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Pumped Diesel In Your Car Instead of Gas? Watch This
Mechanic and host of ‘The Questionable Garage’ Jared Pink joins WIRED to answer the internet’s burning car repair and maintenance questions. How do you know if you’re buying a ‘lemon’ car? What happens if you put diesel instead of gas in your car? What are some tools that every mechanic should own? Answers to these…
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@thebill2001
October 6, 2026 at 3:56 pm
Don’t drive. Fly instead.
@PyroGam3s
October 6, 2026 at 5:56 pm
on the flight line we had access to jet fuel.. same procedure right? flush it out, replace the filters? asking for a friend
@rabbitholegirl1
October 6, 2026 at 4:07 pm
It dies
@Kingnothing3
October 6, 2026 at 4:10 pm
A lot of good nuance here
@agpagp2894
October 6, 2026 at 4:17 pm
Where are these fuel filters? I haven’t seen a fuel filter on a petrol car since 98..
@9The0Unknown7
October 6, 2026 at 4:18 pm
HOW did you get the diesel nozzle into the full tube?
@InsertEvilLaugh
October 6, 2026 at 4:38 pm
Some people need to be studied. Persistence and stubbornness.
@CharlesSmith512
October 6, 2026 at 5:24 pm
Someone probably used the wrong Jerry can
@matt39581
October 6, 2026 at 6:12 pm
or the fuel terminal might have loaded a bunch of delivery trucks with diesel instead of gas like happened in CO in january
@gabbythechicken
October 6, 2026 at 7:38 pm
Unfortunately some holes are bigger than others . Mine you could stuff your hand in and it’s a premium gas car 😂
@BuffordSchnortRealDirtMx
October 6, 2026 at 7:58 pm
I didn’t scroll down far enough! 😂😂😂😂
@CaptainMisery86
October 6, 2026 at 4:22 pm
what if I fill it with lighter fluid?
@JB-eo3yi
October 6, 2026 at 4:25 pm
Yeah…gas in a diesel 💣
@Tom-cn4cm
October 6, 2026 at 6:29 pm
Even if it’s just sitting in the tank? Even if you don’t start your car? lol that’s hard to believe.
@TruckFan542
October 6, 2026 at 8:05 pm
If you don’t start it it’s a drain and refill kinda thing.
If you do start a diesel on gas you’ll have 2 problems- underlubrication and engine knocking.
Gasoline ignites more readily than diesel, which will cause engine knocking and catastrophic damage to a diesel engine, in addition to the lack of lubricity chewing up the injection pump
@Joe-h1g9x
October 6, 2026 at 4:30 pm
How do I get diesel out of my Tesla trunk?
@skz5k2
October 6, 2026 at 8:06 pm
Open the trunk !
@lynnstevenson11
October 6, 2026 at 4:39 pm
I’ve put lead into my diesel car 4 times now. At this point I just want to kill myself. Sounds like a truck and has cost me a total fortune. 😅
@user-qv9nz1tu5e
October 6, 2026 at 4:47 pm
Um, no…you’re an idiot.
@Vyruhz
October 6, 2026 at 4:48 pm
Definitely not a stupid question, now explain what happens when you put DEF in your diesel tank. That’s a fun one
@AshFurAshFur
October 6, 2026 at 8:22 pm
Hey! My coworker just did that! I’m about to find out via proxy ! 😂(it’s only funny cause it’s not me)
@cookie63079
October 6, 2026 at 4:58 pm
I thought pumps have different sizes for diesel so this doesn’t happen?
@SpaceBird-Founder
October 6, 2026 at 5:07 pm
They do, but some people manage regardless
@CharlesSmith512
October 6, 2026 at 5:23 pm
Jerry cans
@fdsfds7339
October 6, 2026 at 6:15 pm
Depends where you are, sometimes it’s just a different color. But pumping gas is something people are often on autopilot while they do it or also distracted on their phone or something
@Jwilliamstech
October 6, 2026 at 5:00 pm
I was 15 years old working for my brother-in-law and he had a 89s model diesel suburban. He had me flush the block out with desiel while changing the oil. He didn’t tell me to unplug the glow plugs. It was a runaway, I turned off the engine and was standing outside of it holding the keys. It finally stopped, I put oil in it and we took it for a ride. It started running hot, and yes it had a blown head gasket. 😂 Also it fused the injectors to the head on one side. He replaced the motor and never asked me to flush another vehicle out while changing the oil.
@FloorShakerMusic
October 6, 2026 at 6:15 pm
I filled my last diesel car with 15 litres of petrol and it was fine. I just topped it up to fill with diesel. It felt like the engine was going to shake out the bonnet every time I started it, but after filling up with diesel every time I ran it, it was fine.
@mildredbangtree
October 6, 2026 at 6:26 pm
oh I know! Your car goes up in value by a factor of $7/gallon.
@michaelwoods3850
October 6, 2026 at 7:00 pm
Diesel is mostly oil
@Frogger098
October 6, 2026 at 7:22 pm
It’s a mistake until you start making excuses, then you’re an idiot 👍
@bronco1786
October 6, 2026 at 7:35 pm
This video cracks me up 😂😂😂😂
@BuffordSchnortRealDirtMx
October 6, 2026 at 7:57 pm
How in the F did you get the nozzle into the filler neck? 😂😂😂😂😂
@12thDecember
October 6, 2026 at 7:57 pm
A service station in a nearby town won’t pump diesel for their customers. The customer has to do it themselves, no exceptions. Apparently some people drove up and asked for diesel in their gas-fueled vehicles, and then blamed the service station for what happened next.
@johndavidwolf4239
October 6, 2026 at 8:02 pm
You jumped to the conclusion that my car does not have a carburetor and is fuel injected.
@scottmoore402
October 6, 2026 at 8:19 pm
Shouldn’t happen. Diesel nozzles won’t fit in a gas tank on a car
@jaeykub1184
October 6, 2026 at 8:47 pm
Boss called me and says he put gasoline in his brand new truck, I told him do not move it and tow it. He decided to hit the highway and “burn it off” .
@ReclinRR
October 6, 2026 at 8:53 pm
diesel pump don’t fit in a regular car
@garyfrancis6193
October 6, 2026 at 9:08 pm
Who would ever be this stupid?
@JasonWatson-yg1tq
October 6, 2026 at 9:39 pm
It’ll run
@danlorett2184
October 6, 2026 at 9:42 pm
So first, you’re gonna need to explain HOW. Gas pumps are 1/2″, and diesel are 3/4″, so the diesel LITERALLY WILL NOT FIT.
It’s almost like we KNOW we’re dumb and we PLAN AROUND IT.
@rogerknutson9258
October 6, 2026 at 9:51 pm
Jared!
@38unknownhinson
October 6, 2026 at 10:32 pm
Not much it just kinda lubricates everything and then it wont run again until you drain it
@joel9990
October 6, 2026 at 10:36 pm
how hard was it to put a pump nozzle that didn’t fit and fill the tank?
@mitchell7203
October 7, 2026 at 11:31 am
There are plenty of stations with the standard size nozzle on the diesel pumps
@michaelhungate7506
October 6, 2026 at 10:48 pm
Circa 1985, we had a 1984 Nissan Sentra diesel. My sister put gas in it. It ran terrible. Im sure we didn’t get it flushed and she only put 3$ in it. My Dad was furious, he filled it up the rest of the way with diesel. Im sure that wasn’t good for it. That was a good car, a 5 speed and got 55mpg.
@Unknown_Ooh
October 6, 2026 at 10:49 pm
The car will still run, for a couple minutes until the diesel hits the fuel rail 😂
@Doncornball
October 7, 2026 at 12:36 am
WRONG! he is absolutely an idiot. that’s only a mistake an idiot would make
@robotparadise
October 7, 2026 at 1:25 am
So… when i uhhh lost my ice cream cone down there, its fine right?
@tombailey837
October 7, 2026 at 2:15 am
“You’re not an idiot. You made a mistake”
*I really wish more people were like this*
@PotDylan
October 8, 2026 at 8:51 am
If you do this, you’re definitely an idiot
@glebkorniyenko1084
October 8, 2026 at 11:30 am
I almost made the same mistake, thank god they have a different size pumps for idiot protection
@wallie2k747
October 9, 2026 at 12:59 pm
Thats what people have been telling me my whole life but at this point im pretty sure im just an idiot
@johnmorris8444
October 7, 2026 at 2:39 am
I put gas in a diesel tank once. It was super early on a winter day and the pumps at this station I was at are very slow pumping diesel. When the tank was filled in like 2 minutes I knew something was up and that’s when I realized. Never started it. Me and another guy dragged it to the corner of the lot. Drained the tank there and ended up not being too bad.
@ARCHR221
October 7, 2026 at 3:24 am
It sounds like they were wanting to know more of the underlying mechanics and the science concerning the effects that the diesel fuel would have on the gasoline fuel system and why the steps that you outlined have to take place before it is drivable again. They didn’t ask what to do, they asked why it needs to be done.
@harshitsatuwala
October 7, 2026 at 3:49 am
Well I don’t understand why you call petrol “gas”!
@sear-w7o
October 7, 2026 at 4:16 am
I thougtclearly gas won’t fit in diesel tank then I remember Americans calls petrol as gas 😂
@Natedrinkstea
October 7, 2026 at 6:11 am
The car equivalent of food poisoning
@dsmyify
October 7, 2026 at 7:49 am
In UK, diesel is black pump, petrol is green pump. In South Lake Taho, on the way to airport in a hire car, it’s petrol is black pump and diesel in green pump.
@mitchell7203
October 7, 2026 at 11:30 am
In the state it’s usually the opposite, but some stations do it that way. BP being one that I see a lot. Not surprisingly being British Petroleum after all.
@mitchell7203
October 7, 2026 at 11:27 am
What’s this??? A mechanic that actually knows what he’s talking about??? The amount of people that claim to be knowledgeable and think that diesel will ruin a gasoline engine is crazy.
@jacebeleren429
October 7, 2026 at 11:48 am
oh hey man! I haven’t seen you around in a while. Sheesh it’s been years. I hope you are doing well.
@hectorherbert6585
October 7, 2026 at 11:56 am
In 2010 I put RON95 in my Diesel WWT4 2001 van..started drove strange for a few miles (guess the mix was not pure 95)..stopped..had a friend come over to pump the diesel right off the fuel line in the engine bay..put diesel back in…not a single problem…maybe that old tech saved it.
@RDEnduro
October 7, 2026 at 1:10 pm
This would have been a better show if it wasnt so basic with ground level questions and answers about octane rating and putting diesel in gasoline cars. This is general knowledge stuff
@coryaustin7379
October 7, 2026 at 3:39 pm
Not gonna lie, I always do a double take whenever I get gas at a BP.
@jackson92837
October 7, 2026 at 4:25 pm
accidentally filled up with nitro methane and my engine turned into a frag grenade
@Lalalalalkk
October 7, 2026 at 4:44 pm
Y’all wrong, it is petrol not gas.
@r3h0l3s7
October 7, 2026 at 5:49 pm
first off, why are you asking in a comment section when you can just look it up on the internet?
@JavierJimenez-po7fd
October 7, 2026 at 8:07 pm
Got it. So I can put diesel in a gasoline car, but not gasoline in a diesel car.
@RifaiAL
October 7, 2026 at 10:59 pm
Why do Americans use the word “gas” for petrol? Gas? Which gas? CO2 or H2 ?
@serious4gaming696
October 8, 2026 at 12:24 am
What about adblue in a diesel
@wburger2178
October 8, 2026 at 3:11 am
Depends how much diesel!
@nazonrev5087
October 8, 2026 at 10:09 am
I just dont understand why diesel and gas pumps and sockets were designed the same way. So many accidents could have been avoided
@neemancallender9092
October 9, 2026 at 1:12 am
As a mechanic in the 70s
When you wanted to screw someone
Just a little diesel into the tank
Then walk away
🤦♂️🥰
@ov3rload333
October 9, 2026 at 2:39 am
Well my dad put gas in his 2001 golf 4 and ran with it for about 50 miles before he realised his mistake. All that happened was the car would pull very slowly and not get to 100km/h. The car still worked fine after flushing and put some diesel in it.
@Theo-yp2fg
October 9, 2026 at 12:14 pm
This is one of the first things my dad taught me when I got my first car – because it was a diesel and neither of us wanted that mistake. I put 300k miles on her 💖
@ethanmarquardt9981
October 9, 2026 at 1:59 pm
That didn’t answer the question tho
@Bladeworkssystems
October 9, 2026 at 3:59 pm
Both engines. Both fuel. Will sound different but it’ll be fine
@ValidatingUsername
October 9, 2026 at 11:04 pm
He sounded so sad about the gas in diesel issue, real choked up at the end
@GodlessKnightmare
October 9, 2026 at 11:21 pm
You didn’t answer the question.
@ak47marx16
October 10, 2026 at 1:53 am
That’s not a mistake, that’s a definition of idiot. What kind of an idiot mistakes gasoline for diesel or vice versa?
@Leftyotism
October 10, 2026 at 7:49 pm
Sounds as if Diesel wasn’t gasoline. lol
@thtgurlbb
October 12, 2026 at 3:34 am
I definitely thought he was gonna say we’d explode. My ex bought a Diesel truck and I asked him abt the differences in the oils. He didn’t explain it v well but he was like “do not ever under any circumstances put gas in this car… it will end badly” and yeah thts all I needed to know ig.
@BklSarih
October 13, 2026 at 1:33 pm
You still didn’t explain why it won’t run
@tehstinch
October 13, 2026 at 3:47 pm
the diesel won’t burn. too much diesel and it will foul the spark plugs and they won’t produce a spark until cleaned. if there is less diesel and the engine will still run the unburnt diesel will get past the piston rings and end up in the engine oil.
@NasgaX
October 14, 2026 at 12:01 pm
“What happens when you do this?” “Bad stuff”. Thanks.
@Conetall420
October 13, 2026 at 2:36 pm
Yep. If you put diesel in a gas car, it just won’t run. But putting gas in a diesel engine causes premature ignition, and that knocking will blow your pistons and cylinders real fast
@mightbejimi
October 13, 2026 at 9:29 pm
they should have done that to the hilux
@emayex8934
October 14, 2026 at 5:00 am
Does he even explain why its bad tho😂
@NasgaX
October 14, 2026 at 11:58 am
yah this short was useless. “What happens when you do this?” “Bad stuff”. Thanks.
@Andy_EYEKON
October 15, 2026 at 1:27 pm
@NasgaX but he explains what to do which is what most people want to know
@raerae-y2k
October 14, 2026 at 12:38 pm
Literally does not answer the question.
@QveenRexxx
October 14, 2026 at 2:57 pm
My friend literally did this last week. He knew he shouldn’t have and still did it. It was hard to feel sorry for him.
@RaabiaK2
October 14, 2026 at 9:53 pm
I almost made this mistake once. 😭😭
@MelissaBlue
October 15, 2026 at 9:18 am
Happened with a group that used a lot of rental vans. This was in the UK so people weren’t familiar with the vehicles. Diesel into petrol tank and petrol into diesel tank happened fairly frequently.
@machism.a
October 15, 2026 at 12:26 pm
what if I put diesel in my electric car?
@Yetaxa
October 15, 2026 at 12:30 pm
He didn’t actually explain anything. Just said it was bad. Which we all know. I imagine they wanted to know what is actually going on and why it causes all these problems
@Andy_EYEKON
October 15, 2026 at 1:27 pm
He didn’t explain what happens, yes, but explained what to do. Most people just need to know what to do if they make the mistake not the chemical and mechenical componts that make the mistake, well, a mistake
@barronlucas8054
October 15, 2026 at 3:30 pm
New Cousins story just dropped
@DocM49
October 15, 2026 at 4:18 pm
I mean, depending on when he put that diesel in there, it might be a good investment.
@bhaskarchatterjee03
October 15, 2026 at 4:33 pm
bro forgot to explain what happens internally
@baron7755
October 15, 2026 at 7:44 pm
there is a funny joke video trend where teenagers/young adults call their dad acting like they put diesel in
@cofiekelvin8955
October 16, 2026 at 12:37 pm
Gas? What gas? You mean petrol ?
@TylerWeston-s5l
October 20, 2026 at 7:28 am
As in gasoline, theres a lot of petroleum products so that one never really made sense to me. Diesel is as much petrol as gas is.
@vlademil959
October 16, 2026 at 6:11 pm
I put in 2l of gas in my diesel and filled the rest of 38l with diesel, the guy at the pump said it was ok, and actually it would help with the freezing temperatures
@jamesdelcol3701
October 16, 2026 at 6:23 pm
You are an idiot if you gas up wrong a second time. 🤣
@carolinebarley
October 16, 2026 at 10:07 pm
Fantasy husband talking here ♥️♥️♥️
@carolinebarley
October 16, 2026 at 10:08 pm
Also, I listen to my car-guy husband and would never do this. But still, what a kind way to talk to someone who made a stupid mistake.
@Raven6794
October 17, 2026 at 12:25 am
I was on an intercity bus when the driver did that. The bus did run for about 100 yards but it sounded very sick.
@seepingmoisture
October 17, 2026 at 3:23 am
no you are an idiot. you have to try to put the wrong fuel in.
@iXUZDAP
October 17, 2026 at 5:44 am
You’re really not an actual idiot until you put fuel in a tesla
@rolandkoch5178
October 17, 2026 at 1:15 pm
Another EV W
@gmcgee-l1g
October 18, 2026 at 12:25 pm
He asked what happens not what should you do, he wants to know about how the failure occurs
@Brochacho57
October 18, 2026 at 9:39 pm
YOU PUT DIESEL IN THE BRONKO?!?!?
@ChiWithZ
October 19, 2026 at 12:39 pm
Just fyi, if you did pump in petrol in a diesel car – it will obviously not start and if you do start, it could actually require new fuel injectors, because the fire points for petrol is far lower than diesel and it will eventually burn out your system if you do it multiple times. And it could absolutely result in you having to replace a lot of your intake manifold (filter, injectors, spark plug, and even fuel system)
@NexusWPT
October 19, 2026 at 3:34 pm
i drive 50km than i flash all and change all filters 3 times))
@kevinfoust8213
October 19, 2026 at 6:21 pm
Well for starters you’ll burn the valves up
@LEGASPYMAKESMUSIC
October 19, 2026 at 11:08 pm
What if you started it and drove it a bit 😂
@consuming1
October 20, 2026 at 2:36 am
no, he was right. He’s objectively an idiot.
@halthammerzeit
October 20, 2026 at 4:03 am
My ex boss once pour gasoline into diesel. Day earlier he got the new car and forgot it’s not gas anymore.
He barely drove 2 miles, just to the next gas station. 😂
@hbkpcnbob1985
October 20, 2026 at 5:12 am
Its only a major mistake once you try to start it. If you realise beforehand it just a minor inconvenience.
@alokine100
October 20, 2026 at 7:01 am
Gas station did that to my brother he didnt notice, poured gas in his disel, engine went bye bye. They even charged em for disel
@KriKri0262
October 20, 2026 at 8:39 am
Same question but not full diesel, let’s say partial before we pulled it out after finding the mistake… is it still safe to drive knowing there’s a mixture in the tank?
@AmyThePuddytat
October 20, 2026 at 9:12 am
Why does he keep saying “diessel”??
@BIueFalcon
October 20, 2026 at 9:17 am
what happens if i put jet fuel in my tractor?
@D-OveRMinD
October 20, 2026 at 9:27 am
How is this even possible to do, because the diesel nozzle is literally too big to fit into a gas vehicle hole.
@Andrei-sm3er
October 20, 2026 at 9:35 am
Next question – how do I flush it
@Phoen1xChan
October 20, 2026 at 11:21 am
Best way to get the diesel out, is by burning it. Just throw a few lit matchsticks, and it does its job. Easy!
@TheSoyest
October 20, 2026 at 5:01 pm
In other words, he doesn’t what’s actually happening; he just knows what to do if it happens 😂.
@Evil_Angelica
October 21, 2026 at 11:10 am
Aren’t pumps different sizes so that way this can’t happen? Like the diesel pumps near me will not fit in a gas engine. Is this not universal?
@MrFlyingEmo
October 21, 2026 at 11:17 am
What if I drank diesel instead of gasoline? What should I do?
@emmanymphalie2240
October 22, 2026 at 7:04 am
« You are not an idiot, you made a mistake » man you really seems to be a nice guy !
@laughingman212
October 23, 2026 at 1:15 am
You cant fit a diesel pump into a gas car the diameter of the diesel pump is bigger
@JPK1337
October 23, 2026 at 5:44 am
Nothing happens. Diesel gas pump nozzles are larger in diameter and don’t fit in a gas car.
@p3tite3bony
October 23, 2026 at 4:45 pm
wtf is the difference between the two
@VladimirBula
October 23, 2026 at 6:44 pm
In most european coutries you cant put diesel in petrol car…its impossible because the pump is too wide…luckily
@whoisj
October 23, 2026 at 7:31 pm
Gasoline in a Diesel is basically a fire bomb. Don’t do it. Don’t be the guy who makes that mistake. Those diesel VWs that were all rage 20 years ago used to terrify me at the pump ‘cause you knew some idiot was going to make that mistake, and I really didn’t want to be there when it happened.
@dodoextinct4597
October 23, 2026 at 9:03 pm
Gas as in petrol?
@suntracker844
October 24, 2026 at 5:58 am
Is that why it’s not starting 😮
@RonaldKoornneef-u6g
October 24, 2026 at 12:14 pm
I once had a ford Mondeo (standard turbo diesel). Accidentally filled the tank like 60% with 98 gasoline. I decided to just top it off with diesel, keep driving and ever other gas station add more diesel.
It had the lowest friggin consumption ever
@yurei_okami
October 24, 2026 at 12:29 pm
That’s literally why, in some/most countries, the diesel pumphandle is black while the gasoline is green or red. Here in Sweden it was red and black until unleaded came along and that was green, now they are all green since that’s all we have, and diesel is still black.
@ferrywijaya2557
October 27, 2026 at 8:36 am
Asking is already shows she’s better.
@Its_me_Wheez
October 27, 2026 at 9:27 am
I just want to put out there that diesel nozzles are made to be either 1 in or 3/4-in leaded.
So even the 3/4-in ones will not fit inside a gas car’s fill Port.
If there is all unleaded nozzle for gasoline where the diesel is supposed to be, that is the problem with the gas station itself and their crummy upkeep.
Also going to take this moment to tell everybody to not leave your nozzle unattended. Sometimes the gas nozzles can fail over time and they will fill past their fill point, causing spills.
The store is not liable for this. You are. Which means that comes with the environmental crew to come out and clean up the mess which can cost hundreds.
@MissKrisK08
October 27, 2026 at 1:53 pm
This guy is very likable 😊❤ and I don’t like a lot of people.