There is one more battery cooling tech that I prefer the most between passive air and active liquid/gas - active air cooling. Heated/cooled air blown from HVAC through battery. Pioneer Mitsubishi iMiEV used that. And Hyundai Ioniq also tried this. Works well. I estimate that it is suitable for charge rates up to 100kW - that is medium segment EV.
Hydrogen combustion engine does not work well enough. BMW did already try. "BMW Hydrogen 7". A good try but not possible (ICE efficiency not acceptable).
24:10 no, the actual spark ignition in most cars happens before top dead centre. This is where the term "ignition advance" comes from. However it takes a finite time for the spark to ignite the fuel/air mixture and for combustion to build up maximum pressure in the cylinder, so this build up of pressure (not the spark itself) is happening after top dead centre.
Spark happening before TDC causes pinking noises (pre-ignition) of the cam and long term it will cause engine damage. Power comes after TDC to force the piston down.
@@OverlandTT Not in all cases; although knock occurs when the air fuel mixture combusts before it is supposed to, timing advance is essentially calculated pre ignition that results in more torque than igniting the spark at tdc would.
@@OverlandTT Have you ever set the timing in a car where this can be set by adjusting the distributor or perhaps a car with an aftermaket ECU where a computer is used to change the timing? You will almost certainly have a static advance, which sets the advance Before Top Dead Centre.
The spark happens before TDC because the flame front travels at a pretty much known speed. (it's easy to look up flame speed of various fuels, several online resources) For max torque, the max cylinder pressure needs to occur around 14 degrees after TDC (due to connecting rod length and angularity the exact position varies slightly) Fuel air ratio too lean or too rich can cause problems as the flame front speed and max pressure changes causing knock or lack of power/miss-fire. (or both) A lean F/A ratio or over advanced ignition generally leads to spontaneous combustion instead of a smooth burn with max cylinder pressure happening before or very close to TDC
Very interesting presentation! I used to use Mobil 1 0W-40 (group 3) in my 911 as it is advertised as “full” synthetic, but didn’t know that this wasn’t the same as the label of 100% synthetic which Motul 8100 Xcess is, so made the switch to the group 4 Motul oil. My oil consumption has since gone down 50% after the switch.
Hi! Great to see that you have an interest in the subject! Just one thing - Motul 8100 Xcess is a Group III crude-derived synthetic not Gp IV. Doesn't mean the performance is any less, but they are calling Group III "100% synthetic" under the legal definition. The SDS lists it as "DISTILLATES (PETROLEUM), HYDROTREATED HEAVY PARAFFINIC"
@@LubricationExplained Oh, didn’t know that. Thanks! Guess I have to go to the Motul 300V then! Or maybe the new Non Petroleum oil like the one made by Evolve (EvoSyn).
@@jimstenlund6017 Very true. There’s no guarantee changing to an Ester based oil would increase the life of my engine anyway if the current oil is doing its job.
I know this video is a year old, but I would like your opinion on the possible increased engine wear to the consumer going to thinner oils. IE, a video where you discuss if the consumer was willing to give up the 0.5-1.0 or MPG gain...would using a higher weight oil be "better" tot he consumer (the person who would have to pay for internal engine wear repairs). Many of us understand the manufacture may be using the thinner oil to meet a target MPG or "credit" from the Government and only cares about the engine for it's warranty period.
Agree, engine wear is like a silent killer. Takes a long time and will be safely past warranty when the damage becomes apparent. By then you're at 6-7 years and 150K and oh gee, it's not worth fixing. Wheras maybe a little heavier weight would have allowed for 300K
I went through everything more or less in the sequence you covered it. I was a motorcycle technician but over 50+ years learned a lot about engine design, lubricants and various technologies related to engine performance. Trained as a machinist working to 3~5 micron tolerances Lower viscosity oils require a much better bearing finish and closer bearing tolerances, it's 'relatively' easy for manufacturers but does require better maching equipment which increases cost (a $$3~500,000 machine will need replacing with a $1,500,00 machine ) Removal of ZDDP is mainly driven by automotive industry as catalytic converters are covered for up to 7 years irrespective of mileage and basically manufacturers don't want to pay for replacements. I remember reading optimum ZDDP level is around 1800PPM, much high can cause problems with any bronze bearings or bushings. most engine oils to around 2015 had lowered ZDDP levels to 7~1200PPM I've never liked Castrol engine oils although I used Castrol fork oil in many motorcycles as it works well (although last several years there are oils with better VI index and mainly use Silkolene) As for 'vegatable oils 'Castrol R' castor oil was used a lot for racing. Water based cooling is at least 10x more effective than oil based cooling. Flame speed of hydrogen is phenomenally fast compared to all other conventional fuels and can pretty much be classed as instantaneous (www.sciencedirect.com/topics/engineering/flame-speed)
Amazing video. Just a nerdy-chemist comment. Water (being a nucleophile) doesn’t attack oxygen in waters, but rather it attacks the carboxyl carbon (the electrophile). Again, just a small comment, you are doing a great service with your channel.
GR 8 INFORMATION I'M LEARNING A LOT ABOUT OILS. A QUESTION IS; HAVE A ONAN 4 K GENERATOR FROM 1998. CAN I USE/CHANGE THE 1.6 QTS. WITH WALMART SUPER TECH DIESEL OIL, SAE 15W-40 ? PLEASE LET ME KNOW, THANKS 👍❗.
Hi! I don't specifically know the Onan and don't have the documentation. However, 15W-40 is a very standard Diesel engine oil viscosity so I'd say with 99% certainty that yes, the Walmart product should be fine.
The thumbnail is misleading us in a way that I got curious about how they discovered oil from the Stone Age NVM. Also, u never talked about AMZOIL where they claim the Inventor of Synthetic Lubricants.
From Assyria 3000 BCE , to Petroff 1833 - Hardy 1922 , to Beauchamp Tower and Osborne Reynolds , Lord Reyleigh ,to Dr Herman Zorn of I.G. Farben./ Dr . W.A. Zisman ( NRL ) .
I have read that 0w8 is already being used in Japan is this true. Wouldn't 0w8 be pao based as to not be as junked up in additives as a gtl based oil ?
Interesting question - I’m not sure. I think the VI requirements and the low viscosity put it right in the pocket for GTL but at the same time GTL is in pretty short supply at the moment. But you’re right that it’s already in use.
Modern two stroke oils are just wonderful. No more annual de coking cylinders and unsticking rings. No more burning the carbon out of clogged mufflers and no more being surrounded in smoke as you do a big cut.
A concern I have is it's getting harder to find 10w30 for my 3800 GM cars. Already it's hard to get mobil1 without getting the high mileage stuff. I don't like the idea of seal swellers and conditioners when I'm not leaking oil. I like Mobil 1 and have great results over 30+ years but now I have to use Valvoline and Pennzoil. Which are probably fine but I'd prefer Mobil 1.
honda oil dilution major issues ,and engine knock2017 thru 2022 turbocharged vehs ie,,, cr v , to your knowlege can or does gf 16b fix the issues or help...if you have determined this why has this fix not occourred ???
Pretty sure in japan there's stigma ir laws against older vehicles - less reason to make the engines last very long and with their actually efficient vehicle designs (no massive trucks and SUV's as a grocery getter) they have more to gain from low viscosity.. I think i would rather just.. stick to normal weights, especially in my old volvo 240 car. Interesting question though, with higher viscosity indexes, what viscosity index would be considered a straight number ie: 30 weight. And: synthetic base stocks may be 10w-30 without any additives, correct? Whats the largest viscosity index realistically available from a synthetic vase stock?
How and where do I look to locate engine oils that use PAO base stocks? The US classifies damm near every oil as synthetic. Caveat Emptor is an understatement. I run both medium duty diesels and gasoline motors. Thanks
Great question. Not being US based it’s a little hard to answer. For Mobil - look for “spectrasyn”technology on the label. That’s their marketing name for PAO. For Penzoil and Shell “Pureplus” is their name for GTL (which is pretty close to PAO). “Durasyn” is the Ineos marketing name. Otherwise some of the smaller companies like Ravenol, Torco, Amsoil and Driven are known for full synthetic formulations.
@@trackpackgt877 That's a misstatement. AMSOIL's oils are all 100% synthetic, but only some of them are PAOs (and mPAOs). I just celebrated my 20th year as an independent Dealer.
love this video, i was wondering when you talked about plant based oils, wouldnt manufacturers go back to using castor bean oil as a base if they make that move? its still used but mainly in motorcycles.
They could, but vegetable oils tend to not have high oxidatively stability which limits their lifetime. In two-stroke that isn't so much of a problem obviously.
@@LubricationExplained i see. It would be nice to know about how companies used veg oil as a base. I would love to learn more. Idk if you have a video like that out yet.
I remember way back when dirt track mc racers ran full castor oil but had to drain it out right after a race so that it did not congeal and lockup the engine…. Aahhhhh, history!
Hi, great video, thank you. You say that the GTL process creates Naptha, Diesel and PAO lubricants. Is the Diesel made by this process 'purer' than standard Diesel. Does a proportion of this GTL Diesel make up Shell's own V-Power product?
In the states, fuel is essentially fuel. The base all meets a certain standard for the area in which it's produced and sold, and then brand additives are added when you load it.
Will I have less engine protection with a SP oil than with a SN, because formulation has changed for the usual motor oil that I use. Thanks in advance BimmerN53
When I got my first 5w-30 required car in 1987 it was disturbing how thin it seemed, as my friends had 10w40. Now looking at 0w20 It's like water. It's very concerning the prospect of going to 0w16 or 0w8. I really wonder how much protection these provide and how much is just to make mileage requirements.
preignition (detonation as most of us call it) has always been around. the easiest way to fix it is to lower cylinder pressure or increase octane. everyone know you cant run 10lbs of boost on 87 octane......except the oems.
True, I think the OEMs are just specifically calling out LSPI because it's now a problem in completely stock engines. And it helps to distinguish the problem from standard preignition (which is usually caused by a hotspot on the cylinder wall or glowing spark plug) and detonation (which happens after ignition).
@@bradmcgrath358 we can split hairs all day. low speed preignition, preignition. too much cylinder pressure for the octane. they are pushing these engines too hard and blaming motor oil for their short comings
It's not splitting hairs, it understanding that traditional preignition and LSPI are not the same thing and are not caused by the same conditions. LSPI is only a problem in direct injection engines, it doesn't happen in port injection engines. that in itself should tell you that it's not as simple as you want to believe it to be. The fact is that LSPI is directly caused by higher levels of fuel dilution in the oil which it self is a result of the fact that direct injection engines don't atomise and vaporise the fuel as well as a port injection engine does. That fuel dilution reacts with the calcium and sodium detergents, the result of that is a chemical with a very low octane rating forming in the oil. When the oil is heated to is vaporisation temp, generally when it contacts the under side of the pistons, that chemical is drawn in to the intake through the PCV system, it creates localised extremely low octane areas in the combustion chamber. and that is where the LSPI happens. it has nothing to do with the fuels octane rating or the amount charge pressure.
@@bradmcgrath358 yeah and im sure low tension rings and high compression ratio have nothing to do with fuel dilution. it comes right back to the oem trying to squeeze too much from too little displacement. its not api sm oil thats the problem, its engine design. Doesnt matter anyhow. now we're are stuck with this low detergent, low tbn, low anti wear garbage they call api sp motor oil
One thing Im curious about is how these thinner lubricants interact with various hydraulic systems... cam phasers, hydraulic lash adusters, ect, and how well these thinner lubricants keep their original viscosity over time.
@@joeblowe7545 You are absolutely right, but that doesnt necessarily mean no effect. Oil like all other liquids has viscosity, and therefor effects the bleed rate on the hydaulic system. Even though the liquid doesnt compress, it is continually leaking a small amount past the piston. Maybe this isnt a big deal, maybe it is in certain systems and not others.
With regard to the EV. How often are you expected to change the transmission oil. Are they cars sold on the basis of fill for life. With regard to cooling the battery , power electronics and the motor I thought they use a water glycol coolant on the basis of safety (non flammable in case of thermal run aways ). Would be grateful to know the name of the organic product used by Porsche / Audi. Thank you.
I think it's unknown at this point (fill for life or not). I suspect the transmission will be changed on a similar interval for ICE cars until more data is collected. As for Porsche, I don't know the exact product, but given that Mobil and Porsche have a technical partnership it is likely to be Mobil EV Cool. I think from memory that one is a PAO-type.
As an avid motorcycle rider of both air cooled bmw vintage and modern liquid cooled single and multi cylinder v twin liquid suzuki 650 cc engines what is my best choice of lubricants to reduce wear to a minimum. Bike vary from single cylinder xt 660z tenere to dl suzuki 650 vstrom v twins. What api ratings should I be looking for. They all use the same oil except for the bmw in the the transmission as the engine. Thank you in advance for your knowledgable advice. Cheers from sunny South Africa pepe
Stalk about shell rotella White botle.. 15w40. Ci4 sl....only the full sync is Best then it...but if you change the rottella more often they fight ver evenly
The EGR is the worst invention in the world causes so many problems in direct injection vehicles and the old Ford 6.0 diesel engine! And that's just the ones I know of awesome video though brother
6.0 itself wasn't the issue. Penny pinching engineers were. 03-early 04 egr cooler was better than later versions. The first hpo system was better save for aluminum body pump, the late 04 up hpo system had a better pump but the stand pipes and dummy plugs were an issue. Navistar did a poor job cleaning casting sand from the blocks, which in turn caused untold oil cooler failures, which resulted in ruptured egr coolers. There's also poor quality control in casting the heads and lack of quality machining. The issues are easily addressed, and then it's a phenomenal motor.
@@bad05ford I have a chance to buy a 03 6.0 four-wheel drive 6-speed manual nice truck but it's never been bulletproofed never had anything done and it's approaching 100,000 miles pretty leery of it can't decide if I want to take the risk or not those 6.0's had so many problems the head studs worry me the most because this is a stock truck and I want to put a chip in it
@trackpackgt877 My truck has around 210k. Small turbo upgraded exhaust and ficm tune. Stock head bolts and runs great. Tourqe Pro and a veepeak adapter for monitoring with an android phone or dashboss for Apple. Now, on "bulletproof," it's an abused term started by a company that thinks they own that phrase. Most of these trucks do fine without major work. Maintenance is a key factor. While oil brands are highly debated, I run amsoil signature series 10w30, filter changes at 5k oil changes at 10k. Used oil analysis always comes back good and run longer, but I'm good with annual oil changes.
Thanks for your very informative webinar. I have a question on oil specs. I own a Yamaha Roadstar the spec is SG 20w40 .I cannot get that spec I am using a 15w50 4T SN JASO MA 2 would this oil be detrimental to my engine? Kind regards.
The EV wave while maybe 6% of all sales will only persist as long as there are subsidies. Let the market decide without government largesse and we'll see how popular they really are. And don't try to tell me oil is subsidized. What the uninformed call subsidies is really tax deductions available to every business down to the corner mom and pop coffee shop.
