DKA DKVor Tag
  • Hi, Chris, This is a great video. I may have head casket leak between cylinders 5 and 6. They have 20-30 misfires every time when I start the engine. I can see the idle speed is down to 400-500 / minute and the car is losing power. Would it seal the leak by adding a few drops of the Bar's liquid in the cylinder? Thanks. David

    David ObamaDavid ObamaVor Tag
  • I have none of those symptoms, but coolant is disappearing with no leaks except at over 45 50 mph it'll spray a little stream of coolant at my windshield (hood off because it broke my windshield) I cannot find the leak or pinhole sized hole where it's coming from. My coolant disappears faster if I drive faster, if I drove slower no spraying. Not heater core, not clogged either, car overheats at higher speeds. I'm guessing coolant system leak or cylinder or head gasket. Which sealer should I use? 2005 civic 1.7l coupe non VTEC

    ShadoeFax1986ShadoeFax1986Vor Tag
  • Great video great channel

    SwampypoliticsSwampypoliticsVor Tag
  • 👍👍👍👍👍👍

    نبيل كلاسيكنبيل كلاسيكVor Tag
  • I got to say blue devil has always pulled through for me!

    John SpragginsJohn SpragginsVor 2 Tage
  • you are cool man 😂

    Inosha AbeysiriInosha AbeysiriVor 2 Tage
  • GOOD ONE BRO! Absolutely thorough! Cheers...

    Mitsubishi Turbo TunerMitsubishi Turbo TunerVor 2 Tage
  • It’s a Pontiac

    Thejas DavalathThejas DavalathVor 2 Tage
  • I wonder what percentage of those that viewed this video own a Subaru?

    Nate RistNate RistVor 2 Tage
  • Blue devil is the worst with costumer service.

    mac Mcphetersmac McphetersVor 2 Tage
  • You are my hero💕

    MaryMaryVor 2 Tage
  • Jaguar f-type?

    Zach Fryling 2008Zach Fryling 2008Vor 2 Tage
  • I had a dodge caravan I used the bars on and I removed the thermostat and I re- torqued the head bolts a little higher and I drove it for two more years and then sold it and it was fine!

    Strange BrewStrange BrewVor 2 Tage
  • Yes, very well done Chris Fix for an excellent program!! Erich from New Zealand

    Erich FeitErich FeitVor 2 Tage
  • Guess what video came out in perfect time?

    CriiRyeCriiRyeVor 2 Tage
  • I'm going to pick up a block tester tomorrow but I'm 95% sure that I have a blown head gasket. I'm not fixing the motor in it. I already planned on buying a new one because the truck is in too good of shape. Looks like I'm probably trying a head gasket sealer to get by until summer when I get my car out

    Mike CurryMike CurryVor 2 Tage
  • Jaguar was a cool car....but n known for reliability

    Neil duncanNeil duncanVor 2 Tage
  • I had a friend who worked for GM back in the 70s and 80s. They put a small amount of Barrs stop leak in every vehicle from the factory

    Neil duncanNeil duncanVor 2 Tage
  • Chris my dad says he can beat up your dad in a fight. Because he would never get to the fight destination in the jag.

    Gamer MastaGamer MastaVor 2 Tage
  • 9:18 speaking of the vette Where has it been? we havent seen it for a log time

    mr gamermr gamerVor 2 Tage
  • That dealership is straight scamming lmao. An average head gasket job at a shop should be 1500-2000

    Aaron JonesAaron JonesVor 2 Tage
  • How long will those head gasket bottle fixes last

    Joseph AlfonsiJoseph AlfonsiVor 2 Tage
  • I get something in my oil small traces of white liquid on my dip stick only in the winter cold under 40 degrees do I have a head gasket leak I have no other issues with the engine

    Joseph AlfonsiJoseph AlfonsiVor 2 Tage
  • What was the funnel test how did you get the fluid out didn't get that test at all

    Joseph AlfonsiJoseph AlfonsiVor 2 Tage
  • 2003 ford explorer used blue devil @ 160,000 miles and she hasn't missed a lick or spiked up In temp in over a year

    Nathaniel GarrityNathaniel GarrityVor 2 Tage
  • I fixed my problem same. No white smoke. No oil bad. No gearoil cooler leak but I have milky reddish formation. So I tried it his and got it that flue gases mixing. Well done Thanks a lot

    LalitkishorJprLalitkishorJprVor 2 Tage
  • Brilliant

    LalitkishorJprLalitkishorJprVor 2 Tage
  • Drove a 90 Ranger 4 banger with HG sealer for years...I don't remember the brand was many years ago, but the ones that work have what the old car dealers use to call "liquid glass" in it...when the stuff hits fire, it turns hard as a rock. Anyways attention to detail is important when using any of these...when I used it, I flushed out the system with vinegar first, then after putting the stuff in, and heating it up, completely drying out the cooling system...I used compressed air first, then hooked up a wet vac to the system, on the blow setting, and just left in on there for hours. I got 80,000 miles out of it, till the head gasket finally gave away so much, sealer wouldn't work. Machinist I gave the head to, to machine it laughed his arse off at how many cracks were in the head, completely unusable. My Dad had overheated it badly years ago, and those 2.3 cast iron engines were bad about cracked heads

    Kevin CozzoKevin CozzoVor 2 Tage
  • Hahaha everyone fell for it, i immediately realized because of the font difference. Plus i think it’s safe to assume your real full name isn’t Christopher Fixtopher

    Conor O'MullaneConor O'MullaneVor 2 Tage
  • Chrisfix nice video when are we going to see the new car

    patrick ontariopatrick ontarioVor 3 Tage
  • White smoke could mean a bad EGR Cooler too! Not everytime a headgasket. They are the same with smoke and the coolent

    Skr172Skr172Vor 3 Tage
  • notice how he said we have 5 million in the community but when the video is posted its nearing 10 million

    faheem muhammadfaheem muhammadVor 3 Tage
  • Why are you driving with a helmet on hard to take you seriously 🤦‍♂️

    Jim BrowJim BrowVor 3 Tage
  • The first step if possible is re torque the head. Very often a small tube of alumasesl or bars leak is all that is needed.

    The VictimThe VictimVor 3 Tage
  • Awesome report

    David DaltonDavid DaltonVor 3 Tage
  • I used the blue devil it worked its way into the water pump shaft seal hardened up and tore it to shreds also ruined the thermostat the only reason I used it was I was finding a tiny amount of oil in the antifreeze it also clogged the heater core engine began to sputter a few weeks later after wasting $70 on the blue devil it went down hill from there I should have never did it .junked the vehicle a month later they promise to refund if it doesn't work they would not

    Eric SchulzeEric SchulzeVor 3 Tage
  • I think it’s funny that the estimate paper didn’t have any shop info on it..

    Tyler LucasTyler LucasVor 3 Tage
  • So what do you do to repair the warped block?

    Penfold8Penfold8Vor 3 Tage
  • "This one worries me" {Proceeds to use it}

    DeathreusDeathreusVor 3 Tage
  • Man this is cool. I would rather just replace the gasket, but I like to know this.

    RustytheFoxCoonRustytheFoxCoonVor 3 Tage
  • I appreciate all the time and money you put in to your videos thanks keep up the good work

    Cash CarbaughCash CarbaughVor 3 Tage
  • Exellent video. Thanks a million!!!

    Wade DeedsWade DeedsVor 3 Tage
  • still waiting for the turbo vid(s)

    yacoubyacoubVor 3 Tage
  • I used Bar's stop leak and I am very impressed, it worked well.

    jimsiggyjimsiggyVor 3 Tage
Do Head Gasket Sealers Actually Work (FULL 2yr TEST with Engine Teardown)