Wet Sump Vs Dry Sump - Engine Oil Systems

[@invisibleaznDJ]

this channel is going to be responsible for a whole generation of engineers (of all kinds and walks of life). I can't wait to be a benefactor (consumer) of all their amazing ideas. Thx EE

[@EngineeringExplained]

Ha, if it inspires a few that'd be amazing! :)

[@legendarynikoproyou4569]

Engineering Explained uu you know I've been watching your videos for over a year if not more and I've learned a lot thanks

[@nickp460]

@Engineering Explained, I can tell you for sure that you are! I'm a first year mechanical engineering student wanting to go into the automotive field. Your videos are extremely encouraging as they really dive into exactly the stuff I want to learn more about. Thanks for taking the time to do these!

[@metaomicron72]

I might be one of those since I'm taking Electromechanical Engineering. (Please kill me and dont take this degree!)

[@chriscarlson4789]

done

[@tomo55554]

Been subbed for 3 years now and he still amazes me with how good his videos are.

[@EngineeringExplained]

Thanks for sticking around for so long! :) Let's make it three more!

[@tomo55554]

Engineering Explained Absolutely! happy to support someone who puts so much effort into their videos

[@brynfisher7334]

Engineering Explained does this mean your going to stop after three more years? Where will I learn then?

[@gabrielwhite3890]

well it's 3 more now

[@klam77]

Extremely clearly explained! thanks. was reading how dry sump leads to "better cornering"....couldn't connect in my mind HOW. You made it very clear.

[@epictacero]

Don't worry EE I don't think the hell cat is going to be doing hard G's in a turn lol

[@herculesrockefeller2984]

Yeah I was wondering why the hellcat had a dry sump.. The only hard g's in that thing are taken when the owner plows through the exit ramp guard rail after drag racing on the highway

[@MsSomeonenew]

Unless you hit something...

[@cutthroat795]

Hercules Rockefeller it has a wet sump engine...

[@herculesrockefeller2984]

cutthroat795 oops, I thought they said dry. wet makes sense

[@owcarnia]

unles you're doing a friggin' long skid ?

[@d0718]

My car has a dry sump system and for some reason this video made me so proud of it

[@d0718]

***** bought my car this year, so haven't yet had to change oil So yet to discover all the differences But I assume since you have two reservoirs of oil, wouldn't you have to drain oil from both and then fill just the second (the tall one) reservoir?

[@mathiasmang848]

Dmitry L what car is it?

[@JakeG895]

what car do you have

[@d0718]

Mathias Mang Porsche Cayman

[@mathiasmang848]

Nice! The new model?

[@HKPiax]

This channel is so helpful. I've always been interested in engines and related stuff, but I've always told myself "it's too complicated". Now, thanks to this dude that makes stuff so clear, when I start studying something that I've already understood in a general sense, the whole process becomes WAY easier. Thanks dude, for real.

[@brighterthanlightning5999]

One of my favorite things to do is learn new things which is why I especially love this channel, always great and up to date content.

[@EngineeringExplained]

Thanks!!

[@brighterthanlightning5999]

You're very welcome, I'm curious why the overall design of a rear end on most RWD vehicles hasn't changed in a long time. If you look at Model T's from a long time ago, they also had ring and pinion rear ends. I'm very curious why there isn't a new and better way to transmit the power, it seems primitive​ to me that modern cars still use the same overall design. Do you know why that is?

[@andrewfayi9448]

Amazing! Straight to the point and really helped me understand why cars like the Porsche 959 use dry sump. This will help me with my extended essay for IB.

[@ImTonyWalker]

Nice video, as usual! You also get a small horsepower gain from the crank case being run under vacuum. The total horsepower gain from a dry sump system is tiny though and mainly done for weight balance and oil supply.

[@NickMurray]

Great video

[@K1dPhresh1]

Thanks for your awesome vids. I've considered myself a "car guy" since I can remember but never understood a lot about how they tick internally. Now I can nerd out on automotives in my spare time. Keep 'em coming!

[@EngineeringExplained]

Thanks for watching!

[@K1dPhresh1]

Engineering Explained funny, I watched your video this morning. This afternoon, scrolling thru my News app on my iPhone, I coincidentally find an article by Road and Track on the same subject. I read thru the 3 short paragraphs only to find a thumbnail of your video. I certainly hope you are being compensated.

[@ebrainz101]

There are many more benefits to dry sump than avoiding "sloshing", also known as windage. First of all, a well-designed dry sump will pull a vacuum in the crank case. This not only reduces pumping losses, but makes the rings seat better. In built motors, this means you can run "looser" rings (smaller diameter) which frees up power normally lost in piston friction. Dry sump pumps also allow the engine builder to tune their oil pressure needs to RPM better with pulley size changes, and as was mentioned, offer much better control over the temperature in the oil system.

[@MassiveOverkill]

Would have liked to see an explanation on checking dry sump oil levels as it's a bit more complex than your wet sump system we're all used to.

[@JamesDoylesGarage]

I think its great that Pennzoil will sponsor this channel. It's much appreciated education and frankly if I need oil, why not patronize the guys that help us all with knowledge we enjoy. Thanks Pennzoil.

[@exodeus7959]

Glad BETO found a better way to educate the masses. This is a much better use of my time. Thanks.

[@qmcqueen2429]

Even years later I always find a cool video you did that’ll teach me something. Thanks man you’re the best!

[@jeanherrera2652]

A couple years back i knew nothing about cars or the amazing mechanics that drive then I stumbled onto your channel and it changed all that. For all this knowledge i have to thank you it has made working on my car and motorcycle a lot easier.

[@tylerstoner-realtor]

Had a cool idea for a video! With winter being here, I think a video showing how increasing your tires to taller ones change up the final drive and also distort speedometer readings and the science behind it all! Hope this was helpful! Keep up the great work.

[@dchall8052]

I recently purchased a C6 Corvette Z06 which has a dry sump. This video explained the advantages perfectly.

[@charlesmiller6281]

Wet or dry, sump oil is extremely frothy from being whipped around by the crank, con rods, etc. so a major dry sump advantage is removing this air in order to create an unbroken stream of oil. The importance of this is such that as Porsche has reduced reservoir volume to save weight they made up for this with centrifugal oil reservoirs that draw clean oil from the outside of the centrifuge. They also use several electric oil pumps both for energy savings and to allow independent oil flow and pressure to different engine areas. Porsche electric oil pumps activate before engine cranking, eliminating dry cranking, another major benefit. But, we maybe shouldn't mention that. After all Porsche runs Mobil-1.

[@syedzgaming]

I was expecting to see haters comment about promoting pennzoil..being a sellout etc etc.thankfullt common sense prevailed. Guys gotto eat and this is a very informative channel.

[@malte_volkerson]

dry sump is actually very common on motorcycle engines. especially when it comes to offroad vehicles, where it's an everyday thing for a bike to be laying flat on the ground still running. KTM even builds this system called 'semi-dry-sump' where the gearbox effectively is the oil reservoir. I never knew there where cars using that system. Thanks for explaining the pro's (besides beeing able to wheel for like 5 miles straight =) of dry sump systems so very understandable.

[@Likeaworm]

Everyone loves the ls7 and puts in it their sand rails and trucks for this reason.

[@DENicholsAutoBravado]

EE, thanks for that explanation. I have a dry sump system on my old 89 Yamaha XT600. I didn't realize why they did it until your video. Lower center of gravity for the engine/more clearance since it is a dual sporting, or off-road with street mixed vehicle. Of course, that's just having the engine lower, or higher for the ground clearance - yes that CG is better, but all the oil in the dry sump is up under the seat, so it's pretty high on the bike! LOL. Still, a lot of bikes don't have something opposing the exhaust for weight, so this helps with the motorcycles balance.

[@vistakay]

Even with dry sump can bikes handle 5 minutes of wheelies? I've seen riders keep a wheelie going for minutes on end and I've always wondered if they run out of oil

[@keithwilliams6007]

There's also a benefit to dry sump for pumping losses since the piston seals will be better and the pistons themselves are "working less" against the lower ambient pressures of dry sump crank cases. In summary, for modern engines under fully electronic control, the SOLE benefit wet sump systems have is reduced cost.

[@milespayneful]

Never heard of a dry sump, until I bought a used jet ski last week. Makes sense, since in a jet ski, you’d want a low COG, and you may bank the motor at different extreme angles. Thanks!!

[@automotohistory4619]

Excellent explanations and briefings -as always! Keep up the good work!

[@solocamo3654]

Already knew how this worked but enjoyed watching anyways. Thanks as always for the detailed video.

[@SulCoCrazy]

What is your take on inverted aircraft engines? Typically they use a dry sump system and the idea is that the oil would be circulated evenly throughout the engine so that the oil properly lubricates without becoming saturated in one cylinder which would result in a hydraulic blowout and catastrophic engine failure. Keep in mind those engines the oil pan is located above the cylinders and valvetrain.

[@flyguygabe5]

As always professor, so eloquently spoken while being ready to comprehend. 👌🏽

[@Rentta]

You can always add slosh plates to wet sump to avoid engine running dry.

[@TheChannel1978]

yes, aka as baffle plates or baffles. Essential mod for most track driven car

[@Rentta]

Indeed. There are even track ready oil pans with some interesting designs available for most of the popular track day cars.

[@ebrainz101]

Still not as effective as a dry sump.

[@jaydancraven1117]

Matt Bell but wayyy cheaper

[@Hashiriya086]

The other reason you’d gain HP with a dry sump is because you’ll be running a vacuum inside your crankcase. The secondary oil pump usually flows at MUCH higher pressures than the primary, and that causes a vacuum effect that sucks the pistons down

[@richie6921]

This guy is one hell of a good teacher

[@AWSum-uf4ri]

I can tell i am going to learn many things from this channel

[@riding4life52]

Brilliant channel Whenever i wonder about something on my car/bike i go and check it and you never failed to make it clear for me. Thanks and keep it going! :D

[@ZekerWetenNietSamuel]

My bike has a dry sump system, that paired with the fact that is burs quite a lot of oil, it's prefect. One time I forgot to check and top off the oil for a long period and when I did, she chugged 2 liters of 10w40... Still running like a champ to this day🤷🏻‍♂️

[@Josh-oe4ex]

In a dry sump system, would it not be advantageous to "prime" the pumps BEFORE cranking? I mean, there are the other benefits you mentioned but start up on a normal car is where most of the wear n tear occurs to the bearings. Obviously there's no pressure at the main/rod/etc. With a dry sump you could kick the pump on just 2 seconds before you engage the starter. Bam, you have 40 psi(example) of pressure to handle the initial start up and protect the bearings.

[@nickmpower]

Most are connected by a belt so you have to slip the belt off to do that. An accusump will do what you're talking about though.

[@UndergroundTrev]

I bought a set of Yonaka coil overs after watching your coil over videos and the Yonakas were a disaster! So forgive me if I don't run to the store for Pennzoil for my next oil change. Otherwise, great explanation! Thank you!

[@spacetruckin6555]

I wish you were my science teacher! Thank you!

[@Gasinduced]

Good work getting the corporate support!

[@SahnigReingeloetet]

Two more things. Using a dry sump allows you to funnel it through an oil to air intercooler meaning you can control and stabilize oil temperature, very important for running the engine over a long period of time. And if your crankcase oil pump is strong enough you can pull a vacuum in the crankcase, this reduces stress on the piston rings a little bit, increases hp because you are further reducing crankspeed drag, and it improves oil scavenging in the dry sump. A dry sump also has a greatly increased oil capacity which makes the engine longer lasting in theory (because it dilutes contaminants more, reducing the contaminant count per ml at identical oil service intervals). So you get better lubrication, more reliable lubrication, better cooling, more power (no viscous drag + possibly a crankcase vacuum) and a higher oil capacity. Downsides are it is slightly heavier than a wet sump (added components, more oil), more expensive to manufacture than a wet sump and the oil needs longer to warm up (because of the higher oil capacity and the oil cooling). Dry sump systems are objectively better but history has shown that people can‘t drive dry sump cars. Mercedes used it in some sedans but customers kept complaining that engine needs too much time to warm up.

[@lihongji8864]

Really clear explained. Just learned that my car is a dry sump as a example here, lol.

[@MrZorbatron]

BMW S62 engine is a wet sump system with additional pickups along the periphery of the oil pan. They are automatically used during high G turns.

[@Tully3674]

Terrific, simple explanation. Thanks!

[@miatakhalifa]

Dude you really are so good at explaining things. Just watched a video before this one with some 3D cad model and still didn't get it until I made it like a minute into this one lol.

[@tekpatekpa5298]

awesome basic explanation thanks

[@gtileo]

Powersport vehicles use a dry sump system too, given that they are often bashed around the 4stroke powered toys would run dry fairly often with a wet sump

[@toomanynarcissistshere2102]

One of those genius guys you saw getting bullied in school, and everyone steps-in and makes the bully cry until he begs the genius for forgiveness. Love this guy. :-)

[@athlete35392]

Thoughts on the dry sump system used in the Aston Martin Vulcan? The engineer showed me how simple the setup was and how fast to do an oil change but is it actually feasible? I suggested it would work better for commercial vehicles or marine. Keep up the great work :)

[@irajthebuilder8253]

I’m currently studying to get my pilots license and this was a huge help for my engine exam. Thank you!

[@GhassanAlHarthy]

I've always wanted to know the difference. Thanks for your content!

[@AlexandarHullRichter]

I can relate to that cornering thing. One of my engine's would always run dry in hard right turns unless I had it completely topped up.

[@qasimmir7117]

How easy is it to change the oil on a dry sump lube system compared to wet sump?

[@sadakotube]

Qasim Mir actually the same. its just thae sump is put somewhere else and the oil pump is way bigger than the normal ones.

[@jannikmoller3705]

It´s much more complicated on the dry sump. As far as i know it from Audi´s W12 engine (dry sump) you need to suck the oil out from different locations in the system with a vacuum and for that the oil needs to be hot. On the wet sump you just take out the oil filter and the screw in the oil pan.

[@sadakotube]

Scuba actually the same. except maybe for some systems that are a little different. we don't actually drain the lines every single oil change. look in manuals. in practice, similar to wet, just different location(s)

[@jannikmoller3705]

sadakotube Yeah might be. As I said, I just know it from the Audi A8 W12 which you need to dry out completely.

[@DENicholsAutoBravado]

On my old Yamaha XT600 they have a dry sump system as well. Yes. It's a pill. I had to look it up to even realized that I had to drain oil from 3 locations, 1 being the oil filter. If you want to see it, It's on my KZbin channel.

[@donnieshowers4909]

This is very well put and explained. Thank you. :)

[@offtherichter7]

Some dirt bikes are wet sump as well. With the XR650L, you put oil in the frame down tube - thus the wet sump. No oil pan, oil is air cooled through the frame. Kinda neat, definitely a cheaper way of doing it haha

[@johnathanyinger]

Yeah.

[@maninder7172]

your videos are amazing.....i learn a lot from your videos....can u make a video on how to increase fuel economy and reduce wear and tear both at the same time.Thanks!!

[@trueblack6760]

Clear and easy to understand! Thank you so much!

[@JoeIsCrazyWillman]

Was recently thinking of this after some guys bragging about dry sump, and reminding me I hear dry sump mentioned a lot when talking of high power race vehicles and higher end sports cars, and was curious wtf is so special and what the difference is... Dry sump (not sure why it's called that tho), although superior in lubricating ability and fitting better in a lower car, isn't really necessary in 95%+ of vehicles, and also is more expensive and complex, and so not having a dry sump is nothing to be sad or ashamed about unless you've got a dedicated track car or frequently see the twisties at high speeds.

[@sergiocastro1429]

hi I've been watching your videos quite often and enjoy the simplicity of your explanation to where anybody can understand. sorry for my ignorance but I'm curious if you are indeed an actual engineer or what type of courses you'd have to take to become one. I really enjoy your videos and you have inspired me to become more knowledgeable in cars not just knowing names, but understanding the mechanics and physics. can you do some motorcycle videos? Great job, keep them coming!!

[@dhananjaypatil1111]

Could you make a video on amount of air required by an engine at various loads.

[@ucallthatatweet]

This has me thinking that it might be nice if you can make a video about remote oversized (and even multiple oversized) oil filter relocation kits.

[@AWSum-uf4ri]

Seconds into the video I already feel satisfied

[@MaikEletrica]

Very good! Thanks!

[@centercrawlxvx4315]

Here coz of online learning coz of quarantine thx so much

[@MrGaz1988]

I was just curious and came across your video, fantastic explanation thank you

[@user-el5mg4it9t]

R.i.p. Hans Mezger _1929-2020_ (The engineer who created the 1963-2012 Porsche dry-sump engines)

[@komentierer]

Des is a Trockensumpfschmierung

[@marvinrazor597]

Kommentator Bloß net reinfallen

[@crackedemerald4930]

DEUTSCHLAND

[@ganariagente8958]

this is MURICA, we speak EINGLISH HERE, not Nazi language !

[@denizivcic6730]

Besides the fact most Americans don't have the basic grasp of the English language; let alone the fact that it was spawned from German. Fucknut.

[@Crazyhero-zi6yt]

do schau hea, a österreicher

[@duramax78]

Can you do a video on exhaust from diesel and gas and what's cleaner.

[@TheGuyWithNoGamertag]

So a dry sump is so called, because any oil that runs onto it from the engine is then pumped to the reservoir? (none is stored on the oil pan but some does run onto it?)

[@marckart66]

I had a kart engine, biland sa250. 250cc 2 cylinder engine, dry sump. Before starting it we had to make sure the oil pressure was up. To do this we just had to remove the spark plug caps and turn it over until the oil pressure light went out. Once that was done, we had to fire the engine up and let it warm up to at least 50c before going out on track. Was all this a necessity because it was a dry sump engine? It only had one built in oil pump. We did notice at one track we went to, we weren't allowed to let it idle on the dummy grid to warm it up. On the first few laps while the engine was cold, it would sound quite rough. Same with the oil pressure. If you were ever running late and had to rush onto the track. Unless the pressure was fully up and temp, the engine didn't perform at all.

[@JeffGpermittivity]

Thank you. Always wondered the difference! Thanks!

[@kilg8753]

could you do a video explaining multi point suspension as there is little to no videos or websites that actually explain it

[@ItsAllAboutGuitar]

This is an awesome explanation. Very succinct and informative. Thanks a lot!

[@StrideX21]

Makes sense. People always say the c7 z06 heats up faster than the 6 gen zl1. C7z has the dry sump zl1 has wet sump.

[@myersprostatus]

can you do a vid on dry fuel cells pleaseeeee

[@adammoline]

Great video.... why exactly do they refer to it as a "dry" system?

[@MrJayemes]

Hi Jason, could you make a video about the compact engine concept by "LiquidPiston". It would be interesting to hear your thoughts on the technology. It seems promising. Love the channel! Keep it up!

[@mahimmahmood3953]

Thanks for your video

[@Lamai73]

Will you have to worry about overfilling the revisor/engine with oil then you got blown cylinder rings?

[@dimitrakarali4305]

Your video is fantastic !!!!

[@the6cow6god6]

do you think in the future you could work it in where you get actual car parts and/or cutaway engines to show stuff like this? I actually understand what you ment but id still love to be able to actually see them or even pictures added to your videos of the parts from peoples actual cars?! I think its be better if people could see the parts and now just a drawing or it. just a thought, still love these vids thanks for making them =)

[@AlexandarHullRichter]

What about Porsche's "integrated dry sump?" How is that different from a wet sump system?

[@ericcindycrowder7482]

The Second gen 2017+ NSX also has factory dry sump system. However it’s factory filled with mobile one 0W-40, so I guess that’s why you didn’t list it.

[@carlosgonz96]

Not exactly related to this but maybe you could answer this question. What are the major components at concern for a water/flood damaged vehicle other than the electronics. Would the engine and transmission be ok to use say swapped out to a different car. Or if water did get in the intake would it just need to be drained and possibly taken apart to ensure no water is inside it. Thank you for any useful information.

[@AveGuy1]

Why cant you have different pickup feeds in wet sump as well. Why doesnt oil slosh around in the reservoir of a dry sump causing oil starvation also?

[@jamjoe01]

Thanks for the explanation

[@laurentpk]

Excellent explanation. Thank you.👍

[@Harley_ashtonn]

This is the only “class” I want to be in

[@siddharthkrishnan3317]

Doing some hw for FSAE. Tysm!!!!

[@Crusher103]

Interesting. On my bmw the oil cap says "BMW RECOMMENDS THE USE OF CASTROL." So just to spite it, i put in ANYTHING but Castrol, typically it is some heavy weight Pennzoil. Complete and total, disobedience. I know one day it is going to rebel because i disobeyed a direct order but for now, i own it.

[@frej2229]

But won't the first oil pump pull all the oil from the crankcase, meaning the bearings between the crankshaft and connecting rods won't get enough lubrication when there's no oil there? Or do they get lubrication from somewhere else?

[@StephenGillie]

Have you ever worked with Prof. John Kelly of the WeberAuto channel and Weber State University?

[@FIFTYmil]

So when you're taking your car to the track, is it better to have the engine oil at the top mark rather than the bottom mark on the dip stick? Doing so you would reduce the amount of sloshing for the pump to suck air

[@kinslayergaming3159]

FIFTYmil keep the oil just a tad before the full mark never run with low oil

[@amberbhargava3440]

what is the extra tube in the dry sump for?(the one directly connecting the reservoir to the crankcase)

[@ryancoopersnissan240sx8]

It's for gases to vent out of the reservoir so to not build up pressure and possibly damage the reservoir.

[@jaivaja7316]

Can u do a video on air/fuel ratio for petrol vehicles where u go on about stoichiometric and different air/fuel ratios for idling, cruising, acc, Dec & cold start. We were learning about this in college today and my mind went blank 🙄😫

[@amitosr]

corvette c6 z06 also has a dry sump

[@clearskyy]

awesome, well explained and concise, perfect!

[@MoonlightFox]

So the oil is fed in at the top and works its way down the engine via gravity? I thought having oil in the piston chambers was bad as it would mean you're burning the oil in the combustion stroke.. although, I guess you need a small amount to lubricate the piston rings?

[@carbonfibercreationswashin7213]

In dry sump does the engine preoil before start up?

[@VaskoGame]

would it be possible for a wet sump system to have two intakes aswell? just curious :)

[@mohammedwakeel4541]

thank you! What is the deal with crankshaft system in dry sump lubrication|?