Original subtitles

[Faye] Oh, my gosh.

You guys, I'm so tired that was a long day.

Do you guys want to stop for dinner?

-[Faye] Yeah. -[Bisi] Yeah.

I think towards down there's a place that we can pull over with a restaurant row.

Okay, sweet.

[Bisi] What the hell?

-[Bisi] What is... -Oh, my God!

-Oh... What the hell? -What is that?

-[Bisi] Tory, was that you? -[Faye] Oh, my God!

I feel like it came from the back seat.

-[Faye] No. -[Tory] It was.

It came from that side of the car.

[Bisi] It wasn't me, I tell you that.

-Roll your window down, Tory. -Roll down, Tory. Roll your window down.

[Bisi] Oh, that was so bad.

I lost my appetite. Thanks.

You don't have to stop for dinner anymore.

I feel like it took forever to get the smell out of here.

Woof.

[narrator] Meet the team.

This might be the miracle coolant that everybody's been searching for.

[Faye] Oh, no!

[narrator] With the mechanical expertise...

[Faye] My main concern is structural integrity.

[narrator] To test all things automotive.

The engine died.

[narrator] The more that we push through, the more fuel siphon out.

And boom.

[narrator] This is Motor MythBusters...

[Bisi] Hit it.

[narrator] Where science meets the streets.

Man, this thing has some get up and go.

Oh, man, I love luxury paired with speed.

This is normally not my style,

but in this particular case, I'm a little bit on mission.

I have a myth in mind based off of an incident someone,

Tory, released.

And you know, it wouldn't have been that big of a deal,

except for the fact that Tory, didn't roll down his window and Bisi and I did.

And I feel like the smell got worse in the car.

I almost like it was cycling around like directly on my face.

All right, so I know what you're thinking.

Really, say you guys are going to like test farts?

Of course we are. This is so fricking relevant.

I cannot wait to get this car back to the shop and show it off to the guys.

I think that they're going to love this myth, because this is relatable.

Maybe, even if this car is not relatable to everyone, this myth certainly is.

-[Bisi] Oh, I like this car. -[Tory] Yeah.

Whoa, who's this?

Oh, my goodness, look at this Rolls.

-[Tory] Oh, my God. -Is it nice?

[Tory] This looks good on you.

-Thanks! -Oh!

I got to be honest, I was kind of feeling like

a little bit like I didn't fit, while I was driving down.

You know, but I'm warming up to it.

[Bisi] I like this car a lot. This is an amazing automobile.

We're not going to destroy this, are we?

Well, you know, I was thinking that maybe Bisi could.

No, I'm just kidding.

So, I was thinking really hard about what happened the other day.

Oh, he traumatized her...

Me? That was you, sir.

-It was him. -This chap.

Well, regardless of which one of you it was... Ahem...

I feel like this is the basis of a really good myth.

Myth is, we instantly roll down our windows.

-Right. -Right.

[Faye] You did not.

If a person farts in a car...

[Bisi] Right.

He or she, who dealt it, must roll down their window,

and that is the quickest and most effective way to clear out a smell,

which is the opposite of what we did the other day.

Okay. So we're going to try to figure out

what is the best scenario for the windows, whether they're up or down,

and the quickest way to clear out a car?

Yes, and which ones need to be up and down?

[Tory] Yeah.

[Bisi] And do you want to use this beautiful English automobile?

[Faye] We can't use my car, I only have two seats.

We can't use his car, he only has two seats.

-Yeah. -And your car smells already.

So, I figured this would fit us all comfortably.

And I think this is probably a scenario that a lot of people have been in.

And so I think it's going to be very relatable.

And the amount of science that we can take away from this,

I think, is going to be very useful.

-[Bisi] Yeah. -Yeah, in science.

Maybe we should do like a small scale test...

Uh...

Just to see kind of what are the different configurations

of windows up versus down

and which is the best way to clear out the car?

Good point. Let's go and look around it.

Oh, wow! Look at this. Very, very nice.

Uh.

Oh, did you?

Oh, jeez!

All right. The myth is that someone passes gas in a vehicle,

the window that is closer to them, you roll that down.

That'll clear the car out of any odors the fastest.

We're going to build a small scale model to test it.

[narrator] To see how the airflow reacts

when smoke is pumped in, the guys are using Plexiglas for a model,

a job that's unashamedly in Tory's wheelhouse.

[Tory] I used to make models for Star Wars and stuff.

It was so sweet.

We can get all the chicks, because they're like, wait,

what you working on Star Wars, the movie?

That's hot.

[narrator] If they could only see him now rigging up a toy car,

plumbing in placebo farts and using a fan to simulate motion.

This is serious science here.

[Bisi] Why don't we start with the driver?

[Tory] Okay. So the driver is going to fart.

And then we roll down his window, his window, and then see what happens?

-Your window. It wasn't me. -No, no.

Maybe it was Faye.

I don't know. Okay.

So wow, that's a big fart.

[Bisi] Yeah, that's quite...

[Tory] All right. Shut it off.

[Bisi] It happened very nicely.

[Tory] Look how quickly that just fills the interior of the car, all right.

So rolling down the farter's window.

[Bisi] Okay. I see a lot is coming out.

It's kind of pushing all that smoke to the back corners

and the front corners.

[Bisi] It's almost worse for the people in the back.

[Tory] Yeah.

[Bisi] Tory, I want to try something different.

The other side...

-So the driver is still the perpetrator... -Yes.

But now the passenger is going to roll down his window, all right.

-Yes. You're right. -Oh, yeah. That's ooh.

-Look at it. -[Bisi] Wow.

[Tory] Look at it. Fill that gap.

But you had some... some burritos last night.

-Okay. -[Tory] Here we go.

Passengers turned down their window.

[Bisi] Oh, that's just...

[Tory] Oh, look it, it's like, it actually benefits the driver a little bit.

[Bisi] Yeah.

[narrator] Okay.

So opening either side front window creates circulation,

pushing the odor to the rear with a relatively slow dissipation.

Time to test some combinations,

starting with the front and rear passenger side windows.

[Tory] Wow, look at that.

That cleared out the gas almost instantaneously.

[Bisi] Okay. How about diagonally?

[Tory] Oh, yeah. We'll get it like a little cross with it.

[Bisi] Yeah, see what happens there?

[Tory] I like it.

[Bisi] Oh, see that first burst right there?

-[Tory] Yeah. -That was potent.

[Tory] Rude.

Look at that, just pushed it all up to the front.

If you wanted to make him pay for it...

[Bisi] Well said. That's what you do.

[Tory] You just do it a diagonal window open.

[narrator] But what if, we utilize both rear windows?

[Tory] Smells in the back.

[Bisi] Oh, the front is, wow...

[Tory] Oh, that's just kind of pushed everything to this smell...

-[Bisi] To the footwell. -To the front.

[Bisi] Yeah.

[narrator] We are seeing consistent results,

as the open air forced the flatulence inwards first before circulating.

And we can increase the speed of dissipation by opening multiple windows.

[Bisi] Okay. So now we're going to try the two front windows, here we go.

-[Tory] Wow. -[Bisi] That was really good.

[Tory] In my opinion, that was the fastest.

[Bisi] Yeah.

[Tory] Clearing of all of them so far.

All right, let's go for the obvious now.

[Bisi] Okay, sounds good.

[Tory] All four windows, three, two, one.

I mean that's like...

[Bisi] Just clear everything out, yeah.

-Completely cleared out. Yeah. -That's the best so far.

[narrator] So far, our small scale testing with the fart

coming from the front window indicates that opening

all four windows simultaneously may be the most effective tactic.

[Tory] This guy is the perpetrator, and he opens his window.

[narrator] But what if the fart came from the back seat,

and we open their window only?

[Bisi] Oh...

[Tory] This guy, everybody is suffering except for the perpetrator,

-it's like he's... -Yeah.

[Tory] At least they have fresh air.

[narrator] The fart reacts the same way.

So, who the dealer is, does not affect the results.

Time to take this full scale and see how each window affects the gas flow

on the freeway with the addition of a more noticeable scent.

Let's talk about how we're going to get the farts inside the car.

Well, instead of you having to consume copious amounts of beans,

I brought a proper substitute hydrogen sulfide,

also known as dihydrogen monosulfide.

This is a perfect gas that has that pungent rotten egg smell,

same as your silent, but deadly.

-I mean... -Why you keep pointed at me?

[Bisi] But it's also very corrosive, extremely poisonous

and quite flammable.

-[Faye] Oh! -Why?

-Are you trying to kill us? -Not at all.

Luckily, I have a low concentration.

There's only 50 parts per million.

So it's very low and we're not in danger whatsoever.

All right. Let's test it.

Okay. Ready?

Okay, with that. Get a whiff of that, sir, madam.

-Woof! -Oh!

[Bisi] It's pretty, pretty bad, right?

-But it works. -Definitely! Oh, God!

Well, to distribute our gas, I made a little fart box.

And we have this controller here that will allow just the amount of gas we want.

We don't want to overdo it, and fill this cab with too much.

Hurray! And after a while, we get desensitized to it.

So we're not going to be able to... did you just let it rip?

The test hasn't even started yet, he's ready to go.

Hey, I'm just making sure it works.

-Okay. -[Faye] My gosh.

All right. Well, let's install these things, you guys.

-Okay. Sounds good. -Sounds good.

I'll grab that.

[Tory] Oh, yeah.

So this is kind of fart control center, because we're just hooking up

all the tubing, and we're going to be able to let out some gas

and then we can see which configuration of windows up versus down,

will clear out the car, the best.

Here's for the passenger rear.

[Bisi] The hydrogen sulfide bottles hooked up

to a pipeline with an electronic controller,

so we can deposit with a push of a button.

[Tory] I'm going to take this out and just zip tie everything to this plate.

[Bisi] Okay.

[Tory] Just so because what we're driving around,

-this is going to be like sliding all over the place. -[Faye] Perfect.

I've done a lot of things in Rolls Royce's,

but this is the first time I've ever put a fart machine in one.

[narrator] Since no one will admit to breaking wind,

Faye is rigging the pipe under Buster's bottom in the back seat.

So that will be the consistent ground zero for which the team will test

all variable window combinations.

[Bisi] Woof, oh.

-[Faye] Did you just... -Did you just pass gas?

-[Tory] No, it was this. -Bisi, passed gas.

[Tory] It's the hydrogen sulfide.

We haven't even started to experiment.

-[Tory] Oh, my God. -Oh, he let it rip.

[narrator] When Buster's bottom burps are released,

the entire cabin will be filled.

And with the fabricated fart box fully operational,

the team is ready to test the myth on the open road.

[Faye] It's very smooth.

-Is it B12? -It's a Rolls Royce, hello?

-Is it B12? -It is a B12, yeah.

[narrator] Yup, this beastly beauty comes equipped with all the bells and whistles,

including active air filtration, which senses smells and removes them.

So to make sure they're Dutch, I mean, British oven is tested au naturel.

The guys have disengaged the system,

along with the heating, ventilation and air con.

Faye will keep the car moving at a steady speed.

Tory, will push the button to let rip from Buster's seat,

with Bisi keeping time on how long it takes to clear the air

after the respective windows are open.

[Tory] All right. Here we go.

We're going to start the test in three, two, one.

Oh, it smells so bad.

-[Tory] Buster's farting. -[Faye] Oh, God!

[narrator] Starting with the farter's window to get the benchmark for this myth.

-[Tory] Start the timer. -Timer started.

Oh, jeez, it made it worse where I'm sitting.

[Tory] Oh, my God, it's making it worse over here.

[Bisi] Oh, jeez!

-[Faye] And still here. -[Bisi] I am at 19 seconds.

-[Faye] Oh, God! -20.

Oh, it's almost like it's pushing all the...

Pushing it in.

-Smell over to here. -Yeah.

-You know I feel like it's coming all to me. -[Bisi] Okay.

-Oh! -All right. It's for me, it's gone.

I can still smell it.

I can still smell it.

I can still smell it.

[Bisi] So Faye, let me know when you want to call this.

-Maybe now, maybe now. -Okay.

Let's roll one window down.

That was one minute, 26 seconds.

[narrator] Just like we saw in our small scale test,

no matter which seat is the perpetrator,

the air flow forces the odor inwards first,

providing instant relief to only the passenger whose window is open.

It made it worse for the rest of the car.

It was really bad back here.

[narrator] So to find out how the myth stands in comparison

to our farter, we need to test the other window configurations.

Next in line one in front of the perp, the driver's window.

[Tory] Okay, I'm going to start the farting.

-[Bisi] Okay. -Okay. I'm rolling down mine.

-Okay. -Oh, my God.

Oh, God.

Oh, oh.

It's almost like it's coming through and clearing out.

Actually. I'm okay now.

[Tory] How much time was that?

Fifty-eight seconds.

[narrator] Okay. So opening the window in front of the farter,

speeds up the total dissipation time and testing the front passenger side,

confirms it's consistently better to be near and open window.

Oh, God, that's so good. I don't smell it anymore.

[narrator] But for everyone else...

This is the worst it's been for me yet.

[Tory] Really?

[Bisi] Wow. So that was one minute, six seconds.

Wow!

[Faye] The front windows definitely do a good job of circulating the stench,

possibly because airflow gets the gas moving from a more acute angle maybe.

But what about the opposite rear window?

Here we go: one, two, three, go.

-[Tory] Start the timer. -Timer started.

[Tory] Oh, God. Oh, God. it's getting worse.

[Faye] Yeah. Oh...

[Bisi] It's like it's pushing it in and up to the front.

It's like I'm trapped in the back seat, like it's pushing my head into the upholstery.

[narrator] Opening either of the two back windows

yielded eye-wateringly similar results.

-One minute, 22 seconds. -[Tory] Really?

So it's like the back seats are not the...

[Tory] Winners.

[Bisi] They're not the way they do it.

So I got the winners. We have some good data here.

And so far it looks like Faye's window was the best.

But I'm curious, if we went with windows on the same side, so let's say...

-[Tory] Okay. -Okay.

[Bisi] Two window on the Faye side, and then try two windows on

-Tory and my side. -Okay.

So let's see what kind of numbers we get. So...

[Tory] So maybe we start with busters, since he's farting.

-[Bisi] Okay. -[Tory] Here we go.

-[Faye] For the sake of science. -[Tory] Buster farting it.

-[Bisi] Oh, my God. -It's pretty much, no.

-Okay, go over it. -No, no.

Uh.

[Tory] For me, it's not so bad now.

-[Bisi] For me it's better. -Okay, it's done.

[Bisi] Okay. We've got it. 33 seconds.

Wow. We just like cut our time in the half almost.

[Faye] By doubling the airflow from the source side,

we've halved our clearance time and opening the opposite side

of the window is even better.

-Go. -[Tory] Go.

Oh, no.

Oh, it's like fresh air. That's almost...

I'm, I'm, I'm good now. I'm good right now.

-Seriously? -Uh-huh.

Wow. That was 11 seconds. So I have another suggestion.

[Tory] Yeah.

[Bisi] How about we try diagonally?

I love that idea. Okay, here we go.

Buster's farting. Three, two, one.

Oh, it's like...

It's a perfect cross-breeze.

[Tory] It's like I'm instant.

[Bisi] Everything's getting compacted towards me.

Oh, my God, Faye's crying.

Oh, jeez!

-Wow! -[Faye] Okay.

It's clear, it's clear for me now.

It's still lingering for me a little bit.

-[Tory] Okay. -[Faye] It's still lingering for me.

[Tory] All right. Well, we got to...

Okay. I'm good. I'm good.

-You're good. -Okay, stop.

-[Tory] How many seconds? -Twenty-eight seconds.

-[Tory] Oh, my gosh. -Oh, jeez!

[narrator] So opening diagonally opposed windows in both combinations.

[Tory] Open you, you and I.

Oh, oh!

[narrator] Helps to clear the air, but not before forcing it into the dead zones

and punishing the passengers with their windows closed.

Oh, it's just collecting right here in this corner.

-How many seconds? -Twenty-three.

-[Tory] That's impressive. -Yeah, it's not bad.

[narrator] The team is leaving no stone unstenched.

Oh, it's so bad back here.

[narrator] Testing both front...

It's like a fart compactor back here.

Oh, you poor guy.

[narrator] ...and both rear windows.

-Oh, it's worse up here. -It's worse.

It's worse. It's worse. It's worse. I'm still smelling.

[Bisi] Outside here it is oscillating pressure on back here.

-I don't know if you guys didn't hear that as well. -[Faye] Yeah.

[Tory] It's just hammering the smell inward.

[narrator] Confirming the airflow consistently traps that foul stench

in the pockets of the car, where the windows are closed.

Fifty-five seconds. That was rough.

Buffering was intense.

It literally just compressed it all upfront.

Okay. Now we have the mother of all tests.

Set the timer. Go.

-Oh. -Uh.

Good. I'm good. How are you, Faye?

-It's like instantaneous. -Yeah. How about you, Faye?

-Instantaneous. -[Faye] I good. I'm good, I'm good, I'm good.

-It's almost ten seconds. -Oh...

[narrator] As expected with all four windows open,

our noxious gas has nowhere to hide.

[Bisi] All right, guys. I have some good data for you...

-[Tory] All right. -Yes.

-[Bisi] Based upon the results we have. -[Tory] All right.

[Bisi] Now, anyone who existed in a pocket

where there was no air seemed to get bombarded with just fart particles.

[Faye] Yeah, I feel like we've got a ton of incredible information here,

very scientific data, however, there's an element to this

that I feel like is a little bit subjective.

[Tory] Yeah, 100%.

Like your sensitivity to the smell was far greater than Bisi and mine.

So we need some visual validation on

how the fart particles are reacting and circulating.

And I've got just the thing.

-What the... -Hello.

Did you take up a new hobby?

-No. -Tory!

I have this bellows.

I'm going to fill it with this vape pen and we're going to fill the car

with smoke and we're going to run through our worst.

-Good. -It sounds like a great idea.

I'll get ready, because the rear was the worst of our test.

-Okay. All right. -Okay.

Are you going to evacuate the bellow next to Buster or going to keep it there?

[Bisi] I think we just going to fill the whole car. Okay. It sounds good.

You'll be happy to know there's no nicotine in this.

-[Faye] Wow! Oh, goodness. -[Tory] All right, ready?

[Faye] The two rear windows proved equally inefficient at clearing the air.

So we're using Bisi's window to see exactly what happened

with the airflow coming from the back.

-Oh, goodness! -One, two, three, timer up.

Oh, look at that.

-[Tory] The wind... -[Bisi] So it looks like...

[Tory] The air is coming in over your left shoulder.

-[Faye] It's coming over. -[Tory] Yeah.

But as soon as the air started flowing in over your left shoulder,

it pushed it all out.

[Bisi] I still lingering.

[Tory] We're still smoky in the front.

[Faye] Okay. I've got to say.

[Tory] It is mostly in your corner.

[Faye] Yeah, I know. This is so validating.

Yeah. I could still see a lot of smoke here.

-[Faye] Yeah, like in my mouth. -Just in your footwell.

-You know from here footwell. -[Tory] Yeah.

Just like it's crazy.

Looks clear now.

One minute six seconds, just it's very close to before,

Faye's nose is pretty calibrated.

[Bisi] That's crazy.

-[Tory] That was such a great visual to see exactly... -It was fantastic.

-...what's happening with the airflow. -[Faye] Yes.

Nice work, guys.

I hope we never have to test this ever again.

So the myth that the person who perpetrated the fart,

rolling down the window is the best solution.

Turns out that was actually the worst solution.

-It was good for the perpetrator. -[Bisi] Right.

But it made all the passengers suffer worse.

[Bisi] So true.

No, so especially me in the front, I feel like I was just

in this little vestibule of smell.

Yeah. And let's say that the perpetrator didn't want to assist in the evacuation.

The best thing to do would be to go the opposite side of the offender,

roll down all the windows on that side, or go across.

Right, right.

[narrator] So the results are in.

And the surprise takeaway is the farter's window actually fared the worst.

Yep, no matter which way you skin the data,

all of the combinations which include the window closest to Buster, a.k.a.

the person who dealt it, created slower comparative dissipation times.

So, if opening all four windows isn't an option,

at least punish the perp, keep theirs closed

and open up the windows on the opposite side.

So I've just got to say this one is totally busted.

-I agree. -Totally busted.

Busted.

But, you know, it was really fascinating was seeing the smoke,

how it illustrated, what was happening with the airflow.

You're right. It was such a big eye-opener for me

to see all that smoke just lingering around your footwell

and gradually rising up to you.

-I know. -We thought you were nuts.

Oh, my gosh.

Well, speaking of nuts, I'm never driving with you all two again

under these circumstances. That was insane.

You know, I should actually probably get going on my own,

because I've got to return that car.

-Oh-- -Oh, yeah.

I just want to thank you guys, whoever dealt it,

this inspired this whole experiment.

-So-- -Perfect.

-Good on you guys. -Yeah, thanks for that.

Yeah.

Tory, was the one who...