Oils that cool better

[EMPIRE]

Well, since the other thread was closed for some unknown reason, back onto why a SAE 30 actually cools better than say a 0w30.

Here's some bread-crumb evidence, sample A and B cool better than C D & E.

ref: https://www.scholarsresearchlibrary...using-specific-heat-capacity-and-cooling-.pdf
substances with high cooling rates are good coolants and lubricants

Now look at the formulation of the oils. Hmmmm, interesting.

Maybe later I show why SAE 30 cools better than any xW30.

 

[blingo]

These "early days of the integrated circuit engine" must be persistant. Very basic research, this satiric trouvaille. Take your time to look into it before you later may show.

 

[53' Stude]

Well, since the other thread was closed for some unknown reason, back onto why a SAE 30 actually cools better than say a 0w30.

Here's some bread-crumb evidence, sample A and B cool better than C D & E.


Now look at the formulation of the oils. Hmmmm, interesting.

Maybe later I show why SAE 30 cools better than any xW30.

I’m waiting for that info. Should be real, real interesting too

 

[OilUzer]

I thought you were grounded. lol

 

[53' Stude]

I thought you were grounded. lol

 

[PimTac]

Why would one 30 grade cool better than another 30 grade?

The world wonders.

 

[OilUzer]

I meant the op

 

[MParr]

Anecdotal: Air cooled VWs specified SAE 30
Air cooled mower engines still specify SAE 30
Cool better?

 

[OilReport99]

Tonight, Dr. Phill will reveal the secrets of 30 grade oil’s cooling capabilities... stay tuned!

 

[OilUzer]

Isn't it because straight oils have no vii(vm) so they can handle heat better and shear less. In case of mowers you also don't run them in winter so no W rating is required.
basically they handle heat better and not necessarily cool better.

 

[ZeeOSix]

Well, since the other thread was closed for some unknown reason, back onto why a SAE 30 actually cools better than say a 0w30.

Here's some bread-crumb evidence, sample A and B cool better than C D & E.

Now look at the formulation of the oils. Hmmmm, interesting.

Maybe later I show why SAE 30 cools better than any xW30.

Per Figure 6, the only one that stands out for heat transfer rate is Oil B - all other oils tested have lines on top of each other.

The paper has zero data on how that might effect actual parts within an actual engine using each of these oils. My bet is you couldn't measure the difference in real use - only the super small difference in the lab.

The paper says absolutely nothing about the formulation of the oil or concludes whey Oil B has a slightly better heat transfer rate.

The paper is only comparing 20W-50 oils to each other. It has zero data comparing SAE 30 to 0W-30 as you seem to be focused on. More trying to connect the dots when there are no dots.

 

[ABN_CBT_ENGR]

Maybe later I show why SAE 30 cools better than any xW30.

You sure its not a secret of "nucular" engineering?

I have yet to see you show or actually "prove" anything.

This paper you linked to shows nothing of the sort as your claim and I go back to my original question you have evaded to this point.

What are you really doing here?

 

[ZeeOSix]

The paper keeps saying that the oil's viscosity and specific heat capacity is a factor in the cooling performance.
"The cooling rate reflects the degree of fall of temperature with time. This hinges on the viscosity and of course, the specific heat capacity."

YET, the paper never showed the measured viscosity of these test oils to each other. If they would have measured the viscosity of each at 100C and compared them to the measured cooling performance, then it just may show that a more viscous oil will actually cool better than a less viscous oil.

 

[Rand]

the linked pdf throws out a spam warning on eset nod32.

 

[53' Stude]

the linked pdf throws out a spam warning on eset nod32.

I wonder why

 

[ZeeOSix]

the linked pdf throws out a spam warning on eset nod32.

No warning from Malwarebytes or Firefox for me.

 

[RDY4WAR]

Wrong perspective. Instead think of it as which oil would permit/generate less friction/heat than another. Oils with lower surface tension, lower viscosity, and lower pressure-viscosity coefficient tend to generate less heat.

 

[M56959]

If a topic is shut down there is no great mystery.

Starting another duplicate topic and expecting a different outcome..

As majority of posts illustrate, this topic has the same trajectory.