We Used FLEX SEAL As Our Engine's Head Gasket! Then Fired It Up!!!

The science channel is back!!! We figured you guys would enjoy some REAL DEAL testing of Flex Seal!

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[FlexSeal]

What will you Flex next?! For future reference, we do not recommend applying the Flex Seal Family of Products on a gasoline tank, oil tank, radiator, or on or around any other flammable liquids or ignition sources (such as Engines). Our team is always available for tips, tricks and safety advice or visit our FAQs.

[mikedrop]

I love how Garrett can go anywhere and make friends and have everyone feel better after they talk to him. What a good guy. Especially when YouTube seems to turn people into rich, calloused, arrogant and obnoxious jerks or depressed, miserable and beat down husks of their former selves. Cleetus has managed to walk that middle line.

[accordver]

Miss this stuff. We can't all afford 7 second drag cars, but this is right up my alley lmao

[stacyp]

I agree with Seth’s garage, try it on a regular daily driver. Retorque the heads after a couple of drives and see how long it lasts. It was very impressive that it lasted as long as it did

[robbierobbie]

I can't get enough of this trustworthy, scientifically backed advice. I will be upgrading all my vehicles head gaskets to FlexSeal! 🤣

[bubbabelt]

Big electric turbo vibes, glad you’re finally getting back to the science. Nobody comes to this channel for “fun content” we need the science 😂

[TheVoid]

Accurate representation of how Subaru makes their head gaskets

[spagsketti]

I want to see it applied to the old metal head gasket reusing it.

[northernmonkey]

PLEASE PLEASE PLEASE, the intake/flamethrower 5000 needs to be George’s new t-shirt!!! Laughed so hard w/him banging that nitrous button!!!

[MrE.]

That rocket nozzle intake is ingenious wheelie control, McFarland Engineering at it's finest!

[ianstephens]

I love how positive Sam always is. No matter what his glass is half full

[Rob-fcwg]

14:26.
The Holden ute sitting there and lookin' a little homesick.

[PFIBrent]

I’m actually impressed it lasted like it did . That’s awesome 🤣 this is real science !

[hiasakikitsune]

I think a good coating of flex seal on the tires would make some good instant slicks. Ya know if you drive to the track with some radials and don't have a set of slicks to use at the track? Flex seal you some home made ones!

[trippydrifter]

I was just thinking a few episodes ago. Man i wish we had more of those science experiment videos. This should be an interesting one.

[RealSteelFabrications]

Love the science videos. Y'all are always spot on with the hypotnuse!

[davidblanck]

You definitely deliver what the people want. This was so funny.

[danbourg]

These three guys at McFarland Racing are the brightest minds in automotive science! I was really hoping the Flex Seal would have lasted a long time on the Blazer so you guys could be featured on the infomercial...

[carsandguitars]

If all head gasket failures were like that, no one would ever ask “do you think my head gasket is bad?”

[operatorfig]

"I'm from Arabia. How many camels is that?" Fucking top notch comedian