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Naphthenic Oils #5138615
06/19/19 05:06 PM
06/19/19 05:06 PM
Joined: Jun 2002
Posts: 20,236
Iowegia - USA
MolaKule Offline OP
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MolaKule  Offline OP
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Iowegia - USA
Supply the missing words:

Naphthenic oils (Group V) are sometimes called ______ ____ and are rich in ____________.






This question is open to ALL.

Last edited by MolaKule; 06/19/19 05:10 PM.

"Science is a body of knowledge, a 'recipe', as it were, for reality. The totality of science is a collection of hard-earned nuggets, using math as a language of expression." Chip Cohen
Re: Naphthenic Oils [Re: MolaKule] #5138620
06/19/19 05:12 PM
06/19/19 05:12 PM
Joined: Aug 2018
Posts: 611
Georgia
RDY4WAR Online content
RDY4WAR  Online Content

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Georgia
Naphthenic oils (Group V) are sometimes called pale oils and are rich in cyclo-paraffins.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Naphthenic Oils [Re: MolaKule] #5138635
06/19/19 05:38 PM
06/19/19 05:38 PM
Joined: Feb 2008
Posts: 1,203
PA
umungus1122 Offline
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PA
Rich in aromatics(high solvency)?


'95 Chevy 1/2t 305 208k -NexGen Maxlife 5w-30, Wix filter
'89 Jeep Comanche 4.0 5spd 285k - GC 0w-30, Bosch LongLife filter
Re: Naphthenic Oils [Re: MolaKule] #5138641
06/19/19 05:49 PM
06/19/19 05:49 PM
Joined: Mar 2018
Posts: 1,234
Mississippi
TheLawnRanger Offline
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Mississippi
Pale Oils, Aromatics


2011 Impala
2012 Colorado
Oil: 5w30 synthetic
Filters: Wix 51522 for both
Re: Naphthenic Oils [Re: MolaKule] #5138668
06/19/19 06:28 PM
06/19/19 06:28 PM
Joined: Oct 2009
Posts: 27
The Woodlands Texas
Needleman Offline
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The Woodlands Texas
pale oils, aromatics


2014 Subaru Legacy 2.5 52k -- Subaru 0W-20/Subaru OEM filter
Re: Naphthenic Oils [Re: MolaKule] #5138672
06/19/19 06:37 PM
06/19/19 06:37 PM
Joined: Oct 2010
Posts: 458
SW Florida
Taildragger Offline
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I had to Google it,,,, wink


04 F-150 5.4
73 Big Block, 4sp Corvette
15 Mazda 3
Couple of airplanes
Re: Naphthenic Oils [Re: MolaKule] #5138676
06/19/19 06:40 PM
06/19/19 06:40 PM
Joined: Aug 2018
Posts: 611
Georgia
RDY4WAR Online content
RDY4WAR  Online Content

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Georgia
They are also rich in aromatics. I'm not sure which one you want.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Naphthenic Oils [Re: MolaKule] #5138693
06/19/19 06:56 PM
06/19/19 06:56 PM
Joined: Apr 2018
Posts: 486
US
talest Offline
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US
1. Synthetic Technology ?
2. Esters and polyolesters?

Re: Naphthenic Oils [Re: MolaKule] #5138817
06/19/19 09:25 PM
06/19/19 09:25 PM
Joined: Aug 2009
Posts: 45
Louisiana
OilSwine Offline
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Louisiana
Wait, are naphthenics GroupV? Like the naphthenic transformer oils produced by Ergon and Cross Oil (Martin)? These naphthenic oils are more cyclic, crude based, not really polyol ester type oils.

Re: Naphthenic Oils [Re: talest] #5138822
06/19/19 09:36 PM
06/19/19 09:36 PM
Joined: Aug 2009
Posts: 45
Louisiana
OilSwine Offline
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Louisiana
And naphthenes and aromatics are distinctly different.

(NA) Re: Naphthenic Oils [Re: OilSwine] #5138843
06/19/19 10:30 PM
06/19/19 10:30 PM
Joined: Jun 2002
Posts: 20,236
Iowegia - USA
MolaKule Offline OP
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Originally Posted by OilSwine
Wait, are naphthenics GroupV? Like the naphthenic transformer oils produced by Ergon and Cross Oil (Martin)? These naphthenic oils are more cyclic, crude based, not really polyol ester type oils.

Not all Group V oils are synthesized, or esters, or have to be to fall into the API Group V classification.

Quote
Group V embraces everything else, ranging from some very low-quality naphthenics all the way up to some very exotic synthetic oils. Other occupants of this group are organic esters, compressor oil, some biodegradable


See chart on Page 33 of 35:


STLE Page 33 Chart

Last edited by MolaKule; 06/19/19 11:04 PM.

"Science is a body of knowledge, a 'recipe', as it were, for reality. The totality of science is a collection of hard-earned nuggets, using math as a language of expression." Chip Cohen
(NA) Re: Naphthenic Oils [Re: Taildragger] #5138852
06/19/19 10:55 PM
06/19/19 10:55 PM
Joined: Jun 2002
Posts: 20,236
Iowegia - USA
MolaKule Offline OP
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MolaKule  Offline OP
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Originally Posted by Taildragger
I had to Google it,,,, wink


And what is your answer?


"Science is a body of knowledge, a 'recipe', as it were, for reality. The totality of science is a collection of hard-earned nuggets, using math as a language of expression." Chip Cohen
(NA) Re: Naphthenic Oils [Re: Needleman] #5138888
06/19/19 11:42 PM
06/19/19 11:42 PM
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Texas
4WD Offline
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Texas
Originally Posted by Needleman
pale oils, aromatics


^^this^^

(NA) Re: Naphthenic Oils [Re: MolaKule] #5139769
06/21/19 12:35 AM
06/21/19 12:35 AM
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Iowegia - USA
MolaKule Offline OP
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Many good answers but RDY4WAR had the first correct and complete answer.

Group V Naphthenic oils are sometimes called "Pale Oils" because of their pale color and are rich in cyclo-parrafins.

Cyclo-parrafins (also called "naphthenes") are saturated cyclic hydrocarbons of the general formula CnH2n, i.e, a hydrocarbon with a molecule containing a ring (cyclic) of carbon atoms joined by single bonds.

They are rich in aromatics which gives them a solvency advantage for certain additives.

Their low paraffin (a flammable, whitish, translucent, waxy solid consisting of a mixture of saturated hydrocarbons) content gives them an inherently low pour point.

But they also have a relatively low VI and their lubricating performance and oxidation stability are poor.

Their applications are in transformer oils, additive solvents, spray cans as the solvents for lubes and rust preventives, and other specialty applications.

Last edited by MolaKule; 06/23/19 02:26 PM.

"Science is a body of knowledge, a 'recipe', as it were, for reality. The totality of science is a collection of hard-earned nuggets, using math as a language of expression." Chip Cohen
(NA) Re: Naphthenic Oils [Re: MolaKule] #5149174
07/02/19 02:01 AM
07/02/19 02:01 AM
Joined: Jul 2019
Posts: 9
Ua
Loma Offline
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Ua
Group I base oil stocks contain greater than 0.03% sulfur, less than 90% saturates. Groups II and III are both hydroprocessed oils with comparable purity and typically 99% saturates.
Cyclo-parrafins (also called "naphthenes") are saturated cyclic hydrocarbons.

Thus, naphthenic oils belong to 1-3 groups, depending on the content of sulfur and aromatic hydrocarbons. ?


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