Reacting to your recent comments & criticism (Season 2 Episode 2) | Auto Expert John Cadogan

[@AutoExpertJC]

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[@mrbaaghi1189]

Dear John Please share your feedback on the Ineos Grenadier.

[@lasentinal]

I particularly enjoy the spelling, punctuation and grammar corrections. I have tried to explain to many people over the years, why in science, engineering and medicine, we need an accurate language. I hope that this comment measures up to your standards.

[@AutoExpertJC]

I give your comment 14 out of a possible 10...

[@abogoni]

wht you sa - your way too critical of people speling and gamma 😵

[@brettleonard8602]

@@abogoni Why is there not translation thingy below your comment? KZbin failed you mate.. no one will ever know what you said.

[@vk3fbab]

There is a massive difference a comma can make to the meaning of a sentence. The difference between helping your uncle Jack, off a horse and helping your uncle jack off a horse could result in prison time in most countries.

[@brettleonard8602]

@@vk3fbab point made. That analogy though, do you have a fu..ed up uncle?

[@alexrobinson2100]

Learnt so much from you John! I once wanted a caravan, now? I rent them from a website, delivered to site, clean, and none of issues that relate to towing, maintenance nor any of the costs of purchasing one.

[@sticks2478]

What I'm really hoping for is a video breaking down the engineering of straightening multiple sheet's of A4 paper.. without a doubt John is the world expert on paper straightening.

[@AutoExpertJC]

We all play to our strengths...

[@PeteGeek676]

*Season 3 spoilers*

[@NeoCavo]

John doing the job of my yr11 physics teacher, without putting me to sleep. Too bad modern teaching is hostile to old men, John would be the school teacher everyone remembers 30 years later.

[@AutoExpertJC]

I take your point - thanks - but it's actually more like university physics minus all the mathematics.

[@davidwild66]

@@AutoExpertJC If you took the maths out of physics, the degree would be much shorter, but we'd have much more busted stuff laying around.

[@richardwalsh5570]

👍👍

[@abogoni]

haha - for sure - I would have paid attention in class 🤣

[@LIL-RED-BIRD]

As a child my parents made it clear that education was to be taken seriously” you listen to your teachers if they punish you I’ll punish you when you get home” I’ll note that parents who lived through WW2 in occupied Europe and only had grade 8 education may have had something to do with this. I’d also like to point out education and intelligence are not the same thing.

[@DrakeN-ow1im]

Careful, John - a good friend of mine was a aeronautics and avionics engineer employed by a major airline primarily as a systems fault finder. He was also almost dyslexic. When he retired from that frenetic work environment he esablished a very successful air conditioning and ventilation consultancy. His saving graces were a great memory, quick mind and an ability to recognise his shortcomings and to seek assistance from qualified others when needed. Readin', 'ritin' an' 'rithmatic abilities are a huge advantage, but not essential where other capabilities are available to compensate for shortcomings in those attributes.

[@stendecstretcher5678]

Bullshit.

[@whatsupshittafabraans1926]

My father (Dutch) was freelance mister fix it, English his second language, stuttered a lot because of frustration, but fuck me could he fix shit. Qantas had a case to case interference fit on a gas turbine compressor module (jt9-747), , without outside interference, he said in about 2 minutes it,lol be good. At that moment with a hefty soft face blow, an almighty snap was to be heard. Mission accomplished without damage. Pure genius

[@whatsupshittafabraans1926]

Wasn’t as they say normal procedure or in any manual

[@adventuretimephotos2423]

I feel that this is an anomaly. It’s a fair assumption to make that if you can’t type a simple sentence with correct spelling and grammar, you are likely also sub par in all areas of intelligence and education. There’s a reason doctors , engineers, and scientists can all read and write.

[@DrakeN-ow1im]

@@adventuretimephotos2423 What you 'feel' is irrelevant, and your 'fair assumption' is based on narrow thinking. There have been, as I wrote previously, several cases of brilliant practical work being conducted by people with literacy difficulties and many more in areas of administration and creativity who have numeracy shortcomings. Sir Richard Branson is dyslexic, for example.

[@scroungasworkshop4663]

Those last comments were spot on. In 2020 we were travelling at 80km/h and were hit head on. The two people in the car that hit us were killed, their car only had one airbag that failed to deploy. According to the doctors, we came very close to being killed as well but thankfully every one of the safety devices fitted to our car deployed. I doubt there was even much for the wreckers to use as the damage to our ute was so bad I had to be cut out of the wreck, the engine and transmission were pushed back under the car and even the rear quarters were crumpled above the wheel arches. This is where that split second timing you mentioned is so critical and is one of the reasons, as mentioned in previous comments, I will never fit a bull bar to our replacement car, a Land Cruiser. Having a relatively minor accident that deployed the airbags is irrelevant because it doesn’t mean they deployed at precisely the right time. At 80km/h I would suggest that the deployment comes down to 100ths of a second to be of maximum benefit. Cheers Stuart.

[@lz1bdx]

God bless you Mr. Cadogan. Thank you for being with us and shine the light where it never shines up the corporate cavities. Amen brother! Long days and pleasant nights..

[@tonegeerkins491]

On Bullbars.. it seems to me that a significant aspect of their liklihood to worsen the effects of collisions is that they generally raise the height of an impact. If you run a commodor into a comodore they will hit "bumper to bumper", but..replace one of them with the 4x4 with the lift kit and Bullbars, and now the Commador goes under, and the Bullbar is around head height. If your unlucky enough to be "T boned" it might be that the Airbag sensors are not triggered, and theres just side window glass between your melon and the heavy guage Bullbar. I am sure I have heard some clain that accidents involving 4x4 are.some order of magnitude more likely to involve serious injury. Also, some ppl cite "greater safety" as a reason to purchase a large vehicle.. seems to me that the safety thing is somewhat one sided! If you smash a 1 tonne vehicle into a 2 tomme vehicle surely the lighter.on will catch more damage!

[@kiwidiesel]

Many diesels employ piston cooling in the form of oil squirters aimed at the underside of the piston hoseing oil like a fire hose under pressure. The underside of the piton is also specially grooved to spread this oil over the entire crown. This applies to all heavy diesel engines and many light diesels.

[@aussiebloke609]

A fair number of petrol engines do the same, especially if they were designed to be boosted from the factory.

[@LordandGodofYouTube]

You should get a sponsorship from Grammarly John, seems like it would be helpful to some of your viewers.

[@Ibrahimshekari]

I watch your videos and love the way you explain everything, I wasn't too passionate about mechanical engineering but I kinda regret studying civil engineering after starting to watch your videos. Also, I would like to thank you as I have learnt so much from your channel ( both English day to day language as I'm still learning, and physics). Keep up the good work John 👍

[@mahcooharper9577]

I love the Beer Garden, I know you put them all out as a podcast but I find half of them crash my podcast player. Never gets old in any case, always learn something. Thanks John.

[@schrenk-d]

Thank fuck I had great science and maths teachers. I sadly didn't have a great English teacher. However, I have made many improvements in how I write and speak. And to top that off, I enjoy learning so much I have never stopped. Never stop learning, people.

[@TonyRule]

I failed School Certificate English in '87 - 44%. Yet I despair at the state of modern written communications. That's how far standards have fallen.

[@dougstubbs9637]

Thank fuck we can say fuck in this fuckin comment fuckin section.

[@attilajuhasz2526]

@@TonyRuleTony, I must agree with you. Sadly, some native speakers are so complacent that they expect the reader to "just understand" all their lazily composed prose; despite all its spelling and grammatical errors, confused syntax and misused words.

[@TonyRule]

@@attilajuhasz2526 Some even have the gall to claim they knew the errors were made but, since it's an informal forum, they just didn't bother to write properly. As if anyone's going to believe they actually made an effort to write poorly, when they could have just effortlessly done that which they claim to know.

[@DanWallis86]

Thanks John. Second time getting a shoutout. Yes!!! I thought you were going to rip me a new one for punctuality. Love your work John.

[@desetmedia]

Holly mackerel John 😂 Did you get up on the wrong side of the bed this morning? 🤣 Locked and loaded, firing on all cylinders and taking no prisoners. Awesome stuff 👍🏼

[@Iwishiwasflying]

This has been mentioned in the post by GB Sailing. John has also made a comment re the same.

[@jeancaetan9124]

I thoroughly enjoyed this John. Stewie is certainly the gift that keeps on giving. Was he confusing the word accelerator with accelerometer by any chance?

[@seanworkman431]

We are not sure Jean but do let us know if he asks you for an explanation of what he wrote!!!!

[@awakenotwoke1973]

One would hope.

[@hoyks1]

Re: Bull Bars, BHP did some crash testing of them. I can point you at a report that came out of it. BHP stopped fitting bars to vehicles as a result.

[@AutoExpertJC]

That would be interesting: [e-mail]

[@harryworth8527]

Hi John, I always enjoy your banter, very amusing. On the subject of bull bars, I found this interesting warning sticker inside my Toyota owners manual and also inside the glove box, it says the following; Warning: Toyota strongly recommends: If you fit a Bull Bar, fit a a Toyota Genuine Accessory Bull Bar specified or approved for this exact model and grade. Toyota warns: (1) A non-Genuine Accessory Bull Bar; (2) A Toyota Genuine Accessory Bull Bar; or (3) An attachment to the front of the vehicle or Bull Bar (eg. winch, tow bar or other rigid structure) not specified or approved for this exact model and grade may: (1) Reduce occupant safety (2) Result in non-compliance with ADR 69/00 Frontal Impact Requirements: and (3) Interfere with proper operation of the SRS Air Bag. So I have a genuine Toyota accessory bull bar fitted with no other items attached to it. That is to say no spot lights, no winch etc. Where I get confused is that they (they = the faceless men of greed) say fit a Toyota genuine bull bar, then the fitment of the said genuine article is listed in item 2 of the warning. On the one hand I feel confident that the genuine accessory won't interfere with SRS deployment, then on the other hand it seems Toyota have provided a loop hole for themselves. At least I don't have an ARB (ARB = Arsehole Robbing Bastards) bull bar fitted.

[@petesmitt]

If you want to fit a bull bar for either a new or used car registered in NSW, it must comply with the ‘Technical Specification: Requirements for vehicle frontal protections systems fitted to light vehicles’.

[@Garage-uj7pv]

I live for the response-read in Bogan voice. Thanks Browneye!

[@LordandGodofYouTube]

Whenever I watch these videos I always hope that one day I too can make a comment that is unhinged enough that John can roast me too. I'm still chasing that dream 😐

[@AutoExpertJC]

You probably don't have what it takes...

[@seanworkman431]

I have got dramatically close but never a full blown roasting, of course I would be far too embarrassed were I to suggest a link between ABS and airbag deployment.

[@masterq2.033]

Piston crowns and skirt areas above 1st compression ring are often coated with a thin layer of very low heat convection material. A bit like a heat shield. Also it's common in diesels to have oil jets continously dousing the underside of the piston crown with relatively cool oil.

[@YZJB]

When the EGTs started to creep towards 900 degrees C, that is when we started to worry about potential damage to the vanes of the variable geometry turbo. No piston damage at this point. No cylinder head damage. But the turbo didn’t love it. This is in 1.5L Mazda2 Skyactiv Diesel engines we race. All-alloy engines, standard internals…

[@LiquidAudio]

Critical thinking, logic and science, providing the answers as always. Two non-emoji thumbs up from an ex-science teacher and non caravaner who really appreciates your work.

[@Tiilhouse]

Good timing, just knocked off and needed a good video to unwind to

[@AutoExpertJC]

Pleased to be of use...

[@Tiilhouse]

@@AutoExpertJC it was both entertaining and educational.

[@Charlie-po5ni]

The turbo temp in my 600 Cummins gets up to over 650c, and that never melted a piston in 2 million kms

[@BobHutton]

English dictionaries tend to document the meanings of words according to their popular usage. (Unlike French dictionaries, I gather, that tend to be more proscriptive). There can be a problem with looking up the definition of a scientific terms in an English dictionary, in that popular usage may differ from the definition used by scientists. ("Evolution" being a case in point). However, with the term "thermodynamics", there is a big clue in the name itself. The "thermo" part means (somewhat uncontroversially, I would think) heat. The term "dynamics" tends to relate to systems in motion or undergoing change. (Although I will concede that etymologically it comes from a Greek word meaning power). If scientists were restricting their study of heat flow, work, temperature etc to systems in equilibrium, I would have thought they would have called it something like "thermostatics".

[@jeancaetan9124]

So looking forward to this.

[@donfinch862]

Ever seen the movie Idiocracy? (I only saw a little bit before I ran away). It's happening. Comments, flat earth, Kardashians, wokes, genders, the list goes on. I'm sad. Beer o'clock I reckon

[@bentullett6068]

I saw something regarding Costco on a Fox news YT feed and I had to respond to it with the welcome to Costco I love you part from that movie.

[@attilajuhasz2526]

Don't just give up (re beer o'clock). Whenever you get the opportunity, "shine a light" on it and criticise it intensity!

[@johnnumbat9782]

You have a captive audience here John - great to have some balance between the two hemispheres - one for the everyday engineering lectures and the other with passion for the opposite gender - girls and later women were a mystery to me during my courting years and still remain so into my senior years 🙃 - I have an avionics background and a bit nerdy where I would give lectures on the Apollo Space program in the early 70’s in high school VIC - my science teacher loved it as I scribbled jet propulsion figures and lunar landing procedures on the blackboard but I eventually realised I’d lost my main audience when I could hear snoring behind me - viva le Subaru.

[@deSloleye]

@John Cadogan the Mr T version of the ideal gas law is a valid version with only one reliable use I know of. As a third year engineering student I was taught this with R being converted to mass using the average molar mass of air. It was only used for air cycles like the Brayton cycle. So it's a valid, but not a general, expression of the law. It didn't seem to matter what version I used, I was frantically working through unit calculations to make sure I was using the right formula and gas constant every assignment and exam. It's a good formative experience for every engineer to check their work!

[@attilajuhasz2526]

Maybe. However, these calculations pertain to gases, not liquids.

[@deSloleye]

@@attilajuhasz2526 that remains true

[@zakuraayame5091]

from what I understand, gasoline doesn't burn long enough and therefore the pressure of the event only lasts maybe a quarter of the downstroke instead of half way (90 past tdc) where the leverage of the mechanics are maximized (and past that risk of breakage increases); this is not the only reason, but one of the reasons why nitromethane is used in the drag cars and tractor pulls, it burns slower. If I listened to them correctly (and they were correct), it also makes their exhaust that loud and when they get it wrong and too much hasn't burned off towards the end, you get quite a visual spectacle when the rest of it ignites and helps divorce parts of the block from itself with vigor and excitement. (so if you could find a way to make the ignition event with gasoline to provide useful pressure against the piston head up to 90 degrees past top dead center; you would get more power which I will assume could also lead to better overall efficiency and fuel mileage by intelligent engineers) and if I've completely misunderstood, please inform :)

[@more.power.]

JC love your work perhaps some of your KZbin followers should stick to reading the Woman's weekly subscription. Thank you for making sense of the bull shit.

[@davidwild66]

My daughter has just got her drivers licence. How about a video or two on very basic maintenance/safety, such as why you don't take the radiator cap off when the engine is hot, and why you wait a bit to test the oil level on the dipstick after turning the engine off? Kids might be more willing to listen to you than their parents.

[@TonyRule]

I actually had to change a wheel for a nearly 60 y.o. 'man' the other week because he didn't know how. I wish I was joking.

[@herohoistsaustralia4502]

How about a radiator cap that COULDN'T be removed until a safer coolant temperature was reached? I reckon that would be pretty easy to engineer? Maybe some up-market cars have this already?

[@TonyRule]

@@herohoistsaustralia4502 I don't want or need that. And there are enough stupid people in the world already - I say no further measures to preserve them and save them from themselves.

[@chrisblood7395]

Thank you - again - for another enlightening and highly amusing post. Honestly, I don't know which I enjoy more; being enlightened/educated on subjects that my education didn't stress (Civil Engineer), or listening to the... bloviating of the unwashed/uneducated people who presume to correct you. Honestly; I thought the modern American education system was bad, but... wow. And, those are the ones who actually manage to post something successfully on the Internet... Anyhow, keep up the good work...👍👍

[@michelswerissen6544]

Three pen taps,two paper scrunching,one paper throw and dunk,video approved,thanks John,click.

[@koitorob]

My last car was cheap because the previous owner spent several months arguing with the council to get his repairs paid for by them due to him driving over a large pot hole in the road. He ended up buying another car and got rid of the damaged one cheap. The pot hole destroyed the side wall of the front tyre and took a chunk out of the wheel rim and left the same side rear tyre with a large bulge in the side. The shock was severe enough to deploy the driver's seat airbag. Maybe you could explain why in the event of an airbag 'going off' Seat, in their wisdom, decided it would be a hoot to switch off the power to the electric power steering? The sane reason behind this eludes me! It was a 2005 Seat Ibiza.

[@leighdonald3112]

One of MY favourite things to (attempt) to explain the phenomenon you have so eloquently described is the Candle theory, IE would you suffer a significant burn if you placed your palm over the flame of a lit candle, and why then doesn't then the candle (wax) just melt away to nothing given the heat of the flame is MUCH higher than the melting point of the candle's wax.

[@harrygatto]

Accellent presentation.

[@David_Johnson_]

Never mind about whether bullbars help/hinder the occupants of the vehicle to which it is fitted, think about the potential extra damage they cause to whatever they hit. Imagine whichever 4WD crew cab ute you choose with a bullbar on it t-boning a Corolla with your Mrs and kids in it. What extra damage do you reckon that's going to do to the Corolla and your family? I'm sure they'll be comforted knowing that old mate in his Dingo Piss Creek Special feels more protected whilst they see as their lives flash before their eyes the shiny alloy bar coming for them at head height.

[@legend7ify]

Dear John, love your work. Your desire for more hate mail should be rewarded shortly. Constant laughter from your entertaining portrayals pleases me. Then, disappointment with my fellow man's understanding of basic principals of their education, sadly distresses me. Malcolm, F. N. Queensland.

[@johnbambo9036]

ANCAP is looking to retro grow, genetically modified trees along all Australian Highways where posted speed is greater than 80. These tress will have naturally occurring Crumple Zones inherent in their growth cycle, Of course this will also mean existing bullbat design will become obsolete. A new Bull bar design with a Honeycomb Kevlar Membrane (HKM) Crumple Zone is being developed to be compatible with the new Tree design. Prototype Tree Testing is occurring outside Auto Expert H/Q.

[@FuManchu5ltr]

This and FullBoost are the best feedback sessions on KZbin

[@davidcollins2258]

This and the related video were great John! A few things could be going on with the Triton/Hilux comparison. (1) Triton may be doing more work even at the same speed/weight/load up the hill due to aerodynamics and rolling resistance difference - more work, more power, more heat. IIRC drag is proportional to velocity squared? (2) Even if they are doing the same work, a hilux may be more thermally efficient in that operating range e.g. Work to the wheels vs fuel burnt. Less fuel burnt, less heat. (3) They may both be doing the same work and have same thermal efficiency but the hilux may just have a larger cooling system but as you said with 20 to 30 degrees safety margin who cares? You could even argue that the Triton's cooling system is a more optimal design - not over engineered. Really interesting topic!

[@pdevonport7266]

It's just John trying to blind you with science again, Toyota Engine is larger and has a lower turbo boost so there is lower cylinder temperature, Mitsubishi runs a higher compression from a higher boost which creates a lot of heat at the expense of work done.

[@Nipplator99999999999]

OK that heat transfer, not thermodynamic caught me off guard... I have exceeded the face-palm safety limit with the whole new level of spectacular specialist... I missed my own forehead and have a rapidly darkening black eye, this isn't the issue, but that is nobody is going to believe me about who did it.

[@AutoExpertJC]

I gave up facepalms several years ago. It was a 'personal safety' consideration...

[@SpasmGazm]

It's literally right there in the word thermo(heat)dynamics(movement)

[@Nipplator99999999999]

@@AutoExpertJC I thought that I had done so also... Thankfully I just sat down the hammer I was using when you started that entry.

[@westaussie9497]

Thank Q. For your " Beer Garden" talks.

[@terryjohnsen1689]

Bullbars are just expensive, heavy, painted or highly polished pieces of garnish mounted to the front of the car. Of course they are going to affect the deployment of air bags at the maximally optimum time. The risk of animal strikes disabling the vehicle can be best handled by administrative controls like not driving at dawn, dusk or night, and slowly down in conditions where a clear view of the road ahead is not available. If I was forced to own a bullbar it would be the ARB smart bar made of engineering plastic (ARB bought out the original company who first bought it to market). Relatively light and elastically absorbs the energy of the strike. The fact that one sees so few smart bars shows that most bullbar owners are the opposite. I have concerns with seat covers affecting side airbags that is why I went to seat cover inserts. Yeah, they all proudly state airbag compatible stitching, but again the presence of the side seam of the cover must affect the timing of the side airbag deployment. I have a dashmat because I live in Queensland but I have visions when I'm a passenger of the dashmat walloping me in the head should the airbag deploy. I'd get rid of it if I could.

[@davidbrayshaw3529]

Thank you for a very informative contribution. I was under no illusions as to the potential liabilities of fitting a bull bar on a "modern" vehicle, but I had not once stopped to consider the potential hazards associated with dash mats and car seat covers, the latter two of which I have. Food for thought, cheers.

[@MattBrownbill]

Great vid fella. Wish I had been able to understand more physics at school, but at least these help. :no emoji:

[@studley2436]

Regarding Bull Bars, facts accepted. Given the dangers they present suppose you did a redesign to work with everything else in protecting the occupants. Imagine a very light bar that collapses more easily, so hitting a roo might turn your bar into a throw away job. Of course a bull bar redesign might end up not being dangerous but completely useless for anything except being eye candy.

[@benchapman5247]

"We all get the same vote". Best statement on the internet for 2023. I don't believe it can be bettered. (In context)

[@xr8rick]

As Ford Fairlane, the Rock and Roll Detective, once said, “So many assholes, so few bullets.” 😂

[@c1a2t3a4p5i6l7l8a9r]

Something else to keep in mind about the Pistons in diesels the combustion face of the Piston is made out of a dissembler metal. But this is all moot because if you start your engine and let it sit there for 20 or 30 minutes it doesn't stop running because the engine failed.

[@garynew9637]

How's the drugs working for ya?

[@anvilhammer8562]

I'm glad I found your channel. I enjoy the content.

[@JackiePrime]

You’re a good guy John. Deep down.

[@chrisnewman7281]

Put another way, the heat can’t transfer into the body of the piston as fast as the piston is moving away from the site of combustion. The only way that he can really transfer the piston is via the radiant heat.

[@Trickyaus]

I think chatgpt shall become my AE translator. ;-) Love your work.

[@guyclk]

I always thought a real world example of the latent heat process and a demonstration in general of thermo dynamics ,conservation of energy, was the hand driers in a public toilet. Ever notices the air is always cold at the beginning of use ? and then heat up as the said hands dry? The energy in the stream is diverted to changing the sate of the water from liquid to gas rather transferred to the skin and nerves in your hands.

[@robames1293]

In thought experiments it's too easy to think in terms of "static" conditions rather than "dynamic" conditions which are greatly more complex.

[@davidholmes3323]

I love watching this type of educational footage. Cheers me up before going to work the following day. Their is a plastic bull bar on the market that trumpets the fact that it is the only one that can legally be used in Europe. I have no idea if it is true.

[@djjames6576]

Their, there, they're

[@bentullett6068]

True, the EU and UK have to have plastic bull bars because of pedestrian safety rules. Although I think if you are hit by any pickup truck or large SUV you aren't going to get up and walk away.

[@brad9529]

Apples and Oranges Both fruit. Both are round. Both around the same size. Both grow on trees. Both have great juice. They do have different names and taste different. He's right it is similar to comparing the two.

[@lethalz9]

But my bush basher commodore that ran on water only overheated after about 45 minutes of holding the accelerator flat to the floor through soft sand. And I wasn't towing anything at all! Your "science" is just wrong John. I'm disappointed.

[@stephanburgess654]

Love your videos even though some like today were just going right over my head. I do not understand why people have to question you when you have sat an engineer course and years experience as a motoring reviewer. Me I just like to know what you think of this car and that one at I think is a none bias base. Keep up the great work and look forward to the next video.

[@farken7467]

I've learnt more about physics from you John than from my boring as batshit science teacher at high school many moons ago. I'm certain he could bore an arsehole in a wooden horse even today. On another note. I still struggle with the caravan thing. They make absolutely no sense to me. There's nothing pleasurable about them, they don't measure up on the financial side either.

[@rjpbof7221]

For the wooden horse I would suggest an 8mm bit.

[@farken7467]

@@rjpbof7221 yes, I'd agree. Although that would be a tight orifice. Should we double it to 16mm for good measure? That allows for extra boredom.

[@tonydarby9096]

Not sure about Australia, but in UK fitting a bullbar will likely cost you a ton in higher insurance costs. You might not even get insurance.

[@dangerdave7223]

Not here

[@MrButtonpresser]

Bravo! Highly entertaining. I wonder if some comments are deliberately provocative in order to get your attention and response.

[@garynew9637]

Some seem inexplicably stupid.

[@gregy1194]

The closing of this video was "gold". 🤣🤣🤣🤣🤣🤣🤣

[@wizzyno1566]

Surely the "dynamics" in "thermodynamics" gives away that it's not just about static heat systems?

[@StuFletch68]

at the end of the day there is no substitute for cubic inches....................oh! and block strength

[@kai990]

Thanks my austrian neighbor. I like ur videos.

[@axle.australian.patriot]

Part 1: I think the commenter may have been a bit confused about exhaust temp and fuel mixture (Air fuel ratio) :) > Thanks, that was actually funny :)

[@RisingSwell]

I feel like when most people say work, they don't mean it in the scientific sense, but rather as a % of the total vehicle potential. If both vehicles require the same amount of power, say 100kw, but one engine has a peak of 150kw and the other 250kw, the weaker engine is using a significantly higher % of it's total potential performance. I don't actually know if that makes any difference, or if it does at which point it makes a difference, but I think that is what people tend to mean. Outside of this youtube channel, Engineering Explained, and grade 11 physics, I've never heard anyone refer to work as the very specific amount of power required to do something.

[@AutoExpertJC]

'Work' has a pretty specific meaning. In any case I clarified what I meant and explained that the energy and power to carry a fixed mass at a constant speed, up a 'control' hill are identical. There are all kinds of metrics to cover how 'hard' or efficiently particular engines are working: BSFC, BMEP, specific power output, volumetric efficiency, etc. This is why it's important to use the right words. If 'how hard the engine is working' means 'what percentage of peak power is that power output?' then, yeah, the Triton is 'working harder'.

[@grantleyhughes]

God I love these comment rebuffs. Gold!!!

[@gbsailing9436]

Don't forget that the underneath of pistons are cooled by jets of oil spraying to the underneath surface, John.

[@AutoExpertJC]

I mentioned the oil. Try to keep up.

[@philhealey4443]

Yes, sometimes with a range of jet sizes matched to output rating, but omission on low power variants . Mercedes OM 366 being a case in point. Tuners beware when abandoning the conservatism of the original engine design.

[@craigo7235]

And light bars are not legal on the top of the bull-bars ( sorry roo), they must be below bonnet line.

[@sailingcitrinesunset4065]

I've seen an older Ford Ranger with a bullbar T bone another vehicle! Which caused it to roll over and the airbag never deployed.

[@Noah_E]

There are multiple sensors that determine in an airbag deploys and it isn't a straightforward impact = deployment equation. I was in a Corolla hit by a drunk. My car rolled and airbags deployed. I walked away from that crash so they obviously weren't necessary. The same is true for a Cherokee that git hit and shoved in a ditch. No deployment and no injury.

[@martyj1295]

Hey John, thanks for the videos, very informative. Back in the old days we would consider the temperature gauge to indicate cooling system health. If the needle is in the 'usual spot' then all good under the hood. But if it moved off that spot then start to panic because something catastrophic has happened (pump failure, water leak, thermostat, etc.). I wonder if this outdated attitude was part of the supposed shortcomings of the Triton cooling system. Also, could this attitude be a consideration by Toyota engineers in designing the cooling system of the Hilux? As in, oversize the entire system so that the temperature needle never moves to ensure drivers continue to believe the "Unbreakable" line?...

[@YZJB]

Toyota just calibrates the temp gauge to be in the ‘normal’ spot between an enormous temperature range. Like 60-110 degrees C or something so that no one knows if it’s getting hot or running a little cool. They’ve done it like this forever

[@BubblesTheCat1]

Interesting comment by the person that said the Hilux has more power and torque, thus it's not working as hard...What if the Triton is near flat foot acceleration (wot) to go up the hill at the same speed as the Hilux, whilst the Hilux is just at half throttle? The Triton will definitely be working harder than the Hilux, hence the higher coolant temperature.

[@daviddaw999]

John, quite apart from your casting your pearls of knowledge, largely before swine so it would seem, what makes your output so enjoyable to watch is your comic genius in these episodes about the comments you receive. Please keep it up as these are dark days in the UK and anything that makes us chuckle is highly valuable..

[@TheKnobCalledTone.]

After hearing Davo's hypothesis about the Triton working harder than the Hilux (starts 16:58), and you gently correcting him by rightfully stating that both vehicles' engines would generate the same amount of power to ascend the hypothetical hill ceteris paribus, my inference is that what Davo actually means is that as a percentage of their respective overall power outputs, the Triton is running closer to its limit than the Hilux. I'm not suggesting that Davo's hypothesis is correct, nor am I suggesting that my interpretation is anything other than fodder for the next I Can't Believe It's Not Nut Fest Friday. However it *is* the sort of thing older beard-strokers tend to say when claiming that small engines wear out quicker than large engines in the context of motor vehicles.

[@TonyRule]

The Hilux may simply be more thermally efficient at the particular engine speed and load to produce the same power too. It may just have a larger capacity cooling system which reduces the rate of rise of temperature. There are so many variables.

[@dougstubbs9637]

It could be the Hilux is indestructible, and a triton is the dog who wants to lay up on the porch with the big mongrel Toyotas.

[@attilajuhasz2526]

Tone, I was thinking the same thing. Perhaps the original comment was regarding the comparison of one's capacity to do work compared with that of the other. The two ideas are conflated and the resulting comment comes across as uneducated. Rather, it's an example of bad communication.

[@dragancrnogorac3851]

Bolting thing in the front of the car should be illegal... Like it's illegal here in Europe... People walk around, stop killing them

[@Noah_E]

Maybe pedestrians should walk somewhere other than the path of traffic? You can call it a sidewalk, shoulder, or pathway, and you can have designated areas called crosswalks for when they cross the paths for everyone else? Has Europe tried that yet?

[@royblackburn1163]

@Noah E Full of lame brains here in the UK, many also get hit by trains, they run on rails and are painted bright yellow at the front , can't be easy because on average they run 10 minutes late so they must have to wait . Don't see a great deal of difference between bull bars , motorcycles and lorrys. Speed is the main factor in my opinion.

[@dragancrnogorac3851]

@@Noah_E naah we push padestrians with snow plow

[@zakuraayame5091]

I think people forget the air around them is a fluid because they conflate the meanings of the words 'fluid' and 'liquid'; at least that is my strongman argument for them.

[@FuManchu5ltr]

Pretty sure if there was any practical outcomes to Browneye’s theory, the entire Burnout circuit would not be happening. Fricken batshit crazy abuse on various alloy LS V8 (some iron blocks, alloy heads) and they do fine.

[@dougstubbs9637]

5:50. Piston broke…..describing my life.

[@timeastman2260]

John love ya work. Please could you please comment on 3 (in my opinion very dangerous road safety problems) 1. Really crappy modern headlights. 2. The obsession with HUD and the really bad reflections caused by the unit it sits in (like my 2022 CX5) turning down the display still leaves the frame reflection so its like looking through a picture frame. And 3. The stupid reliance on the infotainment screen that allows you to take your eyes off the road to fiddle with any and all things at any speed, and we know how stupid drivers are. Thanks

[@Shanes_Shed]

I would very much like to see ANCAP do a crash test of a vehicle with a bull bar fitted. Somehow I doubt ARB will volunteer to take part

[@totallybogus313]

You forgot to allow for wind chill factor.

[@nigelcox1451]

But, after a crash, it is an Ex-celerator, as it will be of no further use.

[@grantlouw3182]

Where would a piss ceekian mount the winch, antennas, lights etc if they had no bullbar?

[@bobahyess]

Hi John, loving you videos mate, keep up the good work! One question regarding bullbars though. What about genuine bullbars fitted at the dealership before delivery is taken? Would getting one of these also compromise the effectiveness of the airbags?

[@AutoExpertJC]

Yes. Most probably. I've never seen a manufacturer crash test a bullbar equipped vehicle.

[@shellez101]

Did I miss the paper scrunching ?

[@foppo100]

The piston hasn't got time to burn if that makes sense.And the oil will help thanks John.Whoever invented this shit is clever.I admire the engineers who keep it simple and make it work don't overcomplicate and it all goes to ratshit.

[@alklapaxida850]

i am full of joy knowing that i live in the land of "nuffys"

[@goldfools5445]

I laugh, while living in fear that my name isn’t called.

[@CrapToCream]

Good morning John, So my question from yesterday still remains unanswered, unusual for you, you usually pick out the odd or different questions or queries, waterless coolants, where are you on this one? Good bad or indifferent? Go John Go...

[@AutoExpertJC]

Pretend there are hundreds of comments, tweets and e-mails, and my main gig is making content, not reading what people say about it...

[@CrapToCream]

@@AutoExpertJC I'm asking you a question John, I would appreciate your opinion on waterless coolant, I'm contemplating heading down this route with a classic car I'm rebuilding, thas is all.

[@Aljosja90]

Hi John, big fan of your show the past years, even from as far as the Netherlands. Following this discussion with great interest, and there's one aspect I feel hasn't gotten attention so far: namely the gears the gentleman comparing the Hilux against the Triton chooses when complaining about the Triton running hotter. These utes are not sold over here, but as far as I saw the Triton probably has a manual gearbox, right? Could it simply be the Triton has a lower gear ratio, and the gentleman is just running too high a gear for the speed going uphill? I've seen some inexperienced drivers over here hammering their petrol engines in the mountains going full throttle with 2000 or fewer revs overheating their engines. My understanding has always been this has to do with both the engine being less efficient at too low revs (thus turning more of the petrol's energy into heat instead of useful work), plus the waterpump running slower at lower revs so the cooling system has actually less capacity. Maybe this is different for diesel engines, I don't know. But just curious if my feeling about this has been right, ans could therefore play a role. Maybe even the gear ratios of the Triton are smaller than those of the Hilux, leading to lower revs at the comparison speed and therefore possibly slightly higher temperatures?

[@tigertiger1699]

You’re very patient with the nuts… Who the f makes statements on stuff they don’t know

[@TonyRule]

The same people that claim learning the theory behind what you're seeing doesn't matter.

[@tigertiger1699]

@@TonyRule … one teacher I kind of rate?? told me that you don’t need to know a subject to teach it…, they may be correct.., but I bet it makes a hell of difference to the out comes…

[@pyrobob208]

Politicians and bureaucrats do it for a living.

[@tonywilson8665]

Hi John, a while back you suggested a good read was Hunter S Thompson. Could you please advise the recommended title. Thanks Tony.

[@AutoExpertJC]

Hell's Angels is pretty good, but the piece I was talking about was Midnight on the Coast Highway.

[@stusue9733]

Don't alloy pistons allow you to run higher chamber temps than cast iron pistons? much to the surprise of the people around when alloy pistons were first made.

[@adoreslaurel]

John, i am noticing that the dreaded word "goes" has crept into your vocabulary, Can we please go back to the correct "Sez" [ or says, depending where you went to school].

[@AndrewCastlemaine]

So much to enjoy