PETROL vs DIESEL Engines - An in-depth COMPARISON

[@d4a]

Become a Tuning Pro: hpcdmy.co/dr4a Support the channel by shopping through this link: amzn.to/3RIqU0u Motivation: kzbin.info/door/t3YSIPcvJsYbwGCDLNiIKA Boring car trivia: amzn.to/3kmeYhR Smell like diesel: amzn.to/31wqVu3 Built for speed: amzn.to/35rQTzI Clean your car with your drill: amzn.to/3dSCxfU D4A merch: teespring.com/en-GB/d4a-merch Patreon: www.patreon.com/d4a

[@IronDuker8339]

Any plans on going a video of Air Cooled Engines?

[@wobblysauce]

You say internal combustion engine like there is a good external combustion engine.

[@Krosis_]

@Musa Jaiden I care enough to report both bots for spam :P

[@hifiteen49]

I'd actually think that the bigger room would see more damage because it has more oxygen

[@mohammedalshrief532]

machine learning iron station with pid control

[@B1Fr0s7]

I'm a mechanic and I must say I wish things were explained to me this way when I started working on cars. This video is highly educational and made very easy to understand. What you are doing my friend is nothing less than educating people with ease and it just puts a smile on my face.

[@jaypee9569]

I totally agree, one of the best video to explain the difference.

[@TanmoyDasIN]

@@jaypee9569 And how they work. 😊

[@mohammedalshrief532]

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[@mohammedalshrief532]

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[@xXLtDudeXx]

Yea I completely second this opinion. Between the infographics and the running dialogue this guy broke it down exceptionally well.

[@nuhashrahman8408]

A 26 min video with no BS and on point. Respect sir.

[@majortom4543]

respect indeed

[@nyxawesome9409]

Missed one very important point. petrol smells better than diesel...

[@pedrodutra4088]

I was waiting the entire time to why there aren't diesel motorcycles

[@seriouscat2231]

@@pedrodutra4088, I think he has a video on that too.

[@GusPD]

I feel like you just went through multiple semestres of mechanical engineering in 26 mins! The 2.5M viewers cannot thank you enough. What a great video sir

[@eldavso5703]

I am 18. Working for porsche as an apprentice. We havent covered engines in details yet so im trying to get ahead a bit. Im so glad i watched this. Thank you for such clear concise information

[@Chillaskme]

Daaamn good luck brotha!

[@Zeunknown1234]

Good luck bro/

[@tjonesauto]

I'm a retired automotive shop instructor. This would have definitely been playing in my class if I were still teaching!

[@pedrodutra4088]

So, quick question; Why aren't diesel motorcycles?

[@zaloban9562]

@@pedrodutra4088bikes operate on very high rpm plus they cant be too heavy, diesel go against everything a bike needs

[@Chillaskme]

Thank you for your service

[@luisrodrigues1630]

The way you explained the difference between torque and horsepower, was a moment of enlightenment

[@markj2093]

My favorite way of explaining torque is thus. Torque = How quickly you get to the accident site Power = How big an accident you have when you arrive

[@calebkiller97]

Yeah the distance in the leverage is the key 🔑 he makes it so easy to see

[@bananaking2828]

Yes, i agree, one of the best visual explanations yet

[@user-li3zs7ex5h]

Can someone timestamp where he explains this, i must of missed it...

[@user-li3zs7ex5h]

@@markj2093 Youve helped me finally understand torque 🤣👊💯💯

[@inambaguum]

I'm 44 years old and I'm pretty sure I learned more about the way diesel and gas engines work in this one 26 minute video than I did in the previous 43 years combined. Incredible job...very clearly organized and presented, and you know your stuff. Immediately subscribed and now I'm going to go watch a bunch of your other stuff. Thanks!

[@adrianrizzo4396]

Brilliant explanation. I'm a mechanical engineer by profession, with 25 years experience, and I certainly could not have explained this better.

[@ebusjo4604]

How are you doing

[@stuungar3390]

Ah, usual ups and downs, enjoyed this video, getting ready for bed. Thanks for asking 🙂

[@richardroberts8341]

Just bought my first Diesel truck and didn't know the difference between Petrol and Diesel engines. Your video really gave me the understanding I needed to appreciate the choice I made. Thank you for this very informative and excellent video.

[@michaelmcilrath9466]

Thank you for a wonderfully clear and logical explanation! I am an 80 year old non mechanic. I now have a very good conceptual understanding of this topic.

[@ApprenticeGM]

For years I wondered WHY diesel engines sounded different to petrol - your explanation was excellent. Thanks for providing such clear and educational videos.

[@shahabanwar6280]

I am a Mechanical Engineer and I have studied this all in one whole semester. I came here to revise but I must say it is the best explanation and comparison I have ever come across. Concise and detailed as well. Perfect! Keep up the awesome work, brother!

[@clitflicker9769]

So you’re not a mechanical engineer... you’re a trainee (labourer) studying to become a mechanical engineer.

[@rsuhaasgaikwad1249]

@@clitflicker9769 trainee is not the word. If he's experienced and is in a job he's a mechanical engineer but if he's still a student he's doing mechanical engineering.... That's how it should be said

[@rcdbraver]

Ok then which is the better engine diesel or petrol?

[@irsshill4502]

@@rcdbraver Diesel has a higher heat efficiency. So diesel.

[@동명대미래자동차학과]

@@irsshill4502 Thermal efficiency is high in a diesel engine, but the cost-effectiveness is excellent in a petrol engine.

[@IBANEZfil]

I love this channel, the only one where things are explained calmy, in detail but without boring you like some channels do. Please, as you're growing, do not change!

[@richardcaldwell6159]

Ahh, yes. I've noticed his talent and his heart. I'll do my best to ensure that my interactions with D4A enlarge his soul.

[@sebastiansellers5849]

My thoughts exactly. Keep up the good work.

[@embeddedsystemsiotprojects2055]

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[@mohammedalshrief532]

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[@mohammedalshrief532]

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[@paulmorris6177]

I've watched A LOT of "intro" diesel vs gas/petrol engine videos, also A LOT of "how they work" videos. Your video covered the same (if not more) information in a shorter amount of time. No BS. No "talking down" to people, just a lot of useful, helpful information in a short, easily understood (even with the accent) video. Thanks! It was very educational.

[@margaretnacey9137]

I love this guy! He really puts complex mechanics in understandable terms with great visuals. My father was really good with mechanical stuff but he never even considered teaching us girls about fixing cars and my brothers weren’t interested. Max (our cat) was the only one that sat on the car and watched him work. I’m going to watch this guy as much as I can. Maybe even get a work book, if anyone can recommend one.

[@imjco1927]

I spent almost 30 minutes of my life watching this and i learn so many. Thanks and more contents! God bless!

[@ahobimo732]

I think this is the best channel on KZbin for explaining internal combustion engine technology. And given how much automotive content there is in KZbin , that's damned high praise.

[@jhuntosgarage]

Taking a somewhat boring subject and presenting to in a fun and informative way, that's talent my friend. Once again. I have learned and have been thoroughly entertained. Thanks for sharing!

[@d4a]

Thank you for your continued support J.

[@jeffrentsch4318]

I think it is interesting that is why I played it. Is very good.

[@thepurdychannel8866]

@@jeffrentsch4318 what about hot bulb engines

[@bobjamaica9045]

Why would this be boring? Kinda subjective no?

[@Greg_Chase]

An interesting bonus or benefit in a Diesel engine is that very strong electromagnetic interference in the surrounding area cannot stop the car or truck from running. In a gasoline engine that has the normal ignition system - spark plug, coil, distributor, 'high tension' wires that carry the 20,000 volts to the spark plug - if you drive into an area of high electromagnetic activity or interference, the car will sputter and won't run right, and will possibly stop running altogether. Being stranded on the side of the road unexpectedly is a bummer. There are air vehicles called "ufos" or "uaps" that are actually classified vehicles operated in various countries that have a type of propulsion system which creates a lot of electromagnetic interference in the area they operate, and if you enter such an area, your Diesel car or truck will continue to operate (with the possible exception of the car's lights since the battery and wiring are still affected by the ufo propulsion method). It's a pretty rare event but if you live close to a military installation, in many different countries, that is where those classified vehicles are operating from and if you happen to live near such a base you know what I'm talking about. It's a good feeling driving a diesel vehicle in those areas because you still have freedom of movement if one of those air vehicles is in the vicinity. Much better than having your gas-powered car suddenly sputter and die and then you're stranded and you're walking (or running if you get frightened easily). This is a rare case but if you happen to live near one of those military bases - you probably have had a personal experience or know someone who has. They operate those vehicles all over the place in the U.S., and Central and South America. Probably in Europe too. . .

[@dk2428]

Engineer with 20yrs experience in auto and aircraft industry. I whish i could explain things the way you do! It's a gift! New sub.

[@lonelydance]

What do you think is better to buy as a used car?

[@dk2428]

@@lonelydance I have a 90s Saab as my daily. Yes, its 3 decades old, no I haven't had a single major malfunction. I do all the maintenance myself and I do it meticulously. Simple tech, combined with good care is what keeps you going. Personally I'll stick with a basic petrol engine, can't go wrong with it.

[@KB-gd6fc]

I’m an amateur shade tree mechanic. Just now starting to dabble working on my vehicles myself. I honestly feel blessed to have resources like this to learn from. And mad respect to you mechanics who had to learn from books or just staring at the engine until you figured it out.

[@georgegithi2509]

Didn't know much about cars. But well!!! That was one hell of an amazing 26 minutes of my life!!!

[@mohammedalshrief532]

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[@TheCytb]

Before i started to watch this video(saw on the recommended window) i thought i will start this and i will stop watching after first 3-4 mins but i couldn't stop it, this is a real perfect video, thank you so much

[@Luis_Ah_Hoy_Jr]

Direct to point. Comprehensive. Simple. This channel is top of the Elite, when it comes to explanations on a variety of technical aspects of cars. I can't even explain how glad I am for coming across it.

[@d4a]

Thank you so much for your kind words

[@JoshHardman-yz5ig]

I always say, the better you can explain a topic to a novice, the better you understand that topic. Thank you for this, you understand it extremely well!

[@Lerumles]

“If you can’t explain it simply, you don’t understand understand it.” A good sermon is like a miniskirt. It is short enough to cover the essentials and long enough to keep you enticed. 🔥🔥🔥 this vid is 🔥🔥🔥

[@meldwin8439]

I have loved Diesel engines for a long time now, I bought a diesel Cruze for the fuel economy getting 52 mpg. After watching this video I appreciate Diesel engines far more now. Thanks for what you’ve done, it was very educational.

[@mikesimpson3565]

Another great video. I am a qualified mechanic with some 40 plus years in the trade and it would have been greatly beneficial if my tutors had had the educational vocabulary you demonstrate in your videos. Two comments, when the throttle valve position on a petrol engine is reducing air flow it also has the effect of lowering compression pressure . The other comment is that some petrol engines are also very long lived easily surpassing some diesels. More to do with build quality than fuel type I would suggest. I'm talking automotive here. Keep up the good work.

[@abhishekchaudhary9542]

All of the things that I've learnt till date about the differences between these two engines have been included in this video. Awesome content.

[@quincyileh3250]

I love the straight to the point , unlike some people who will talk out of point for 2 hours when the total message is like 10 min

[@andrewmcfarland57]

You are easily the best Internal Combustion teacher on yt. Watching this revved me up to do a Wrangler TDI conversion. 🙂

[@Bazza.baz224]

I thought I knew quite a lot about petrol an diesel engines. I was wrong! I learned SO much from this video. Thanks 👍👍👍👍

[@thos3474]

By far the best channel to learn how vehicles work, keep up the amazing work!

[@AgentSmith911]

I love the large amount of torque on my diesel engine/car. It means I can cruise comfortably up steep hills without going beyond 2000 RPMs without shifting gears all the time. And at the highway, I can cruise at 130 km/h at 1600 RPMs at the eight gear and have great fuel economy.

[@charlescarabott7692]

Yes I know. Same with my BMW 2006 320D

[@djroskedjroske]

What car do you have? (Maker, model, year, engine displacement?)

[@justjeff4173]

I've had both gas/petrol and diesel versions of the Honda CRV. The gas is quieter around town but on the highway the diesel is far quieter than the gas version. As D4A said, the torque is addictive.

[@AI-qd4vb]

You can do the same with petrol cars... And keeping the engine so under revved is not something good. The engine will vibrate more which will wear it more. The dpf will be unable to regenerate and egr valve will start building carbon... Additionaly, these 6+ geared transmissions are also quite dumb. It just increases the number of gear changes, increasing wear and complexity. Youll feel more laggines and hops too...

[@pinerock9668]

@@AI-qd4vb gas vehicles usually runs at higher rpm than diesel. It's true that engines in general run rougher at low rims and usually while under load however some engines (diesel) can run at a lower rpms under load as smooth and another engine (gas) while under load. Although diesel is usually rougher at idle but it's not usually noticeable while moving. They both have tradeoffs

[@BruceS42]

We don't really drive many miles, but we bought a diesel for the towing capacity. Our diesel truck can pull 30,000 lbs of trailer, so it tows our 21,000 lb trailer with no trouble. Getting a gasser to do that would be harder. It also turns out to be handy for refueling, since while towing we can't use the "normal" fuel stations/pumps, and instead need the "truck lanes", which (typically, at least) do not offer gasoline. I just hope that when it comes time to sell the truck, it will have retained a good bit of that price premium. Modern diesel engines, with DEF systems, are commonly believed to be far less durable than the older models, so that part of the diesel advantage won't help me. As for "fun", I park the truck and take my bike out of the RV's garage, burning gasoline and making lots of smiles. Thanks for another great video.

[@CallMeCoachWalker]

This video earned you my subscription. Thank you for giving a detailed, unbiased description of both types of ICE engines and explaining how the turbocharger effects the petrol engine. I would love to know more about how turbocharging a Diesel engine affects that type of ICE.

[@Wydarr]

I concur with the sentiment here! You are THE BEST youtuber to explain stuff about how a car works in a way that is both easily understandable and highly detailed. I wish you get to 1 million subscribers FAST!

[@lefeagle]

Great video my friend! As a physicist myself with a master degree in Convencional and Renewable Energy systems, i can really appreciate your knowledge and effort. Mechanical Engineering is my passion. Greetings from Greece. Keep up your excellent work!

[@Trifonov161]

The best comparison of a diesel and petrol engine. Great job!

[@briannnnnnnnnnnnnnnnnnnnnnnnn]

30 minutes videos are always too much for most of us and i usually end it or forward it by the 10th minute mark. but i felt like this was a 5 minutes video. it was delivered perfectly and very easy to follow.

[@nicozimmermann8672]

I drove petrol my whole life but right now i look for a Lexus IS220D cos i can´t stand automatic transmission. sadly i know very little about diesel engines. Your video helped me extremely to understand the difference and on what to look for. Your channel is pure gold.

[@valentinuiliqnow6198]

my man best day ever. don,t stop. you are great ,my favorite engine HEAD

[@fastinradfordable]

…… Come on. You put this on yourself…. That’s what she said.

[@kingpin461]

I've always liked diesel engines because of their fuel efficiency but this video has given me much insight on them. Great review. Thanks

[@rippenzong2455]

quality dude. when you fall into a good youtube rabbit hole. subbing.

[@PartyPooPer4256]

Every well rounded mechanic has told me that a manual transmission diesel is the strongest car you can buy. I see why!

[@mahamadm9978]

I just want to say man. If i pass engineering in the next 2 years, I'll give you credit for that. Keep making these videos, you're saving people like me 😂😂

[@ezetobebad]

Well, that was the most informative explanation of the pros & cons of the diesel vs petrol debate I have seen. Thank you so much :)

[@pablorodriguezfernandez414]

Simple, graphic and intuitive, that's what I call a masterclass mate!

[@JasonDubsky]

First time I've ever subbed to a channel after having only watched one video. This is spectacular. Time to binge!

[@williamrizzo8574]

Discovered your channel last night. Now it’s 5:35 AM. You’re very insightful and thorough. Thank you

[@ragacbe]

I can't thank you enough for the amount of time and effort that's gone into making this video!

[@smileyeagle1021]

I was really interested on the power and efficiency discussion on gas versus diesel and would love to see a similar video looking at gas versus diesel, as well as the most common alternative fuels (ie CNG, Bio-diesel, Ethanol, Propane, etc). As gas and diesel prices become increasingly unstable, I can see a lot of people taking alternative fuels a lot more seriously.

[@ognjennovakov9355]

Great video man, nice and simple explanation. As a employee in one successful car repair shop just wanted to add the huge difference in maintenance and repair prices diesel vs petrol, especially old simple petrol engines, naturally aspirated, port injection.. 4 new injectors and a new turbo cost more than some second hand petrol cars. So even if diesel is more economic and more reliable on long term, it is absolutely stupid to buy a euro 5/euro 6 turbo diesel and drive it around city, making 600km per month, thinking that you will save money on consumption, when you gonna pay many times more on maintenance and repairs. Cheers from Serbia.

[@supeskrim]

How about the lifetime expectancy of the repairs. Yes slow moving parts of diesel are almost always more expensive, but expect 2-3 times lifetime before next repair. Also for periodic maintenance diesel is always cheaper as all you need to do is to change engine oil, keep the filters clean, that's all. No tuning, no injector cleaning, no ignition calibration, bla bla bla.

[@ognjennovakov9355]

@@supeskrim Expectancy of hardware of the engine block yeah right that's fine, but the damage you can make to the let's say turbocharger from a clogged particulate filter is as you wouldn't believe it. And that's only one example. And please go to your local part store and ask the price difference for timing belt kit, water pump, alternator, ac compressor belts and pulleys, and let me know for which car is cheaper, diesel or petrol. I'll tell you right away, at least 30% more expensive for the diesel.

[@supeskrim]

@@ognjennovakov9355 All the parts you mentioned are slow moving parts, and yes it's more expensive, BUT they are rarely need to be replaced regularly as their gasoline counterparts. And yes diesel is more expensive to be REPAIRED, I am talking only about regular maintenance when you treat your diesel right, like replacing filters, oils & most importantly the quality of the diesel fuel, then you will have at least 3 times as long as the gasoline. I surely hope you're comparing same age and not 70s gasoline vs 2000's diesel. Next you will have a new generation of gasoline adopting diesel tech like those GDI and TFSI and FSI with compression ratio > 16, spareparts which will cost you about the same price or more expensive plus extra parts for ignition & plugs for regular maint vs the diesel but shorter life. Anyhow ships, buses, trucks, generators are using diesel not only based on fuel economy but many other factors. What lasts longer diesel or gas engine? Digital Trends reports that diesel engines tend to be more durable and last longer than gas engines, with reliable operation and minimal required maintenance.Apr 28, 2020

[@ognjennovakov9355]

@@supeskrim I'm really sorry but i cannot go into further discussion with you based on your knowledge. Timing belt is a timing belt, it lasts 60-100k km or 4-6 years, it's made of rubber and it's simple as that, doesn't matter if it's moving a diesel or petrol engine, so keep changing oil and filters on your car, never change your timing belt or timing chain and good luck to you.

[@supeskrim]

@@ognjennovakov9355 In my tropical country timing belts for gasoline (and other engine rubber parts) are shorter life due to 1. Heat of gasoline engine & 2. The RPM of gasoline is much higher. For triming chain is a lot longer, but of couse timing gear is the longest.

[@spencer2652]

I can always count on your uploads to be fun and entertaining. You actually cover the questions most people are afraid to ask.

[@vedrantomic1054]

I usually never bother commenting,liking or disliking a video,but man this video is so educational,everything is explained really really well,you made everything clear Awesome job man

[@ravithapa7401]

watching your video learning about engines is much easier than learning through books . i can't go without liking your video thanks a lot.

[@alexandermishev6897]

Clap, clap, clap (that's me clapping hands) - an excellent and very intuitive explanation of a matter which is broad by itself, and constantly abused by many, hmmm, "experts".

[@vid8152]

You've litarally answered all of my questions I've ever had about this topic. Great video!

[@johnnyjayrico]

So far the best video about engine comparison... amazing...

[@ericw.1620]

this video answered every question I had about diesel vs petrol, every question I didn't know I had, and every question I came up with while watching the video. Bravo 👏

[@tonydunaganjr2184]

At first I was hesitant about tdi engines and now I’m really confident, tdi engines are a long term investment, thanks for the clear lesson.

[@GurmeetSingh-vn1lt]

WOW A great insight into the world of petrol and diesel engines. Loved the details and aspects covered by your team. I am a dieselhead and prefer diesel engines over the petrols and now the future is electric.

[@x98334]

Channels like this is what makes KZbin great! Subscribed.

[@GetMoGaming]

Fascinating! I always wondered what caused that characteristic clatter sound in diesel engines. I know now, it's a combustion timing-thing.

[@justsomedude2882]

this is literally the beste video explaining this that i have ever seen and i looked at alot of them !

[@CaptainSpock1701]

One minute in: Yeah, heard this all before, same old same old. Twenty six minutes in: WOW? Almost finished already. What an eye opener!! And I'm not even a mechanic, I just like to know something about a big range of subjects, but this was excellent! *Definitely worthy of a sub!* Thanks again!

[@namantanwar3287]

damn man, I feel so wholesome after watching this video. All my distorted knowledge for engines just got converged into a better understanding and ability to connect to all concepts. thank you so much bro! You're an excellent teacher

[@pabitrikalita3940]

awesome video bro, and recently Toyota has announced that their dynamic force petrol engine can achieve thermal efficiency as high as 41%.

[@harley8918]

Every time I watch a D4A video I wonder why this channel doesn't have 3 million subscribers

[@JulienGardner]

your channel is a gold mine for curious people like me. THANK YOU

[@rachelmarfo9917]

Wow!!! I am not mechanically inclined but surprisingly this wasn't boring. No, not even for a moment. Very intriguing!!! Will love to have you as a teacher. TEACHING IS IN THE DNA!!! Thanks so much.

[@Night_Monkey]

This dude could accurately and effectively explain the meaning of life

[@pretendtobenormal8064]

sycophant

[@abantuboy]

Say less

[@CatsForLife21]

#OneMessageFoundation

[@FabioGs007]

As always... it's a pleasure to watch your vids mate. I watched all these 26mins of this video. My both thumbs up for you. Cheers from Spain

[@jovanzacevski]

Although i know the majority of what is being said here, i enjoyed listening him and feel like i learned something new! ( and that is true ). Very short and straight forward explanation of everything. The first channel i really and truly enjoy listening to! Keep up the good work.

[@cyberbiosecurity]

i occasionally played your playlist while sleeing and it was the most automotive dream session i ever had

[@nickharalampopoulos]

Great comparison video. The real reasons for lower max rpm for Diesel engines are the 3rd you mentioned regarding the timing of the ignition and the slower burning speed of the diesel. Even if we somehow we could ignite diesel earlier than TDC like petrol engines do, still the max rpm would be around 6500 rpm. Your 2nd reason (under square cylinder design) is actually a result of the real one. Knowing that there is an upper rev limit, there is no need to design an over square engine. Also since diesel is actual a lean mixture engine and combined with all the above it can have very good fuel economy in small throttle openings, just like everyday city use. Thanks for the video, I really enjoy your channel.

[@javeedsultan8484]

Outstanding, you my friend are extremely talented, clear and precise description of the difference between engines. and most impressively it didn't feel like a 26min long youtube clip. You would made a brilliant teacher.

[@jozsefizsak]

This was great! I've always found it tremendously satisfying to understand how different things in our world work and it tends to be useful as well.

[@staus949]

I have a brand new training video for my first years, really thorough, accurate clear information. well done. You could put this in a text book it was so clear and concise.

[@dangosypethau]

A comprehensive step-up from your average KZbin video on this topic. Excellent.

[@stonedmountainunicorn9532]

I love my 1.6 diesel, 1000km with 40 liters, even more now

[@NortLord]

this dude explained more about dirtbikes and cars, basicly all engines than my dad in the past 14 years...

[@rogerandersson279]

Exellent with beautiful animations as usual :) I got to learn something new this time too; I've never thought about the timing issue on diesels before. I thought about one more detail which gives diesels an advantage over gas engines: no extra pumping losses on partial gas (no intake restriction).

[@mijnworld]

Best disnctions ever done and in a simplified manner

[@aitchie4532]

Another advantage of a diesel engined vehicle, due to the high compression ratio, is its superior engine braking. I have a Toyota pick-up with a normally aspirated 2.4 litre diesel engine and a 5-speed manual gearbox. I seldom have to use the brakes, because when driving carefully and keeping a safe distance from the vehicle ahead, it's easy to anticipate when one needs to slow done for a traffic light, stop sign or when the vehicle ahead slows down. All that is necessary is to take one's foot off the accelerator pedal and the vehicle will immediately start decelerating. To slow down faster one can change to a lower gear. This lengthens the life of the front disc pads and the rear brake shoes. Also, I seldom use 1st gear. I run out of revs too quickly. The diesel engine provides ample low-end torque to comfortably start moving in 2nd gear. Similarly I usually change from 3rd to 5th gear. The only time I really need 1st gear is when starting to move uphill with a heavy load; and 4th gear when climbing a steep hill, or to accelerate rapidly to overtake another vehicle.

[@landusagemistymoorneighbor5230]

it is the most useful demo clearly explaining the difference between petrol and diesel engine, satisfied my curiosity, it is awesome, I definitely will recommend it to my son, 17 years old boy, will go to UCLA for his engineer program this summer. Please keep on to make more video like this, thanks

[@whenthetrumpetsounds5353]

The best comparison ive ever heard and see. Thank you sir.

[@richardcaldwell6159]

I prefer compression ignition petrol (actually methanol). Stoichiometric, but with some tricks. Christopher Edwards at Stanford has some videos you'd enjoy.

[@d4a]

Always with the next level stuff 😉 I'll definitely check it out.

[@harosokman]

What an absolutely fantastic video. Well presented, informative and interesting.

[@chino3321]

I'm a ME and have a class about int. combustion engines and this guy just saved my ass. Insane video, mad respect

[@sheyia.39]

This is by far the best video on this topic. You are indeed a great Teacher.

[@JM-cg3ps]

You and Jason from engineering explained need to team up for a show, you're both great at what you do! Keep up the great work!

[@maxcactus7]

My favorite new video notifications on Sunday mornings! I learn so much from each of your videos, it really feels like I'm getting a university level education on automotive mechanics, design & engineering.

[@arnavbhatt1763]

Very well explained and visually demonstrated video on the differences of SI and CI Engines.👍

[@cuddlepaws4423]

This was an excellent explanation of the differences between the two engines and how they work. Countless times, both myself and my husband have been following a diesel vehicle and you know they have touched the throttle because it seems like they have turned into the Bat Mobile and are forming their own smoke screen, a really black and smelly one. Now we know why, it's not new and/or it has not been maintained correctly. The worst offenders were public transport buses. We'd dread getting stuck behind one because they were foul and being an asthmatic, it's not fun breathing that stuff in.

[@haxhunyadi5582]

I was never interested in cars, I feel awful when driving in the traffic jam every morning. However, these videos are so well made, I started to understand why there are so many enthusiasts even in a crowded city. Great educational value!

[@SamichHunter]

Thank you!! Love learning about the benefits/drawbacks of differing technologies. I've been around both kinds of engines all my life but have always had questions of clarification pertaining to the little things and your videos are excellent at filling in those gaps in my knowledge! Again, thank you for the time and effort you put into your content. It shows in the final product because it is SO effective. Bless you and be safe.

[@norko9487]

10/10 learned more in this then i have during all my time in school when i was younger xD

[@oluskloc]

9:50 I can agree about engine internals are long living but now fuel systems (common rail pump and injectors) and accesories (battery, starter, alternator, DMF, clutch etc.) are much more expensive and not living long as petrol engines.

[@Captain_Catbeard]

This is by far the best and most informative video on petrol vs deisel thank you so much for taking the time to make 5his video!