R&D 20W-50 Semi Synthetic Oil Temp Vs 10W-40 Synthetic Oil Temp
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- Опубликовано: 5 окт 2024
- Driven Racing Oil is currently working on a new Semi-Synthetic Performance/Racing Oil line. In this video Lake Speed Jr. had some surprising results during a R&D dyno run; a Semi-Synthetic 20w-50 oil ran cooler than a Synthetic 10w-40 oil.
Based off the fact that it is primarily mineral base and a thicker viscosity, this is counter intuitive to what you would/should expect to see. 
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In Harley Davidson manual they say run 20W50 if ambient temperature above 40, SAE 50 if ambient above 60, and SAE 60 if ambient above 80. This is because the thick oil stays cooler and maintains it's viscosity in high heat v-twins. It is air/oil cooled. But you don't want too thick to have bad engine starts. Once warm, the thicker seems better though.
Lake Speed Jr. Was onto something there...
Thank you!
Very useful info! 👍
Great information! Doesn't a better flow over the bearings make the oil temp higher because of the more oil transfering the heat?
The 20w50 "ran cooler" likely because it has higher specific heat capacity?
Meaning it'd absorb more heat before showing the same amount of increase in temperature.
If so, what it also means, is by the time the 20w-50 got hotter based on longer run time, it will hold its heat (hold its higher temp) more than the 10w-40.
See this video, at time stamp 6:30. ruclips.net/video/6VLMfUz34R0/видео.html
Running a few degrees cooler (vs the 10w-40) in a few rev's on the dino does not reflect a 40min commute or a 4hr track day.
I also read the same thing on some papers, 20w50 is worse at cooling engine, once hot it is difficult to cool it down
10w40 should be better in cooling capacity and dispersation throughout the engine
A higher density causes more heat coheficient too. Takes more time to heat and to cool.
Makes sense both of you.
Thank you!
The more efficient an oil is at taking away heat from engine components, the hotter it will be.
So based on this theory, the reason the non synthetic oil is running cooler is because it isn't taking away as much heat from the internals and transferring it to the oil, aka less efficient heat transfer.
Seeing higher oil temps from a different oil typically means that your pistons, cylinder walls, bearings are going to be cooler.
All heat is just energy, oils don't have cooling properties by themselves, so the conventional oil just isn't capable of transferring the energy well.
interesting !
Nice , this is was was searching for exactly.
Sorry, but make big mistake: cooler oil means one thing: less heat was absorbed from internals, so everything in engine are just running hotter. Thinner oil transfer heath better, so it temperature rises more, than in case of thicker oil. Put solid grease in that engine and you will see even lower "oil" temperature.
You dumb bitch… oil has to lubricates internal components.. lighter oil = less lubrication.
This is why evo guys run 20-50
Your comment is why I'm here. I just put an FP ball bearing Red into my 8 and will be using Brad Penn 20w50.
i m very glad to see the results it also hit mewhen the 20w50 temp is much coolder than the 10w40
my question is what does that effects on the main crankshaft journal oil holes ?
does 20w50 lubricate much better than10w40 or has no effect so many contradiction in answers over the internet.
did you use same oil brand for both tests ?
wish to get a reply and thank you again for this great info .
note: redited comment for grammar corrections
nice informative video bro. thanks
For years we here we ran 10 w 30 in lawn mower and now the dealer gives is 20 w 50 down here in louisiana they said less consumption runs cooler.
great test review, here is some common sense. reduce the friction, reduce the oil temp. friction causes heat, causing oil to thin out and if high enough break down. oil no matter what grade if blended with high-quality properties will hold up much better in a given environment. molly, zink, phosphorus, Teflon, detergents, polytetrafluoroethylene ect: ect: ect: makeup motor oil, the more ppm the more it costs and performs. cheap oil is just that.
That's really interesting
Yeah, when does oil start to vaporize? All different? What temp is too low?
its been 5 years
did we knew what is that 20w 50 oil ? i mean did the oil ever mass produce?
curious how 20w 50 mineral stay cooler compared to 10w 40 syn :)
Great video info! Would you recommend 20w50 synthetic is LS engines?
I believe these are motorcycle oil grades.
For Corvette LS engines use Mobil 1 0W40 European car formula.
Good test
so we should use 20 50 instead of 10/40 oil? i was planning to switch to 10w40 and was using 20/50 . so tell me should i keep using same or should I switched to 10/40??
as light of an oil as possible, as heavy as necessary
I bet engine clearances are not identical
Group I oil have better lubricity than group III or IV.
Hmmm nice test sir Compared to that silly boiling blow lamp test.
But which oil will provide better protection at operating temperature?
The GP-1 showed to provide better wear protection; it showed less wear metal in the used oil analysis and less wear in before and after camshaft measurements with the only variable being the oil. In all, this was an average of about 30% less wear compared to other semi-synthetic and convention performance racing oils.
@@DrivenracingoilLLC, which one of the two is GP-1, the 20W50 or 10W40?
Blessed day bro! I'm from the tropics & I just turbocharged my 1.5 nissan N.A engine, what's a good application to combat extreme heat?
So the semi is running cooler? Which out of the two is providing better protection with the ZDDP. I always understood that the lighter the viscosity, the better the cooling effect? I currently run your FR20 in my 2017 Mustang GT with a whipple 700+ wheel HP.....should I be using a higher viscosity oil? I haven’t yet installed my engine oil temp and the pressure gages to monitor them but coming in the next 30 days....
Lake Speed Jr NICE! Does the FR20 utilize the same formula as the NASCAR formula?
Lake Speed Jr Thank you Sir!! Great products!! Keep the vids comin.....
Well was it just because its 20/50 or dose most conventionall 20/50 run cooler? I dont get it? Should i run a extra thou clearance on mains & run 20/50
Can I use 20w50 in vw 1.8 tsi engine (140000 km done )
Is the engine stock and what will you be using this engine for?
@@DrivenracingoilLLC 20w50 is much better than 5w40 in my hot region (109.4 Fahrenheit) and also it seems maintaining oil pressure too.engine runs smooth without any noise.also using this same oil in my Skoda superb 1.8 tsi (done 160000 km) no issues so far.I’m changing oil every 6000 km.
@@vijaysundar5250 Sounds like a perfect fit for your combination. I can definitely see the thicker viscosity help maintain oil pressure. Hot climates tend to elevate the oil temps and the thicker viscosity will help with that.
So what’s your idea as to why? Follow up video?
Lake Speed Jr so which oils have those friction modifiers? I run 5w30 or 10w40 in a pushrod Ford stroker
You should try GoNMF additive.
toyota ae101 corolla 1.6 efi 10 40 or 20 50 ?
my country temperature is between 27° to 35°, what oil is that best 5w30,10w40 or 20w50?..thank you
Depends on the machine. What does the owners manual say?
And of them will have good flow at start up. No problem for a 20w50.
02:25 20w-50 Is running cooler than Synthetic 10w-40... i prefer an oil that runs hotter,,,it means is taking heat off the engine better that the thick oil...then this heat is passed onto the water that later is cooled via the radiator
We appreciate the thought, but the specific heat value of the 20W-50 GP-1 is actually better than the 10W-40 so it is able to absorb and pass through that heat at a greater rate. Hope this helps.
@@DrivenracingoilLLC what about oi pressures?? ID like to know what oil pressures readings you got..cause as experiwnce says when cold u get a pressure but the same oil in our cars as they get hotter pressures drops as the oil gets thinner cause of heat absorbed by the oil..i Guess the 10w40 got lower oil pressures than that of 20w50????
@@bestofthebest3821
Wouldn’t the weather, engine size & make/model, and year make a difference…??? In areas that’s extremely hot all the time…20w-50 may be better.