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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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Scotty Kilmer (9 месяцев 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
Jason Gould (1 день назад)
Scotty Kilmer common sense isnt too common :) love Scotty’s vids
jeff Craven (1 день назад)
Scotty, Thanks! When I bought my 1st fuel injected car, and up to now, I've always warmed up my cars, mainly to get the oil flowing & for them to drop into slow idle. I thought the car dealer mechanics & salesmen told me I didn't have to warm up the car so I'd wear out the engine and I'd be back for repairs or a replacement engine. Again, thanks, Jeff
Alfredo Ruvalcaba (7 дней назад)
Scotty Kilmer you are the man Scotty
Drew T (1 месяц назад)
Where can I find number 1? Online?
Springwood Slasher (2 месяца назад)
Scotty Kilmer you are completely wrong again!!!! Im flagging this channel for misinformation. You have to stop with this bullshit!!!!! For people who live in the midwest you have to warm up your car not so the oil will flow but to get the oil up to temperature . Oil needs to come to the its proper operating temperature to work correctly it takes 2 to 5 min to warm up your oil before its protects correctly depending on how cold it is.
Eli S (2 минуты назад)
Dang Scotty, you're getting some real hate from some YouTube armchair mechanics for this one!
scary terry (1 час назад)
Ya i live where we get 40f below with windchill....ill let it warm up anyway lol
Sorcerer Harmon (2 часа назад)
This video took a long time to make.
Gran Magnate (8 часов назад)
Or Maybe the newer car sounds quiter because its new 💁💁lets wait til its 27 years old and see if its as quiet
Scione S (11 часов назад)
I don’t warm up my engine. I start my car, shift to drive, and go. Change oil every 10,000 miles. Then trade my car in when it hits 200k. Rinse and repeat. No problem whatsoever, unless I get into an accident.
Mike Wasylik (13 часов назад)
Would you get out of bed and start running or sprinting? Same goes for engine oil. Let it warm up and flow before you drive. The colder it is the longer. Even up to 5 mins. Dont listen to what these you tube "experts" say... just listen to me..
Ulquiorra Castle (14 часов назад)
I'm batman and I don't have time to warm up the batmobile.
Henry Herrera (14 часов назад)
Wait, scotty kilmer is in houston?
Allan Smith (16 часов назад)
I never "warm up" the engine, but then again I don't do 100 kmh straight off the bat. I makes no difference to an engine if the engine is warmed up with the vehicle stationary or with the vehicle moving if you take it easy for a couple of minutes, in my case it takes me that long to get to a major street. It's called common sense ok guys? This thing about leaving a car idling for 10 minutes if the car is in fact "driveable" cold is just a ritual. I have been doing this for years without any damage to my engine - runs like a baby and does not burn a drop of oil between oil changes. The only times I used to warm up engines was back in the days of carburetors when I had to as otherwise the engine would stall if I tried to take off. On another note, my dad used to be an engineer at the local Caterpillar service center here in Melbourne and the way they used to test rebuilt engines was to fire them up COLD and then go to FULL throttle instantly and let them run for quite some time on the dyno, they did that to all engines, even ones as big as houses. I'm sure this will send shivers down the spines of quite a few people here but hey, its not as if these people didn't know what they were doing ok? But I'm sure someone will say that they know better. There is a lot of BS in life don't believe everything you are told or do as others do just for the sake of it. Use your own brain.
Thomas Gadsby (16 часов назад)
I have carburated..have to warm it up..it goes away for the winter...i warm up the suv in the winter..so i have heat and can see out the windows..love them heated seats
Freddie Rex Tagacay (19 часов назад)
I start my engine for 2-3 hours idling and some blowtorch works fine i need it to fully hot so that my engine last longer
Captain Awesome (21 час назад)
I let mine warm up for at least 2-3 mins regardless if its +40C or -40C, which is the temps where I live. Been doing it for years and never had problems. My car doesn’t have a block heater either!
Coads 1 (1 день назад)
I live in a Northern U.S. state. When it is really cold out I like to give my car at least a minute or so before I start driving (modern day fuel injection). And obviously if you have ice and snow as mentioned in this video since the defrost works off of engine temperature (heater core). Each to their own I just feel like my car operates better with at least a little give time.
Coads 1 (1 день назад)
I live in a Northern U.S. state. When it is really cold out I like to give my car at least a minute or so before I start driving (modern day fuel injection). And obviously if you have ice and snow as mentioned in this video since the defrost works off of engine temperature. Each to their own I just feel like my car operates better with at least a little give time.
(1 день назад)
So all what I need is a good quality oil
Mark Coupland (1 день назад)
Warm engines run better
Green Crocidile (1 день назад)
What would be consider modern year wise
J.T. Cooper (1 день назад)
Nothing wrong with giving it a minute or so when it's cold in my book.
griffin pierce (1 день назад)
15w-40 in a brand new diesel doesnt flow when its 5 degrees ou
Mr 4twenty (1 день назад)
I turn the key shift into drive and I’m off before my radio can turn on lol
chester doodlevich (1 день назад)
Very disheartening. Just started to have faith in Scotty. As I'm a new viewer. But this has me really questioning his "expert opinion".
Little Johnny CNC (1 день назад)
😳🙄🙄🙄🙄🙄🙄🙄..... I hope he is just trolling...
Von Musklaus (1 день назад)
I had a 1956 International truck in the late 70's when I was teenager. It had a manual choke. Thinking back now , I kinda miss those simpler times.
Chuck Thomas (1 день назад)
Come to my place in the middle of winter with your car and if you can start it go ahead and drive all you want. However at -50 (50 below zero) I let thing warm up a long while. Even with though the block heater has been going all night.
Devrim Ekici (1 день назад)
I think hes yelling
dj b (1 день назад)
Warm up your engines!!!
mrgeorgeburdell (1 день назад)
What about the changing clearances as the metal engine parts warms up? The metal cylinder walls, pistons, rings, bearings, etc. expand as they warm, so their gaps and clearances change as the engine warms up. I assume engines are designed for optimal gaps and clearances when the engine is at a steady operating temperature, so long term, engines would be more prone to wear when strained while still cold and these gaps are not at their optimal sizes.
Panayiotis Toumazou (1 день назад)
Yes because if you don't it shuts automatically when you start
troymassey90 (1 день назад)
The owners manual of my 2012 Mazda 3 S says to not shift the transmission u til the car warms up or you can damage the transmission.
The Liberator (1 день назад)
Prime example of why i dont listen to "youtube mechanics"....
Ron Van Pelt (1 день назад)
as a general rule of thumb l go with 2 min warm up unless its very cold where l live in Canada then maybe up to 5 mins and absolutely wait till the revs drop down to 1000 rpm or less before l move. Then l drive it easy for at least 2 - 3 mins then she's good to go. l generally run 10-30w but for winter switch to 5W-30W, change filters every change and REFUSE to ever let a Fram oil filter near my vehicles. Almost wrecked my 03 Hemi with one that almost immediately broke down in use and was getting wicked temperature spikes where it was almost pegging the temp gauge intermittently. l use only BOSH oil filters these days.
alex jervis (1 день назад)
It would seem a good idea to get the oil circulating before putting loads on bearings?
Joe Magyar (2 дня назад)
I let my car warm up in the winter, especially after my mustang blew it's engine from just getting in and taking off.
Philip Brozovic (2 дня назад)
My 2015 Durango cold starts at 1500 rpm. I think it's way too high but everyone that I have talked to and even the dealer said it's normal.
John Eder (2 дня назад)
Its moving metal. It all changed as it heats up. Best to let it run at least a few minutes when cold. Pistons expand as they heat up. It all changes some. I disagree sir. I too am from the industry.
remixjdm (2 дня назад)
thats like saying, exactly when u wake up, get up and start sprinting. kinda need to wake up a bit and stretch dont ya? but each to there own. ive owned my 1st car for 11 yrs now, i live in central canada and it can get pretty chilly here. no doubt id need to warm my car up. my manual trans would feel like theres clogs if i didnt
Steve Harding (2 дня назад)
Oh yes,winter in the old days the car just didn't run well until warmed up and they could be real hard to start haha.
A F A (2 дня назад)
I disagree with him but also see why he has made this recommendation. I have lived both in Houston and Midwest USA. Big difference. I never cared about warming up my engine when I was in Houston but always warm up the engine nowadays I live in the Midwest. The engine runs at sometimes up to 3K RPM when the weather is super cold until the car is warmed up. There is a reason for it, and there is a reason not to drive until at least the engine RPM returns to its idle position.
Mr N Brown (2 дня назад)
Lol driving antique...well said.
BzzKll2k15 (2 дня назад)
Not so much about my engine but I need my interior comfortable before driving away. Five minutes with the Defrost or AC running gets it just about perfect
MrHasie (2 дня назад)
Drive slow for a few minutes, this allows the metal to warm up evenly.
yaron algoet (2 дня назад)
I thought rev up your engines is part of the tutorial, turns out its the intro
Howard Osborn (2 дня назад)
I have a 22 year Buick. Dont i need to let it warm up? And that years to b old and or new?
Tony Rauch (2 дня назад)
A simple yes or no video would have been adequate going too far into the question
jessie (2 дня назад)
When the temperature really cold outside I tend to warm up the car for 1 minute till I drive off.
Glacier Don (2 дня назад)
Do you ever come back and admit that you were wrong?
Ryben Flynn (3 дня назад)
I give it 10 seconds or so to get the oil moving.
Prairielander (3 дня назад)
I live in Canada and sometimes it can get down to -30 or -40. We actually have block heaters for our cars where you can plug them in overnight and it can keep your engine warm.
Haldane Peters (3 дня назад)
is John Lennon still alive
BigBwoyTing (3 дня назад)
Don't listen to this guy let your vehicle get to operating temperature before you drive it.
Dag5 Dags (3 дня назад)
Ahh great vids! Your like a more lovable Alex Jones
FREAK EVO (3 дня назад)
*yells! "Okay thanks"!!!!!!!
IT'SME (3 дня назад)
Should I warm up my toaster?
Kevin Smith (3 дня назад)
I live in Winnipeg MB Canada and we get -40 in the winter at times and I let my vehicle warm up for atleast 10 minutes before I would even consider driving . At times 20 minutes to assure my fluids are actually fluids again and not tar .
Mike Hiler (3 дня назад)
I still warm up my car but I got a 1994 Lincoln Town Car
Yi-Tzai's Toy Review (3 дня назад)
Why does my new Subaru have a light (a blue cold light) indicating the engine is cold? All new and recent Subaru have that warning light when u start the engine and goes away after engine is warm?
Lex Gso (3 дня назад)
For the engine you will need about 30 seconds to start driving... But Automatic transmission takes a whole bunch more time to heat up. So make sure not to go above 2000 rpm. until you see your needle at least half way to recommended level.. Love when people help each other... Good Luck.
walter kersting (4 дня назад)
Scotty, why does a carberated engine tend to cough and sputter upon start up? And why does a richer mix solve it temporarily? Only to have to be reset later when the engine is said to be warm?
brianj123458 (4 дня назад)
I warm up my truck in the winter just for the heater to be able to jump into a warm truck lol in the summer I never warm up my truck
sam rb (4 дня назад)
Watching this in 2018 but this was posted on my bday last year
Brian McGaw (5 дней назад)
Incorrect, you should always warm up your engine even on newer vehicle, especially if equipped with a automatic, when the vehicle is cold the idle will still be higher than when it's warm, putting the vehicle in gear at a higher idle puts more stress on the ring and pinion gear in the differential. I've seen many cars get excessive play in the ring and pinion causing a clunking noise when shifted from say reverse to drive. A huge culprit of this is throwing the car in gear with a high cold idle. That being said you don't want to idle the engine too long, idling is hard on the motor, particularly the piston skirts, just warm it long enough for the idle to drop down into normal range and be on your way, usually a minute or two tops
xtrunggax (5 дней назад)
hi Scotty, I have a Toyota Camry Atara 2014. On start up the exhaust fume is very strong smell of fuel. once the engine is warm up a little the smell is a lot less. Is this normal?
funkierfawn budgie (6 дней назад)
I think 15-20 seconds should be the minimum amount of waiting time before driving to allow oil and fluids get to critical components in the engine
Eddie Reyna (6 дней назад)
Easy on the pedal until the engine gets to operating temperature
Tim DAmelio (6 дней назад)
my common sense tells me your wrong
forgewire (6 дней назад)
This man is stupid, carburetors didn’t warm themselves but the engine. Despite fuel injection is more efficient and has better sensors etc the basics of the engine is still the same. You need you engine warm up because all the gaps and tolerance of metal parts are tuned for working temperatures. Also proper oil pressure builds after couple minutes of idling. So unless you are an eco populist or green party activist then go listen this old fella and your mechanic will thank you for that.👎👎
Rory (6 дней назад)
2005 350z twin turbo... i let it warm up for 10 seconds and just cruise until its warm and then its play time...
Alarm Tech911 (6 дней назад)
I always wait a little bit before I drive just to let the engine oil flow
Aye Bee (7 дней назад)
On my ill conceived Dodge 4.7 SOHC, I do have to let the valve train idle for 1 minute 45 seconds until it quiets down. Summer winter. It is a crummy design. Folks that just throw these engines into gear immediately, lose a rocker arm. Tiny oil passages that sludge easily.
FloppyBit (7 дней назад)
what about warming up your engine so thermal expansion keeps everything sealed and tight. Gaskets, o rings, clearances. I was always a believer that an engine can be driven cold as long as you took it easy until it was warm.
naywahn (7 дней назад)
RockFinancial (7 дней назад)
Studies show that with modern oils, it's more beneficial to just drive the car cold. Engine parts wear faster during cold but here's the thing; the idling for warmup takes much longer than an engine warming up while you drive it. So you just need to take it easy on acceleration and no high rpms, and the engine will heat up faster thereby reducing the amount of time you have cold engine parts moving. It's all about the duration of cold engine parts and iding in your driveway loses vs just driving the car. Plus the heater core these days is fast. and works faster when you drive.
Flight 737-200 (8 дней назад)
With fuel injection these days? 5 minutes tops is all that's needed. Than drive normally.
Brian Capps (8 дней назад)
waiting for the engine oil to reach operating temps greatly reduces wear, cold oil is too thick and does not protect the engine properly.
Aldin Hurko (8 дней назад)
Make a video on showing us how to rev up our engines
Damien Williams (9 дней назад)
I disagree...I own Chrysler and Dodge vehicles, and they will not run right cold. I have to let them warm up. Thumbs up in the video tho.
ɯɐS ʎllǝuuoᗡ (9 дней назад)
Why not Minot?
Mike Reseigh (9 дней назад)
Thanks. Heard that before and have been on the fence about it being in Michigan. But I think you are right. You obviously have a lot of experience with motors. Thanks again.
I Kozar (9 дней назад)
,and while engine is on warm the seats with beer farts💨💥💨
Logan Ward (9 дней назад)
In the winter before I set off, I like to warm my car up by pouring a nice hot cup of coffee in the gas tank, without sparing the sugar. It helps to assure that my engine is nice and warm and happy. :) on occasion , I'll even shove a nice warm bagel into the exhaust pipe, to help my engine idle lower quicker.
Johnathan Cee (9 дней назад)
i still warm up my car at least for a minute before i take off. an engine is not a teflon machine thats indestructible. its a machine that if used properly and maintenanced well it will exceed expectations
Andrew Warren (10 дней назад)
I live in Western Australia in an area where it doesn't really get below 0c. I pretty much follow the instructions in the operators manual of my 2010 Corolla. It says start and drive straight away. I idle it for 30 seconds or less then drive gently for a few kms without thrashing the engine, before giving it higher loads and revs. The car has done 115,000kms and doesn't use a (noticeable) drop of oil, and runs as well as the day I bought it with 24,000kms on it. People, just follow what the manufacturer states and you can't really go wrong. Idling for minutes then caning it down the road will be worse than getting the oil circulating then driving easily initially. It's not rocket science as someone else has researched and documented it for us...
DAS PPG (10 дней назад)
What about the piston to cylinder wall clearance? Isn’t this an argument for warm up?
Russian Bot (10 дней назад)
Time to overturn Roe V Wade
Jack Class (10 дней назад)
yeah i agree drive you car slowly when cold don't let it sit.
Maria Czyrnik (10 дней назад)
I wasn't doing it so much 4 my car but 4 me getting Into a toasty warm car
ROAD WARRIOR (10 дней назад)
I warm up my crack pipe before I smoke crack
Kamolidin Muminov (10 дней назад)
I work up my 2014 Toyota Avalon Hybrid Thanks for the video Still warming up my engine)
IvanDeeTerrible (11 дней назад)
1:35 name tattoo
Vintage Everyday (11 дней назад)
Oh no Scotty, you forgot that parts change dimensions with temperature. Engines are designed to operate at higher temps...before coming up to temp the parts fit is not optimum and the parts will wear faster when they are still cool. The key with newer low-mass engines is some warm up time, albeit (relatively) short, and don't excessively stress the engine/trans for the first several minutes of driving. Your info about the chokes and oils is spot-on as usual. I drive my vintage iron everyday. Keep up the good work!
rock steady (12 дней назад)
I wait til the rpms drop
Jack Moore (12 дней назад)
Scotty, It is interesting that the title of the video is SHOULD I WARM UP my car's engine before driving! No where in the video did you say that a driver MUST Warm up a car before driving it . Your point is that you SHOULD warm up your car before you drive (so the engine runs smoother AND THE FUEL SYSTEM DELIVERS THE RIGHT AMOUNT OF FUEL TO PREVENT EXCESSIVE FUEL TO THE ENGINE). And you qualified this comment with several statements.... "so the fuel systems do not contribute to engine damage". So for fuel delivery consistency.... older cars may need a warm up, where newer cars do not (until the sensors and computers on one's newer car start malfunctioning)..... NUFF SAID.... OK... I get it that lots of guys, responded below that engines need to be warmed up to allow for engine components expansion to minimize damage from uneven expansion AND/OR to get the oil circulating. FACT: Cold engines do NOT SHRINK to where the clearances do not exist (except in "POSSIBLY" EXTREMELY, EXTREMELY COLD CONDITIONS) and NORMALLY (unless the oil in the engine is extremely, extremely thin and/or poor quality) there will still be a film of oil in most of the right places in your engine upon initial cranking to protect it, until the oil pump gets oil pumped to the top of the engine (and LIGHT driving with that initial oil film will not damage the engine). Also, the piston rings are NOT a force fit inside the cylinders, as they actually have a standard gap which does not EVER close, when they are properly installed in the cylinder (except "POSSIBLY" in EXTREMELY, EXTREMELY COLD CONDITIONS). So any clearance damage from piston rings in a cold engine is highly unlikely given that the thin oil film is there after the previous engine shutdown. IF you live in one of these extremely, extremely cold climates you SHOULD HAVE an Oil Heater installed on your vehicle anyway..... to warm your car all night long which contributes to partially warming the engine too! All THAT being said, I am personally very proactive by nature (picky and detail oriented) and will warm up my car for a few minutes to allow oil to circulate WHILE I listen to the motor and other systems (power steering pump, water pump, cooling fans, etc....) to make sure nothing is drastically wrong including small animals caught in the serpentine belt (and selfishly... to get the heater or air conditioning working well - depending on the climate of the area I happen to be in). So I remember that you said We SHOULD warm up older cars for fuel delivery consistency/accuracy and it is not NEEDED for newer cars for fuel delivery consistency/accuracy, which I believe in my heart, is a correct statement. However in a previous video YOU did say that ALL Vehicles will eventually break down due to friction, agreed.... so the BEST WE CAN DO is DELAY the ultimate Demise of these rolling Objects of our affection! Including for some "detail oriented" owners (like me) warming our engines a few minutes before driving... even if it will not make a lot of difference... it just makes me feel better... ;-) GREAT JOB Scotty!!!
Faiz Khalifa (12 дней назад)
My tachometer doesn’t work
Jorge Rodriguez (13 дней назад)
I warm the engine in my Car If ever Just for a few seconds and put it in gear never had a problem, My late father never warm the engines in his Cars and I'm not gonna do it either
TimberWolf429 (13 дней назад)
My old diesel does need to warm up though, you press the throttle until it holds it's self down, and let it run at high idle, until the throttle springs back on it's own.
T C (13 дней назад)
Idle for a couple mins then start driving easy until up to operating temp. Engine will last much longer. There is no doubt about it.
M Medley (13 дней назад)
What about transmissions? Regardless Scotty; I love your post and vast knowledge of cars, but I will continue to warm my vehicle for just a couple min. And at least 5 min. in the winter.
Shawki Faddah-car fix (14 дней назад)
disagree every engine need to warm up، drive with cold engine will destroy engine faster. Scotty you should delet this video
Jer Bear (14 дней назад)
Eh it's not about a/f ratios it's about oil viscosity and letting it warm up so its able to get in between the barings. I have a block heater just for this reason. Plug it in at night and cut your warm up time by 80% because your oils already warm

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