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oil molecules #4661386
02/09/18 10:03 PM
02/09/18 10:03 PM
Joined: Feb 2018
Posts: 12
Oklahoma
RetiredSux Offline OP
RetiredSux  Offline OP
Joined: Feb 2018
Posts: 12
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.


2018 Subaru Crosstrek 2.0i Premium with Eyesight
2014 Subaru Outback 2.5i Premium
1993 Ford Ranger XLT 4X4 Longbed
Re: oil molecules [Re: RetiredSux] #4661402
02/09/18 10:19 PM
02/09/18 10:19 PM
Joined: Oct 2012
Posts: 4,807
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,807
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.

Re: oil molecules [Re: RetiredSux] #4661447
02/09/18 11:06 PM
02/09/18 11:06 PM
Joined: Mar 2016
Posts: 1,249
CA
CharlieBauer Offline
CharlieBauer  Offline
Joined: Mar 2016
Posts: 1,249
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.


It ain't what you don't know that gets you into trouble. It's what you know for sure that ain't so.

- mistakenly attributed to Mark Twain
Re: oil molecules [Re: RetiredSux] #4661462
02/09/18 11:38 PM
02/09/18 11:38 PM
Joined: Dec 2002
Posts: 41,225
'Stralia
Shannow Offline
Shannow  Offline
Joined: Dec 2002
Posts: 41,225
'Stralia
Oil molecules are closer to a fuzzy rope than a ballbearing

Re: oil molecules [Re: RetiredSux] #4661514
02/10/18 12:59 AM
02/10/18 12:59 AM
Joined: Jul 2003
Posts: 4,816
New Zealand
Silk Offline
Silk  Offline
Joined: Jul 2003
Posts: 4,816
New Zealand
This is what blood looks like. Pity the craft was destroyed and we lost the technology.



1987 BMW R65 - Penrite V Twin 20/50
2005 Nissan Expert - Gulf Western 10W-40
1996 Volvo T5 - Penrite HPR15 - 15W-60. Ryco syntec filter.
Re: oil molecules [Re: Silk] #4661516
02/10/18 01:26 AM
02/10/18 01:26 AM
Joined: Dec 2006
Posts: 18,846
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,846
Dallas,Tx 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!!



1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: oil molecules [Re: Shannow] #4661529
02/10/18 02:22 AM
02/10/18 02:22 AM
Joined: Dec 2016
Posts: 6,484
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,484
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.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: oil molecules [Re: RetiredSux] #4661530
02/10/18 02:23 AM
02/10/18 02:23 AM
Joined: Dec 2016
Posts: 6,484
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,484
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."
Re: oil molecules [Re: RetiredSux] #4661729
02/10/18 10:25 AM
02/10/18 10:25 AM
Joined: Oct 2014
Posts: 12,051
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,051
Idaho
Think more of waterskiing.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: oil molecules [Re: aquariuscsm] #4661768
02/10/18 10:56 AM
02/10/18 10:56 AM
Joined: Jul 2012
Posts: 2,143
Nashville, TN via Memphis
john_pifer Online content
john_pifer  Online Content
Joined: Jul 2012
Posts: 2,143
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!


16 WRX - PPPP
07 Tacoma V6 - M1 EP 5W-30, Fram Ultra, 10K OCIs, 198K
07 Yamaha R1 - Rotella T6 5W-40, Bosch 3300
07 Yamaha YZ-250, Klotz, Rotella


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