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Should You Warm Up Your Car's Engine Before Driving? Myth Busted

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Warm up engine myth busted with Scotty Kilmer. Should you warm up your car's engine before driving? Warming up your car in the winter myth busted DIY. There are many myths about warming up an engine, and I'll tell you the truth about the matter. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years. ⬇️Things I used in this video: 1. Common Sense 2. 4k Camera: http://amzn.to/2hZ4AxX 3. Mini Microphone: http://amzn.to/2newgV9 4. My computer for editing / uploading: http://amzn.to/2i2sKYz 5. Video editing software: http://amzn.to/2jv5Fhf 6. Thumbnail software: http://amzn.to/2k7tz6C 🛠Check out my Garage to see what I use every day and highly recommend: https://www.amazon.com/shop/scottykilmer ❗️Check out the Scotty store: https://goo.gl/RwhRGU 👉Follow me on Instagram for the latest news, funnies, and exclusive info / pics: https://goo.gl/ohy2cA If you liked this video, consider subscribing and press the bell Icon to get updated on the newest videos every week. And remember, every TUESDAY and FRIDAY I upload a new video on the Scotty Kilmer Channel on YouTube, https://www.youtube.com/user/scottykilmer Also, if you like my car help, be sure to watch my live car talk show, every Thursday afternoon at 1 CST and Saturday morning at 10 AM CST on YouTube. I answer your car questions LIVE there. Just check it out at: https://www.youtube.com/watch?v=yQtdBelbqdg
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Текстовые комментарии (4760)
Scotty Kilmer (3 месяца назад)
⬇️Things I used in this video: 1. Common Sense 2. 4k Camera: http://amzn.to/2hZ4AxX 3. Mini Microphone: http://amzn.to/2newgV9 4. My computer for editing / uploading: http://amzn.to/2i2sKYz 5. Video editing software: http://amzn.to/2jv5Fhf 6. Thumbnail software: http://amzn.to/2k7tz6C 🛠Check out my Garage to see what I use every day and highly recommend: https://www.amazon.com/shop/scottykilmer Consider subscribing and press the bell 🛎 icon to be notified of all new videos. 👉Follow me on Instagram for the latest news, funnies, and exclusive info / pics: https://goo.gl/ohy2cA
Yc 530 (15 дней назад)
Scotty Kilmer What year would you consider a modern car?
The Truth (18 дней назад)
Roc if you live somewhere cold.. yes u should
Roc (18 дней назад)
I used to not warm up my Kia Sportage 2013 except for 1 min to let the engine rev down. Then after two years of ownership the engine died, cost me over $5000 to replace the engine. Always warm up your car, because when you have problems than these people giving you advice with not pay to repair it, you will.
The Truth (1 месяц назад)
ONE MILLION VIEWS! congrats scotty
Ruwais Al Ruwais (2 месяца назад)
Scotty Kilmer would you sell the bike
Tartan Woods Chr (8 часов назад)
Start it up cold, and put it to work. Yep, that is not going to work. I seem to recall a whole bunch of time in a ground school class on proper warmup, and how easy it was to smoke a cylinder if the engine wasn't up to temp before putting it to work. Forged pistons start expanding way faster than the iron jugs, rings crack from the sudden loading when they are lose. In general, clearances are at extremes, journals are loose, and it is all-sorts of terrible for a turbocharger. Pressures on exhaust gaskets are high while the compression on gaskets is low from the cold parts... makes it easier to destroy them. Some people's grenades have pins in them, Scottys has a set of keys.
04cobra1313 (8 часов назад)
Don't care what he says,oil needs to be sent up.top before driving. All the oil is in the pan when you start it cold so that means there is no oil on the cylinder wall when u start it..
CoyoteFeral (11 часов назад)
I can tell you right now if I didn’t let my 08 323i warm up, it’d be ruined in 20,000km max. There’s a HUGE difference between the sound and feel of the car from cold to hot. I also know someone who blew their engine from driving the piss out of it while it was cold.
James M007 (10 часов назад)
You should think about pulling this video. The owners manual for a 2016 Chevrolet Impala says let the oil warm up and so does the... too many "modern" cars to list. Or at least say don't drive hard for a few. The problem here is location. A Michigan mechanic ... no one is perfect, no one. I respect you, so do others.
toybot bato (12 часов назад)
Well if you dont warm up and you feel the unusual jerk when you shift the gear I guess thats your sign the engine doesnt like it what is 15-30 sec, I will still warm it up for 15-30sec it wont hurt to do that I guess.
Jake Garrett (1 день назад)
That's completely misleading. I've never heard this reasoning (I can make a carb engine start perfect in the winter, but that doesn't mean its good on the engine). The problem is the mixed material expanding at different rates in different locations paired with super tight tolerances (like in modern cars especially, cough cough), its not air fuel ratio that's the problem.... You want to see a painstakingly obvious example? Rotary engines... They have a hot spot, and the rest of the engine is cold, so they get visible wear. After thousands of those showing the same trend, are we really going to debate that the temperature/expansion of metals is not important?
Kkk Lll (1 день назад)
Hey, i always heard that you should wait 15-30 seconds before pulling off. is that true? btw, my car uses 5w30
Arkangel (1 день назад)
nice scotty good info.
Eric M (1 день назад)
so i was told the reason for warming the engine was so that the pistons/rings could expand and create the proper operating temp seal... :(
Jake Garrett (1 день назад)
Those people would be correct.
Josh Dekalb (1 день назад)
2000 Celica....
Froggylover 60 (1 день назад)
I do t know how I came across your channel recently but I am so glad I did. You are so informative. I took your advice on cleaning the air intake for more efficient air conditioning and WOW what a difference. Now I check in with you every day. Thank you.
stayridenchevyz (2 дня назад)
Gabriel Bray (2 дня назад)
I don’t care what the temperature is. I will always let any engine, brand new or not, light or thick oil, carbureted or injected, warm up for a few minutes. Gives me a piece of mind I guess.
TheNew Brazy999 (2 дня назад)
Would i get higher fuel efficiency if i used marijuana oil instead of regular oil?
Axel Mora (3 дня назад)
Tranny doesn’t like the cold tho, usually idle for like 3 minutes
Abraham Soto (3 дня назад)
If you want to have a Smoke Machine just rev up the car as fast as you turn it on.
Adalia Francisco (3 дня назад)
alex neil (3 дня назад)
thanks scotty always love your video's.
SuperKanuuna (4 дня назад)
Scotty, wash engine bay from your Celica immediately :D
jesse padron (5 дней назад)
What if you have a newer turbo charged car?
Jake Garrett (1 день назад)
He was wrong to begin with. Its the expansion if mixed metals changing size at a different rate that is the problem. Your turbo makes no difference.
Mark R (5 дней назад)
So what you're saying is if I have a 2018 vehicle, that I can start it up, buckle up, and immediately test how long it takes to get from 0-120mph before it has time to warm up?
az21bob666 (5 дней назад)
change the heater core in my 2002 jeep, we also change the blender doors and the evac, and it still no that hot, I afaid that the new heater core is bad, anyway to tell, or tips. ps we empty the freeon, and did not put some in yet, want to make sure everything was good, could having no freeon keep the heat form getting hot.
MGYouTube Account (5 дней назад)
Modern car engines don't need to be warmed up. Of course, you should always take it easy and avoid hard acceleration until the engine comes up to temp, but there's no need to let it idle for several minutes even in the dead of winter. I live in northern Canada where the temperature is often in the -20 to -40 degrees celsius during the winter. My car is parked outside. It's a 2006 model and I always start it and drive away after a few seconds. So far I have had ZERO engine problems. Starts and runs as good as the day it was new. Doesn't burn any oil and fuel mileage has not worsened.
PorkChop Chris (5 дней назад)
Could you speak a little louder next video?
Holly Roden (5 дней назад)
Made me giggle
Alan Legg (6 дней назад)
To all you shouting bull shit, why has my BMW got electronic rad blind, its to get it to temp asap and its not just for economy
David Paine (6 дней назад)
Scotty, I have a 94 dakota 3.9 with fuel injection, when I start cold the RPM's run at 1200 to 1500, I have to let it warm up to idle down to 800 RPM's what needs to be replaced to allow 800 RPM's at cold startups? been trying to find this answer for YEARS, help me out AIRBORNE...
Jake Garrett (1 день назад)
Don't worry about it, unless you want to spend maybe $10k on an advanced system, but its not hurting your engine. However do let it warm up, its the expansion of mixed metals at varying temps that is the problem. You can look at Wankel rotary engines if you want to see what happens when one part of the engine is cold and the other is hot. You probably don't have to let it get fully warmed up to drive it though, just let it warm up a minute (or a few if its icy out), and then take it slow until its up to temp.
Conner Hoffman (6 дней назад)
Don't do drugs, kids.
Tomasz Kiraga (6 дней назад)
D- Gadgets (6 дней назад)
I usuali start my car and wait around 1 minute before I go. It's a habit maybe, but in the winter in Bulgaria the temperature gets below - 20 even - 30 Celsius.!
Bi Turbo (6 дней назад)
The engine is fine but what about the gearbox
SunzOffski (7 дней назад)
Car will warm up quicker under light load than sitting idling.
Jonathan Chen (7 дней назад)
I mean, you wouldn't wake up one day and start running
Jake Garrett (1 день назад)
I used to. Every day before class... Hit the snooze button to many times, look over, 8 minutes until class. Throw on some clothes and sprint down the stairs, hop on my bike and pedal like mad, park and whammo, 3 minutes early. The way I saw it, I could sleep in another 3 minutes! But my body is not made of multiple different expanding metals changing size differently as it warms up at over 1000 rpm, so its probably fine for me.
Cranjis McBasketball (7 дней назад)
Great fast to the point! Live your Vids!
Itz Supreme (7 дней назад)
This guy gives me headaches with the dumb shit he says
Thumbs Up (7 дней назад)
Talk about being obnoxious
Killabee-23 (8 дней назад)
This is the first one of his videos o disagree with. You should always let you engine and transmission heat up a little bit before driving. Especially if you've got a heavy foot like me.
Charles Gtm (8 дней назад)
20 to 30 second warm up after starting is good enough for me, plenty of time to wear your seatbelt, set up your music, ac, etc and off you go, just take it easy until it reaches operating temperature and you re good
Seth Bolin (8 дней назад)
Ya but what about a v8 ??
Mike Le (8 дней назад)
Most imports have a cold water light so you wrong
King Of Time (8 дней назад)
What about in Canadia where we have -40C temps and motor oil turns into thick honey? Do I full throttle it on the freeway without letting it warm up? I can tell you that every work truck I see in Canada is bagged to shit when cold and they all have valvetrain issues.
Sroor9001 (8 дней назад)
Only start car fix the seat belt and time to go on my e39 and drive and on Altima 2006 just start and drive about 7 years on Altima and 6 years or more on bmw and no issue
Sroor9001 (8 дней назад)
Only 30 seconds is enough I've seen a doctor heating car for 30 minute land cruiser gxr every time before leaving work also a driver for delivery he is heating car for at least 20 minutes😲😲😲 that's crazy 30 seconds and with lots of traffic jam it'll reach operating temp while you are on the traffic jam so don't be a victim of those who said you'll scored this and that if you are living in hot weather actually
NeBoFoRiOn (8 дней назад)
my 2016 ford f150 reves high for about 7 minutes before it idles down i let it idle down bwfore i go they all do the f150 your vids are awsome good stuff man
Devin Smith (9 дней назад)
I let it warm up just so I don't have to drive in a cold car... nothing mechanical about it.
Rodrigo Marenco (9 дней назад)
Scotty: the type of guy to tell you to rev up your engine and also don't rev up your engine
Justin Sward (9 дней назад)
I still think it's a good idea to give your engine 30 secs to a min before driving it
Mruca (9 дней назад)
In mn it gets -30 to -50 below in the winter oil dosent like it at all trust me
stone tooth (9 дней назад)
Go ahead and jump in and haul ass when its cold. See how long it takes for your ride to start smoking a little. Or just ask my neighbor how his 2016 Toyota runs.
Kevin Shaw (9 дней назад)
This is bullshit. You do not want to start your car up ice cold and go. Cold starts are actually bad for the motor but they can't be avoided. There's going to be mornings where it's 12 degrees out and no you can't avoid starting the car. But you can avoid taking off while the engine is still ice cold. You can avoid taking off while the oil is still thick and barely moving through the motor. This guy is an idiot. Even in the summer you should still give 30 seconds for oil to move throughout the motor.
amasoftyou (9 дней назад)
Warm up ur engine not only for af ratio but also to reach optimum engine oil temp and this is important when ur engine climbs higher rpm. Start ur car 2 3 minutes then slowly cruise below 2k rpm till it reach opt temp at least. Dont ramp up ur engine in cold its bad
OceanBlueLady/ Jacki (10 дней назад)
I watched a couple of you video's, now I'm a subscriber! Thanks for the tips and fixes!
Liam Weaver (10 дней назад)
My car runs 10w40 and I live where it's cold as santas asshole so I warm it up. My other car is a turbo charged diesel so I let it warm up so it flows well to the turbo.
David Somers (10 дней назад)
One thing I have found on older (EFI based) vehicles such as my 91 Ford; is that it shifts much smoother after getting ten/fifteen minuets of time to warm up. This also being an opinion formed when operating at below freezing temps. Above freezing doesn't seem to make much of a difference when handling an old clutch.
SuperAleRC (10 дней назад)
Dumbest piece of advice I’ve heard in the history of advises... smh
henry wallace (10 дней назад)
What cause my 2010 Jeep Patriot transmission to be overeating
Jake Clark (11 дней назад)
So you're saying unless it's an old car without EFI, it doesn't need warmed up? Surely you don't mean that, with the experience you claim to have. If you have a turbo car, especially a performance turbo car like my 94 TT stealth, you need to let it warm up slightly before driving for the turbos...
Kyle Stewart (11 дней назад)
Scotty - or anyone else who can explain this to me, I have an 07 Infiniti M35 and every time I start my car after letting it sit for more than just 3-4 hours, the revs start at 1500 and over the course of a minute or two, the revs go down to a more normal level around 800-900. If I put it into drive without letting the engine and transmission warm up, the car does a sort of bucking motion as though it's having trouble going into reverse or drive. Is there something wrong or something I can do to improve this situation?
Williams awesome (11 дней назад)
Thank you
felix168 (12 дней назад)
A good warm up does more than just to the engine...it is to warm up the ATF.
Vitaliy Kanunnikov (12 дней назад)
Agree. Moscow, Russia 11.04.2018
Royale with cheese (12 дней назад)
First thing, never use 0W-20 oil if you don't have a recent car which specifically asks for this very fluid oil at hot. In an older engine, it will ruin the engine because older engines have wider assembly tolerances. As for the warming up, I would certainly not spool a turbo on a cold engine. But for non turbo engines, just not accelerate hard for the first minute driving and should be just fine. Don't forget, it's rather the transmission that needs a few minutes to warm a little so don't be harsh on it right away.
david rubio (12 дней назад)
Hey Scotty, I have a 2000 Monte Carlo ss that had the engine replaced last year. I usually start the car up and let it run a minute or 3 until the engine drops 200 rpm's or so. Is that a problem?
Stylo Breeze (12 дней назад)
Its always better to warm up your car before driving. Ofcourse nobody would say that because today everything is about envoirment....which is a good thing. At least warm up for 2 minutes en then go driving. Any true mechanic would recomend it. And then rev up your engines!!!!!🙄
CASKET BLACK (12 дней назад)
There is nothing wrong with letting your car warm up. Wtf?! Common Scottie . Who the hell starts up their vehicle in the morning when its cold or its been sittn for an extended period of time and just throws it in drive? Thats not good for your fuckn car! No matter how new or old it is. I dont do that nor have i ever seen anybody do that that didnt have to. You are normally right about most everything, but this stupid video is wrong.
Cameron Vranek (13 дней назад)
Nice vette
De Lilah (13 дней назад)
I have to show your video to everyone around me that thinks that they HAVE let the car run before driving off 😂
loving life (13 дней назад)
There is one thing that effects the diesel car gearbox before warming up and driving, which is harder to change it
Evo8M~R (13 дней назад)
Would a 06 Hyundai be considered a modern car?
Nart Wumar (13 дней назад)
There is also an argument about expanding and contracting metal due to temperature and that they need to reach equilibrium before driving. Is that true or just a load of garbage ?
lifegivesmeheadaches (13 дней назад)
Finally, found the answer!
MrRoadRage (14 дней назад)
it breaks my heart to see people put the key in and start a kay straight away I like to turn the key and let the things settle and then start it mainly because I had a tdi for so long
Alias Xi (14 дней назад)
Do i need to warm up a 97 z3
flyboynextdoor (14 дней назад)
I do live where it’s -50 a lot of the time, so I warm my engines well when it’s that cold. Love the channel Scotty!
dneitzke (14 дней назад)
Ok Mr. Scotty, you seem like a intelligent man that just wants to extend your knowledge base to the mis-led public, From looking at your lic plates, it appears you live in a year long warm climate. i live several hundred miles North of you, not so warm here in January. regardless ,despite the way fuel enters an internal combustion engine, you MUST consider that all the engine and Transmission parts are of high tolerances, You should ALWAYS warm up an engine and have nice warm oil flowing around those components before you put a load on it. your car will last much longer because you are confirming thermal balance at the price of a little fuel. I've seen it too many times, example: neighbor lady gets in her car in the morning ,it's 12 degrees outside, she turns the key and goes. A month later she has antifreeze in her oil because the head gasket has been compromised, because those pistons put out some serious force and Mr. head gasket hasn't had time to expand so it can do its job. and i'm not yet even considering the highly excessive stress it puts on the engines crankshaft bearings. YOU ALWAYS FULLY WARM AN ENGINE AT IDLE BEFORE YOU PUT A LOAD ON IT. DON'T ARGUE WITH THE LAWS OF THE UNIVERSE, YOU WILL LOSE THAT BATTLE EVERY TIME
James J (14 дней назад)
Rev up my engine? No. Makes neighbours mad, car too loud.
Ace Asmara (15 дней назад)
I like the way this old man explaining things. So cool :D
lam chau (15 дней назад)
In couple videos you keep flipping with your middle finger
Ach Cru (15 дней назад)
I still warm up my car I don't care how new it is lol.
David Lyons (15 дней назад)
I live in an apartment 4 plex, and my neighbor warms up her car sitting in the garage, I hope she watches this...
Danny dany (16 дней назад)
i never driving my car before i warm up
William Evans (16 дней назад)
-40 here in ND. Bet your britches i let my Hemi warm up in the morning
roy rodgers (16 дней назад)
2004 chev truck with 10w30 oil warm up or not?
J Borcz (16 дней назад)
All good info, and well explained as it was also on EE’s channel. But neither adequately addressed truest cold tempatures. Ones in Houston the other is in California. Northern Michigan, New York, North Dakota, Montana, and most of Canada know that even modern snowmobiles will seize up if there risen before being adequately warmed up. As for me and my car if it’s well below freezing it gets warmed up. Even modern day cars with thinner oil. Take that 0-40 out in minus 20 and it’s sludge.
Alex M (16 дней назад)
You know,my car never even needs to idle higher than 2k RPM,i can accelerate from 0 to 60 with just 2k rpm.
The Wondering Angler (16 дней назад)
Yea warm it up.
Robert Mitchum (16 дней назад)
What about the high idle at initial startup? Banging your automatic tranny into gear at a higher idle is not my idea of good for your car. My car is only two years old, and it goes into a high idle at startup. True it only idles high for a minute or so, but I’m not taking any chances with the drivetrain until that idle drops.
Jonah Eby (16 дней назад)
It kills me watching the guys at work let their cars warm up for 20 mins while they get a shower after work. Then they drive 5 mins home.. haha. Give it 30 seconds or a minute while you knock the snow off and then get going. You'll warm up much quicker driving down the road.
Riot0Gamer (16 дней назад)
But Scotty, metal expands when it heats up. for example the pistons diameter ever so slightly increases when the engine is on its operating temperature. I hope you get my point, but if Im wrong then feel free to correct me!
Tjukken (13 дней назад)
Just don't high rev engine before it have normal temp. Normal low rpm driving does not stress engine more than idl.. (Unless you have a shitty engine) And when driving the engine heats up within 5-8 minutes in -25°C -to -35°C anywhy under -40°C it can take 10 minutes.. (unless you have some shitty engine)
Crushi.com (16 дней назад)
this man is teaching you science and reality. listen.
flamin cheeto (16 дней назад)
Where does he get all of these cars??
Shinjitago (17 дней назад)
Missed out on the more common turbo-type or even supercharger type. 130 degrees right to boost is not a good thing. I.e. Eco boost, common vehicles with turbos these days.
zeroangelmk1 (17 дней назад)
I live in a part of Canada where winter temps dip into the negatives on a usual basis. Does this advice still apply?
4rolando (17 дней назад)
If your car is turbo charged don’t listen to this guy the oil has to warm up so it can run smooth through all the lines
Jovani Rodrguez (17 дней назад)
Did i hear you say you live in houston?
Bill Bright (17 дней назад)
Beam me up Scotty!
Ryan Adam (17 дней назад)
Still gonna do it
1066gaz (17 дней назад)
When you first get up in the morning would you immediately sprint flat out down the street? No exactly you would eventually damage your health doing this regular. What do footballers do before they play football? Exactly warm up or they will cause damage to themselves. All moving parts includng ourselves have to be warmed up. I would not dream of thrashing a car especially a turbo engined car from cold would you? Also a V-Tec system has been designed so it will not fully operate until the oil temperature has reached a certain temperature. So the answer to scotty's question is YES.
David Valdés (17 дней назад)
Hi Scotty, what could happens if I only start my car once a week? Thank you very much for your videos

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