Toyota's New Dynamic Force Engine Is Super Efficient 

Mercedes uses direct money injection to achieve that efficiency.

Since it's a common question, this style of engine is currently used in the 2018 Toyota Camry with a 2.5L inline four cylinder. It runs on regular (87 octane) gas, makes 203 HP and 184 lb-ft, and the base trim is rated at 29 city / 41 hwy mpg. Pretty solid numbers for a non-hybrid vehicle, especially considering the decent power.

Efficiency versus SkyActiv-X? Many have asked. I reached out to Mazda, and here's their response: "We don’t expect it to be much beyond the best in the industry at the moment (a Prius is 42%, for instance), but that’s just the peak. The benefit of SPCCI is that where the Prius has a minimum efficiency of 2% under WOT, SKY-X will be way higher when you’re flogging it. So no real numbers yet, but the floor should be way higher, and the ceiling should be just a little higher." Essentially saying that while peak efficiency may only be slightly higher, the load range of efficiency will be far broader. Hope this helps answer your question!

I am totally amazed at my 2.5 Dynamic Force engine in my 2020 Camry LE (8,350 total miles) I recently took a 445 mile trip that put my car through just about all the scenarios a car could face including, freeway, hills, mountains, long gradual inclines, long gradual declines, 78 miles of winding uphill, downhill, sharp turns, not so sharp turns, manually downshifting, manually upshifting, and driving around a small coastal California town of Fort Bragg for two days. After I came back home I filled up the tank to check for the first time my gas milage turned out to be...an amazing "35.8 miles per gallon." I had to redo the numbers on my calculator to double check...445 miles divided by 12.4 gallons of gas. I am totally amazed! And all these miles were not "easy interstate miles"...only about 125, or so. My car performed better than I anticipated and this engine...totally amazed me! The car is rated for 39 MPG (freeway) on the window sticker. It looks like it would do even better! Totally amazing!

I just want to say that your channel is a blessing to those of us trying to learn the science behind cars. Thank you sir

This is seriously impressive stuff from Toyota. Just a simple thing like the angle of the intake valve and a small lip, things that the automotive industry has taken for granted for decades. 40% thermal efficiency in a road car is a huge landmark, it was thought almost impossible to achieve just a decade or so ago. These days companies brag about anit-lag turbos and what not but this is much more important innovation.

41% is amazing. my degree is in chemical engineering and when i got that degree 30 years ago - 33% was about the max you could get.

I am an owner of one of the cars with this engine, an M20A-FKS engine. Just got 46.2 MPG during a one-hour highway trip, and it's not even a hybrid. I'm thoroughly impressed!

Big thumb up for Toyota’s simple but effective solution.

Hello all! If you enjoyed this video on engine tech, here are a few features you may also enjoy: Mazda's SPCCI Engine - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-yNSxow3W7ek.html Infiniti VC-Turbo Engine - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-A6H66xfEZC4.html Mercedes 50% Efficiency - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-kOhmgpkiIfg.html HCCI Engines - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OVWZFdb_AGc.html

I think what you really need to talk about is information efficiency. You explained a really cool concept in five minutes seven seconds. That is like 99.45% information efficiency. It was also really well done and interesting. Bang on all around!

I like that they combined direct injection with port injection. Engines with direct inject only have crazy carbon buildup problems, and port injection keeps the valves at cooler temperatures.

The only thing that concerns me about this engine is all the new electric control components, which might be more prone to failure than their simpler predecessors. Knowing Toyota though, I'm sure they're all engineered to last a long time still. Another great video Jason!

Very impressive. If this engine really gets 40% in production that's pretty incredible. Nice work Toyota!

oh great, somebody finally decided what the perfect stroke to bore ratio is, I've heard that about as many times as I've heard about the worlds greatest guitar player.

awesome to see this, as always you're videos are amazingly easy to understand! Seem like very impressive efficiency gains without complicating the engine and adding too many moving parts. Hopefully this is something that other manufacturers can implement as well.

I enjoyed seeing these models setup in multiphysics simulations like COMSOL or ANSYS. Those were hypothetical situations, but what you've explained is the real McCoy. Major kudos for yet another engaging video

You are always the best. On point, no unwanted rubbish like in some channels, explain everything in a very simple way to make a noob understand yet explains everything thoroughly. Thanks.

Jason for 2 years I have been following your channel and have never been disappointed. Being an ME myself I so love the intricacies you touch by the content you create. I hope to see more videos on Hybrid engines and their industrial developments in the years to come.

Man, that was one perfect class on this engine. Very impressed having seen a wide array of teachers on new tech. Kudos & thanks

I am surprised that such small changes can actually make so much difference. Its very clever way of improving efficiency without significantly changing the engine design.

I'm glad I This is a Toyota engine and not a Renault. Otherwise it'll be just 100% thermally efficient because it would be broken or 0% thermally efficient because it will be on fire.

Thanks for making this video to shine a spotlight on these things, it's really great to see the effort that goes into optimisation of engines (and all similar things) that go underappreciated and taken for granted.

Very interesting. Super well explained and informative

By the time this series is finished, we'll be all design engineers. Mighty video as usual and not short on detail.

Great video. But I wanted to say something regarding the combustion time to clarify. It may be important to note that the actual combustion time doesn't change. The reason you see the flame front burn "faster" with the new engine is because of better atomization of the AF mixture hence an even ignition of the total mixture. This is in contrast to the one that is "slower" where the propagation of the flame front within the cylinder takes longer because of the messeier nature of the AF mixture. It doesn't change the point of your discussion, just adding to it. But for those interested in more details it might be useful. Good to see the public benefiting more from the implementing of this technology to mass market.

Hey Jason, thanks for posting informative videos like these. I really enjoy learning about new engines and ways companies are trying to make combustion engines more efficient. Keep it up!

Toyota’s new family of engines are absolutely marvelous. While other manufacturers took the easy route and slapped turbos on their cars (including my beloved Honda) Toyota actually went the extra step and legitimately created a better engine. At 203hp and almost as much ft/lbs while allowing the Camry to get 45mpg in C&D hands there’s no denying this company capabilities when pushed.

I work at mercedes workshop/service (whatever its called) but your videos are getting me more and more interested in starting to study car engineering.

Another great video. I’m really happy I found your page a couple years ago

Hey, I've been a long time subscriber (I'm a subie salesman and your videos are perfect) but I came here cause my Google Assistant recommended a jaloponik article. The video didn't load on their site because I clicked on the ad, but I wanted to watch it. Shout out to you man, you've been making quality videos forever and I love your channel.

Kind of amazing that we're now actually past the thermal efficiency limits that would have been printed in my textbooks, if even by a percent or two.

Another amazing video, keep them coming!

Intending no disrespect to Toyota’s engineering team whatsoever, but they are hardly alone in the world of brilliant automotive engineers. The amount of creativity and innovation related to the internal combustion engine across the industry in just the last few years continues to amaze me!

Really love your work dude! I’m studying mechanical engineering currently but I’ve been a follower since 2014! A big Toyota fan as well

Thank you for the comprehensive overview of the new Toyota approach. Very impressive steps forward from the previous toyota 2.5 engine.

Awesome video! Glad to see you back in front of the whiteboard!

My fellow Oregonian! Excellent video as Always. Every once in a while I'll catch one of your older videos. Like the Yonaka ones. Have to say, I kinda miss the hair. Buahahahahahaha

GREAT EXPLAINATION / VID

I very much appreciate videos like this.

Love working late, never miss a engineering explained video!

Now this is the video I am more interested to hear from u sir please keep make more vids, especially like this about Toyota.😉🙏🏼 keep up ur awesome work.

Hello Jason, as a fellow mechanical engineer, I have enjoyed your shows. Engine efficiency is also a subject of maniacal passion of mine, which has led to me in a journey which included earning an MSc degree in Germany and a PhD, both with specialization in internal combustion engines. Anyway, the reason I am writing to you is that in the Toyota piece you did, you showed in-cylinder animations of a tumble flow that, among other measures, resulted in a noticeably quicker heat release, which contributes to the higher thermal efficiency. I investigated this in detail for my PhD research that started in 2010 and concluded in 2016, which include 2 SAE International Journal of Engines articles, one ASME Journal of Engineering for Gas Turbines and Power article and an ASME Internal Combustion Engine Division conference paper and of course, my dissertation. I wanted to propose that you could do a piece on a novel method I discovered to improve engine thermal efficiency by actually forcing the flame front to move away from the combustion chamber walls, thereby reducing the convective heat transfer thereto. I am no longer bound by any NDA or embargo, so I am eager to share this with the world! I also have in-cylinder schlieren imaging and CFD analyses that I can disclose and share for your video presentation. If this interests you, please don't hesitate to contact me. See my PM to you on FB Messenger for contact details.

Just got this motor, attached to a 6 speed corolla hatch. Motor is so good it makes you feel like it’s a hot hatch, plus it sounds good at high RPM.

Great video as always, highly detailed!

Always fascinating features you've come up with. Amazing vids !!!

I need to learn more, I can absorb some of your teaching .. THANK you

I love your videos. You're doing a great job young man. Well explained, well produced, direct and to the point. Keep up the good work!

Innovation from Toyota keeps the internal combustion engine getting better and better! Nice solution. *Excellent video. I need my regular fix of EE!* Thanks Jason! Rob

yessss my wish comes true, dynamic force engine explanation. thank you Fenske aka EE.

Great video! So glad to see you using computer animation, but not abandoning the whiteboard.

Love the video graphics you show here. They are top notch. Along with the slow motion combustion, this video gives such great detail of what you are sharing. Just love everything you put out. Would love to see this new tech turbo charged and get a model out there from Toyota that is performance driven. Something like the Honda Civic Type R. Thanks again and Happy Easter!

Great as every video of yours! I'm trying not to miss each and every one of them! As Honda fan I would like to know also where are they in this Tech. Race ?

Amazing I can't believe they never optimized the combustion chamber in this way already. It's seems so intuitive now that some one has done the hard work~

Nice Explanation, Needed still more details on the additional parts added. thank you

Pretty slick. It's so impressive how far the modern engine has come!

Damm... I was going for 2019 Honda CR-V but this something I can’t ignore... Hello 2019 RAV4

Could you please do a video on Suzuki's Twin Swirl Combustion Chamber (TSCC) that they use on their motorcycles? It sounds similar to this, but you explain things so well! Thank you as always.

Thanks again Jason, for this great video. Big shout out to you. Dutch regards.

You do a fantastic job explaining and sharing technologies. Thank you. Keep it up.

You should honestly be a college professor. Not only do you explain in terms that are super easy to understand, you have such a strong drive to educate that most educators don't even have.

Could you do a comparison vid of this engine and the skyactive x engine. Thermal efficiencies, fuel consumption etc.?

thanks for a great video. don't underestimate the value of good editing.

I like that they've set the Injector up that it still hits the I take valve that is a nice touch

Awesome video. I guess Toyota is addressing the DI carbon build up problem with this new technology as well as improved efficiency. If I am understanding the video, fuel is being sprayed on the back side of the intake valves via the unique placement of the direct injectors and also from the port injectors when under low load. How cool is that!

Great video with very clear, in depth explanation. I'm curious how HCCI stacks up against this technology. I have always thought HCCI + camless = holy grail of internal combustion engine thermal efficiency.

Great videos you have. You could do a video about Ethanol and it's proportions on gasoline and even 100% ethanol fuel. It's benefits etc.

cant stop watching your videos, great channel

Really cool by the way love the vids

My wife's new r av 4 has a dynamic force engine and I have to say it is awesome on gas and gives the vehicle 203 horsepower.

wow, really well done. Easy for a lay person to understand. I am in the process of buying a 2022 rav 4 hybrid. Again, well done!

Nice work, you always do such a nice job with your videos.

This channel is much more than just an educational channel ... Also bro i would like to suggest smtn.. can u make a video on ECU remapping how it done, how it works etc...

All this engineering. But still no Supra.

As usual, awesome job explaining a complex engine.

that pinkmarker on the top left doesn't read on camera well. Wanted to mention in previous episodes but I forgot. Great vid as always

13:1 on pump gas, just seems amazing.

Best video in a while!

Thank you for the knowledge as always!

Good video, looking forward to hearing more good things from Toyota

Another excellent explanation of another new internal combustion technology, that can help extend the life of the IC engine. I really enjoy these very informative videos. I also enjoyed the similar videos you did on the new Mazda controlled compression engine, as well as the Nissan/Infiniti variable displacement / adjustable crankshaft/connecting rods. Just imagine if all of these new innovations could be used in concert together, combining all their respective efficiency and power improvement benefits. A shame such a blend is unlikely any time soon, given how the companies will likely exercise their intellectual property rights, and not share among their competitors. Further in the future we could see an inline 4 engine with variable displacement, controlled compression ignition, AND special dynamic force technology - especially given the ever tightening emissions regulations, and the current pipe dream of going full electric.

This is so cool, love to see what they could do with a modern day compact V8 engine.

saw this video on MSN Auto. Very articulate fellow. All in one take. Info also very interesting.

Electric oil pump. I like the sound of that, potential mounting in convenient location, potential diagnostic procedures like checking filter flown or system functionality, cold start up priming.

Hey, it was cool running into you in Starbucks just now! I love your channel!

Shorter stroke engines like to run faster. Extremely long stroke engines are slow but provide more torque. Keep up good work.

Now I want a Dynamic Force / Skyactiv-X combo. The combustion rate & bore ratio part of DF would probably negated by the benefits of compression ignition, but the intake angle of DF could still benefit compression ignition.

I love the latest string of videos covering engine technologies

i'm Italian, i dont know english very well, but you can make me understand the same. (google trans) >D. good work, thx!

"Laser-clad valve seats" Perhaps they meant a Valve seat with a coating that was deposited with the assistance or involvement of a laser. If the valve seat has lasers in it I would love to know more.:)

I really appreciate your explanations..as a professional race engine builder I struggled for years over bore vs stroke...you have provided answers other than opinions....I was wrong for yrs choosing short stroke hi rpm over small bores But my question is ..does the force engine require hi test fuel and how do they manage the high compression

Great stuff! Thanks for another informative video.

I believe the 2019 Rav4 is also using this engine.

So back to under square cylinder geometry.

Great video, i watched it 3 times. Very informative and now love my new camry even more now.

I'm sold! Forget about the 97% efficiency of Tesla Model 3 motors, I want a car with 10,000 moving parts instead of 20, one that has tailpipe emissions and isn't insanely fast off the line, one that the dealership will be able to make money on after the warranty runs out.

We all now deep down in our hearts what we really want from Toyota: *3JZ*

I don't know how but we need for Toyota Infiniti and Mazda To work on an engine with all 3's main power (Infiniti with the variable thing Mazda with the SCCI and Toyota with this)

Always great information, thanks.

Hi Jason, First just wanted to say thank you for this channel it has been invaluable to me as a student of the automotive world! I also have a request for a video on engine oiling methods (i.e. wet sump vs dry sump vs baffled). What differentiates how a race engine distributes its oil vs a street engine? Some questions I’ve never really found simplified answers for and I think the auto/modding community should have a better understanding of. Thanks, Nino