Never Clean Your Car’s Engine

  • Published on Apr 22, 2019
  • Engine bay detailing and cleaning. Never Clean Your Car’s Engine, DIY and car repair with Scotty Kilmer. How to clean an engine. How to wash your car's engine without damaging electronics or plastic parts. Engine cleaning explained. Why you should never pressure wash your car's engine. Why super cleaning your engine is not necessary. Car detailing. Car advice. DIY car repair with Scotty Kilmer, an auto mechanic for the last 51 years.
    ⬇️ Things used in this video:
    1. Engine Degreaser:
    2. UV Leak Dye (Don't use in AC system):
    3. UV Glasses and light:
    4. Cleaning brush:
    5. Common Sense
    Mechanic Monday Official Rules:
    1. The Mechanic Monday Giveaway will begin April 22nd at 7 am CST and run for six days, ending on April 28th at 9 am CST.
    2. There will be one winner of a few cans of engine degreaser valued at $30
    3. To enter, simply leave one non-offensive comment in the video below.
    4. Only one comment per entrant is allowed and more than one comment will not increase your odds of winning.
    5. Must be 18 years or old at the time of entering this giveaway OR have your parents’ permission.
    6. This giveaway is open worldwide.
    7. Any offensive, obscene, or lewd comments will be ineligible to win the giveaway.
    8. The odds of winning are based on how many people enter the giveaway.
    9. The winner will be chosen at random.
    10. The winner will receive a reply to their originally posted comment in the video and will also be announced in a newly posted comment by Scotty around Sunday 9 am CST. The winner will be required to respond to Scotty’s comment within 24 hours or their win will become void and a new winner will be chosen at random.
    11. The winner will be required to give Scotty their full name and mailing address to receive the prize.
    12. Entrants that use computers, programs, or any other means of cheating by adding additional comments through more than one account, will be ineligible to win the giveaway.
    13. Standard mailing time from the win date and the date received, will depend on the winner’s geographic location.
    14. This giveaway complies with all applicable federal, state, and local laws, rules, and regulations, including U.S. sanctions.
    15. Entrants that do not comply with RUclip’s Community Guidelines will be disqualified:
    16. This giveaway is in no way sponsored, administered, or associated with RUclip. Entrants are required to release RUclip from any and all liability related to this giveaway.
    17. Privacy notice: any and all personal data collected from the entrants and winner will only be used to announce the giveaway winner. The winner’s full name and address will only be used to mail the giveaway prize to the winner and nothing else. If you do not agree to these terms, then do not enter the giveaway.
    ⬇️Scotty’s Top DIY Tools:
    1. Bluetooth Scan Tool:
    2. Cheap Scan Tool:
    3. Basic Mechanic Tool Set:
    4. Professional Socket Set:
    5. Ratcheting Wrench Set:
    6. No Charging Required Car Jump Starter:
    7. Battery Pack Car Jump Starter:
    🛠Check out my Garage to see what I use every day and highly recommend:
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    This is the people's automotive channel! Learn how to fix your car and how it works. Get a chance to show off your own car on Sundays. Or show off your own car mod on Wednesdays. Tool giveaways every Monday to help you with your own car projects. Or enter your own DIY car fix to compete in the best fix of the week contest every Thursday. We have a new video every day! I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.
    Here's our weekly video schedule:
    Monday: Tool giveaway
    Tuesday: Auto repair video
    Wednesday: Viewers car mod show off
    Thursday: The Best Fix of the Week Contest AND Live podcast, car question and answer
    Friday: Auto repair video
    Saturday: Second Live podcast, car question and answer
    Sunday: Viewers car show off
    Scotty Kilmer is a participant in the Amazon Influencer Program.
  • Autos & VehiclesAutos & Vehicles

Comments • 5 559

  • Scotty Kilmer
    Scotty Kilmer  2 months ago +118

    ⬇️ Things used in this video:
    1. Engine Degreaser:
    2. UV Leak Dye (Don't use in AC system):
    3. UV Glasses and light:
    4. Cleaning brush:
    5. Common Sense

    ⬇️Scotty’s Top DIY Tools:
    1. Bluetooth Scan Tool:
    2. Cheap Scan Tool:
    3. Basic Mechanic Tool Set:
    4. Professional Socket Set:
    5. Ratcheting Wrench Set:
    6. No Charging Required Car Jump Starter:
    7. Battery Pack Car Jump Starter:

    🛠Check out the tools I use and highly recommend ►

    🔥Scotty Shirts and Merch ►

    Subscribe and hit the notification bell! ►

    Scotty on Social:
    Facebook ►
    Instagram ►
    Twitter ►

    • Michael Olyer
      Michael Olyer 6 days ago

      What's your opinion on corrosion prevention coatings on your undercarriage or under the hood or anywhere else?

    • Ricardo Corona
      Ricardo Corona 16 days ago

      I’m having trouble with a 1996 Plymouth Voyager where I have no power to the ac control unit dashboard lights and radiator fans don’t turn on

    • Malik
      Malik 18 days ago

      Scotty Kilmer a NON offensive comment

    • Tflame Gladiator
      Tflame Gladiator Month ago

      I need to clean my engine, so I can rev up my engine!😄

    • Stephen Dufresne
      Stephen Dufresne Month ago

      There was a hood up in a parking lot so I went over to see if the ol guy needed help. A WOODCHUCK! Yeah it was dead, a little burnt, smelled bad. I didn't know if I should comfort him or laugh at the situation or offer to help. He said he'd just driven a half hour with it in there. Belt squealed at first. Slammed the hood and took off. Grit, grime, woodchucks. Just leave it I guess.

  • organjohn231
    organjohn231 Day ago

    No problem to wash under the hood,
    Unless you run an old Mopar
    Just don’t be stupid and pressure wash the alternator.
    Clean engine is a happy engine.

  • ReclusiveMountainMan

    Simple Green FTW

  • Joe Axe
    Joe Axe Day ago

    your engine bay just like me sir...dusty lol.

  • falcon7935ify
    falcon7935ify 2 days ago

    Can't see threw the plastic reservoirs, what's your suggestions!

  • Ray Be kind to others, it goes a long way

    Oh no, I have to keep my car completely clean, I gotta keep that eye candy effect. Plus cleaning my car is like a hobby, therapy. 🤪

    TOTOUCH11 3 days ago

    This guy obviously doesn’t know how to clean an engine bay without covering up electrical parts. Cleaning your engines bay Professionally is very important to keep a vehicle from corrosion.

    • Wellington James
      Wellington James 2 days ago

      TOTOUCH11 for anyone that know what they are doing, it is fine to clean their car engine. Scotty video is more to amateur user or driver imo.

  • Tikboy Tikas
    Tikboy Tikas 4 days ago +1

    You are right sir scotty... just washed my AE101 4AFE engine .. it ran afterwards but the next day it just cranks but will not run.. 😥

  • Eric Johnson
    Eric Johnson 5 days ago

    If you have a crappy car like that who would want to clean the engine. If you have a nice car WASH your engine, otherwise you look like a slob. Vehicle's ten years or newer are safe to wash. Just don't use high power sprays.

  • Donald Wood
    Donald Wood 5 days ago

    Hey Scotty , awsome and very informative videos, keep em coming.

  • Donald Wood
    Donald Wood 5 days ago

    Your Awsome, very informative videos. Keep em coming. Heck never know maybe get to meet in person someday.

  • Good Samaritan
    Good Samaritan 5 days ago

    Great scotty from Pakistan

  • 26humor26
    26humor26 5 days ago

    I’ve pressured wash my 2003 Avalon since 2003 and never had an issue!

  • Kince Town
    Kince Town 5 days ago

    I want one

  • Stephen Parr
    Stephen Parr 5 days ago

    Lol Scotty thats one of the dirtiest engine bays Ive ever seen! Anything live in there? Squirrels etc?

  • Joshua Shorey
    Joshua Shorey 6 days ago

    nothing wrong with cleaning it, just as long as you do it properly and are careful.

  • J v
    J v 6 days ago

    that -ve battery terminal at 3:53......aaaaarrrggghhhhhhh..!!! very good tips ...

  • taco meat
    taco meat 6 days ago

    I need some engine degreaser

  • Jake O0O0
    Jake O0O0 6 days ago

    Can I clean the engine in my tesla or does this same rule apply

  • Crabby Hayes
    Crabby Hayes 6 days ago

    Thanks Scotty. I wince watching video detailers tell me to spray down the engine. I once spent thousands replacing a wiring harness that was ruined due to an oil leak, so any liquid under the hood scares me.

  • thetommantom
    thetommantom 6 days ago

    I like to wipe it with a dry rag. Just smear polish that crap all over like an oil protective coating.

  • Delvis Ravenel
    Delvis Ravenel 6 days ago


  • HikikomoriDev
    HikikomoriDev 7 days ago

    So I guess it's an issue when a shitton of water just continuously splashes from underneath

  • Peter Petersen
    Peter Petersen 7 days ago

    Good job

  • Nelson Scattabingus
    Nelson Scattabingus 7 days ago +2

    This guy! Lol
    It’s like saying I don’t wipe after pooping because I will shower at some point.

  • Michael Trivisonno
    Michael Trivisonno 8 days ago +2

    Transfer all that dirt into your engine when you yahoos work on it. This guy sucks.

  • Adrian Caro
    Adrian Caro 8 days ago

    All right Scotty

  • Edil Bertini Baro
    Edil Bertini Baro 9 days ago

    Oil causes electric short? I dont think so.... Oil Is dielectric

  • Duke of Hazard
    Duke of Hazard 9 days ago +4

    I've been cleaning my engine forever without any I am stupid?

  • CrimsonSkyz
    CrimsonSkyz 9 days ago

    I love how everyone is raging and being ADHD cock bags that cant watch a full video.
    If you literally watch to the end he describes how to wash it down.
    He just gives his opinion first.

  • MeMe Devereaux
    MeMe Devereaux 10 days ago

    Thanks of this video. I've had people tell me that I need to clean my engine on my 2011 Jeep Grand Cherokee. My first mind was telling me don't do it because it has alot of electrical components. Watching this video just confirmed my decision on NOT to clean it.

  • Greg Cressey
    Greg Cressey 10 days ago

    Talking bull a clean engine is a cooler engine and also u can see if there is an engine leak I. E oil or anything bag up and vasaline the electrical connections

  • vatossan
    vatossan 10 days ago

    thanks Scotty, you're the best

  • Donald Cecil
    Donald Cecil 10 days ago

    Thank you again for this great information. I was going to clean my engine for the first time ever. Ain't gonna happen now. THANKS

  • Mike Stephenson
    Mike Stephenson 11 days ago

    This guy knows his stuff, thanks a lot Scotty

  • TIM Cheou
    TIM Cheou 12 days ago +1

    I now hand wipe and use the engine pay spray and be very delicate. My mate high pressured cleaned my engine before... many things went wrong since then, especially BMW.....

  • ebox008
    ebox008 12 days ago +1

    Lest clean your engines! But only if you want to destroy Them!!!!!!... 😉

  • Mark B
    Mark B 13 days ago

    You should write a book Scotty's guide to automotive common sense!... LOL!

  • kidk007
    kidk007 13 days ago

    Never shower because you don’t need it....just degrease the required areas with Scotty’s recommended degreaser like he does.

  • TheLordstrider
    TheLordstrider 13 days ago

    So why do I see all the car lovers with a shiny clean engine bay?... Cleaner than my room.

  • Riddick tonn
    Riddick tonn 14 days ago +1

    You can wash it or you wouldn’t be able to drive it when it’s raining. You just can’t get close to the engine with the spray nozzle.

    • J M
      J M 12 days ago

      Riddick tonn so do you drive with your hood off?

  • Colby
    Colby 14 days ago +7

    Watch chrisfixes video on how to clean an engine bay and see how it turned out

  • Colby
    Colby 14 days ago

    Ever heard of making something looking good?

  • Marc Turk
    Marc Turk 14 days ago

    Good God don't clean it it'll leak oil

  • Eric R
    Eric R 14 days ago

    Dont use degreaser on rubber hoses or they will discolor ugly

  • Robert Robinson
    Robert Robinson 15 days ago

    I'm confused scotty. Water is non conductive how can it short it out.

  • Dee Warrener
    Dee Warrener 15 days ago

    Thanks for advice; I nearly blew it! only went so far as to wipe a few things and armoral plastic/rubber bits but not loads of water yet on my 'new' 2006 Toyota 4Runner V8 engine. Now I know better. I'll be getting some degreaser and follow your instructions, thank you Mr. Kilmer. Enjoying lots of your vids and looking forward to the rest. Dee in B.C.

  • teddd2009
    teddd2009 16 days ago

    Can I buy your Celica? Please tell me what you want for it... Thanks!

  • Buddy Buddy
    Buddy Buddy 16 days ago

    Super fan here

  • cHubby Love1
    cHubby Love1 16 days ago

    Lol 2:15

  • Edwin Flores
    Edwin Flores 17 days ago +1

    f**k off , I like my WHOLE car clean

  • Cristobal Tirado
    Cristobal Tirado 18 days ago

    Like Scotty said an I agree with him modern engine's aren't supposed to be cleaned with water!!!. There are a lot of electronic components and sensors in the engine compartment. Some cars have the ECM inside the engine compartment. The ECM is supposed to be completely sealed but why take a risk like that? I always clean my car engine with engine foam and pressured air nothing else and I haven't had any problems and the engine is all clean.

  • Bob Bowie
    Bob Bowie 19 days ago +5

    I apply the same *never-clean* principle to the *shitter* at my house.

  • andhen12
    andhen12 20 days ago +4

    I searched for engine cleaning. Got hundreds of videos on how to clean it. And then this shows up in the middle. lol

  • J. M.
    J. M. 21 day ago +3

    Picnic in your engine compartment. Scotty I thought maybe your memes pretty good. Maybe the Democratic party might hire you as a consultant so they could get some really good memes but they're a little bit upset when they see a green frog.

  • DeadSynth z
    DeadSynth z 22 days ago +1

    This dude doesnt know anything i detail from old to new 2019 cars trucks suvs anything and never had any problems! If you fixed your friends car by buying a new computer.... Then that means your a typical mechanic.... Fix things that doesnt need fixing...

  • Versa Suul
    Versa Suul 22 days ago

    Spanish🙏 please Mr. Scotty

    • Trent
      Trent 18 days ago

      Spanish subtitles

  • ill neumatik
    ill neumatik 22 days ago

    Don't be the guy I learned it on the internet get more experience then decide for yourself

  • ill neumatik
    ill neumatik 22 days ago

    I'm sorry but he's wrong I work on diesel tractors buses all types engines the first thing I do is clean the engine if it's a under the hood problem if u don't clean your engine an anything that has bolts it's gonna be really tough to work because of crap that builds up if the car doesn't start usually over sprayed electrical components it will dry an an start dont let crap build on your enginer only leads to more problems I'm sorry but this info is totally wrong

  • Chip Hood
    Chip Hood 23 days ago +1

    Clean engine is easier to find leaks and future failures

  • Alan Rahim
    Alan Rahim 24 days ago

    Thanks Scotty good advice.

  • ash kyle
    ash kyle 24 days ago +1

    He's absolutely right, metal WILL crack.

    • Colby
      Colby 14 days ago

      ash kyle if its hot and you put cold water on it

  • Matt Collins
    Matt Collins 24 days ago

    I clean my engines to make it easier/cleaner to work on.

  • Aiden Bodycoat
    Aiden Bodycoat 25 days ago

    At first, I was like."oh no I'm hurting my car" then Scotty said buuut if your engine is oily pheww

  • Brent Carson
    Brent Carson 25 days ago +1

    Hasn't cleaned his Celica in 20 years...or his garage, lol.

  • Fanboy Killa
    Fanboy Killa 25 days ago +1

    Rev up your dirty engines!

  • Fox-E (Bonzai)
    Fox-E (Bonzai) 25 days ago

    Ive power washed my engine in my H2 and my truck, with no problems, just wait for it to dry before starting the engine.

  • fanis chantzos
    fanis chantzos 26 days ago

    Very nice video Scotty and I would like to win the engine degreaser...

  • CryptoConservativeJason

    Whatever dude lol.

  • Go big or go home Productions

    I disagree done this a million times a clear engine is a good engine. Lol how do you hydro lock while cleaning lol????! Must of used a fire fighter hose for hours...