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#4661386 - 02/09/18 09:03 PM oil molecules
RetiredSux Offline


Registered: 02/09/18
Posts: 11
Loc: Oklahoma
Been a looong time! So long that my email has changed at least twice and I forgot what my displayed name was. So I had to register as a noob.... You can skip past the "Welcomes"!

I envision motor oil as being billions of micro bearings. I also think that these micro bearings on the 0w20 motor oils are smaller than those of the 5w30 oils. Am I correct? If not, I'll have to go back to another car forum and eat crow. That's OK!! I don't mind being wrong.
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#4661402 - 02/09/18 09:19 PM Re: oil molecules [Re: RetiredSux]
Ducked Offline


Registered: 10/25/12
Posts: 4070
Loc: Taiwan
Doubt the analogy works very well, though you can't really say an analogy is "correct" anyway since its, like, only an analogy.

IF it was a good model, (which implies that oil molecules are roughly spherical) then it implies that fewer, bigger ball bearings would have a greater resistance to motion and shear, since bigger molecules have higher viscosity.

I don't THINK this would be the case for bigger ball bearings. I'd expect it to be the other way around.

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#4661447 - 02/09/18 10:06 PM Re: oil molecules [Re: RetiredSux]
CharlieBauer Offline


Registered: 03/29/16
Posts: 1174
Loc: CA
If you swap "billions of micro bearings" for "oil film" and "smaller" for "thinner", then you'd be correct.

Originally Posted By: RetiredSux
I also think that these micro bearings oil film on the 0w20 motor oils are smaller is thinner than those of the 5w30 oils.
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#4661462 - 02/09/18 10:38 PM Re: oil molecules [Re: RetiredSux]
Shannow Online   content


Registered: 12/12/02
Posts: 38986
Loc: 'Stralia
Oil molecules are closer to a fuzzy rope than a ballbearing

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#4661514 - 02/09/18 11:59 PM Re: oil molecules [Re: RetiredSux]
Silk Offline


Registered: 07/26/03
Posts: 4381
Loc: New Zealand
This is what blood looks like. Pity the craft was destroyed and we lost the technology.

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#4661516 - 02/10/18 12:26 AM Re: oil molecules [Re: Silk]
aquariuscsm Offline


Registered: 12/30/06
Posts: 17930
Loc: South Texas,USA
Originally Posted By: Silk
This is what blood looks like. Pity the craft was destroyed and we lost the technology.



I loved that movie!!

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#4661529 - 02/10/18 01:22 AM Re: oil molecules [Re: Shannow]
Linctex Offline


Registered: 12/31/16
Posts: 5706
Loc: Waco, TX
grin2 thumbsup

Originally Posted By: Shannow
Oil molecules are closer to a fuzzy rope than a ballbearing


I think of oil like "stew" - lots of stuff mixed together.
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#4661530 - 02/10/18 01:23 AM Re: oil molecules [Re: RetiredSux]
Linctex Offline


Registered: 12/31/16
Posts: 5706
Loc: Waco, TX
Originally Posted By: Silk
This is what blood looks like. Pity the craft was destroyed and we lost the technology.


_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4661729 - 02/10/18 09:25 AM Re: oil molecules [Re: RetiredSux]
CT8 Offline


Registered: 10/09/14
Posts: 10550
Loc: Idaho
Think more of waterskiing.
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#4661768 - 02/10/18 09:56 AM Re: oil molecules [Re: aquariuscsm]
john_pifer Offline


Registered: 07/08/12
Posts: 1806
Loc: Nashville, TN via Memphis
Originally Posted By: aquariuscsm
Originally Posted By: Silk
This is what blood looks like. Pity the craft was destroyed and we lost the technology.



I loved that movie!!



LOVED that movie when I was a kid!

Thanks for bringing back some memories!
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