Oils that have Group V alkylated naphthalene (AN) according to Oil-Club Russia

Joined
Dec 29, 2010
Messages
5,441
Location
Paramount, California
Exxon Mobil markets their Synesstic Group V alkylated naphthalene (AN) base stocks as having excellent cleaning properties but without increasing wear as the Group V polyol ester (POE) base stocks do, as the POE fights for the metal surfaces with the AW/EP/FM additives but the AN doesn't. Mobil 1 oils do not use esters except in the European formulations (M1 FS 0W-40, M1 ESP, etc.) according to Fourier-transform infrared spectroscopy (FTIR) oxidation numbers. Oil-Club Russia claims to have found the spectral signature of the Group V AN base stocks, which is comb-shaped. They list the following oils as using the AN base stocks among what they tested. It looks like all non-Euro Mobil 1 oils are using AN instead of esters. Mobil 1 0W-20 API SN; ILSAC GF-5; Dexos1 Gen2 Mobil1 0W-20 Advanced Fuel Economy Mobil 1 5w20 Advanced Full Synthetic Mobil1 X1 5W-30 Mobil1 Racing 0W-30 Mobil1 Extended Performance 5W-30 Mobil Delvac1 5W-40 Mobil Delvac1 SHC 5W-40 Motul 300V Trophy 0W-40 Motul 300V Ester Core 5W-40 Rolf 3-Synthetic 5W-30 Rolf 3-Synthetic 5W-40 [Linked Image] Their thread is below but you need to translate using the Google Chrome browser: https://www.oil-club.ru/forum/topic/24076-masla-s-dobavleniem-alkilirovannyh-naftalinov-an/ Below information about Group V AN base stocks is from Exxon Mobil's advanced synthetic base stocks guide. You can see that AN outperforms esters in oxidation stability, wear protection, and fuel economy: [Linked Image]
 

Gokhan

Thread starter
Joined
Dec 29, 2010
Messages
5,441
Location
Paramount, California
Notes: According to the FTIR oxidation numbers, the amount of esters in Euro Mobil 1 oils (FS, ESP, etc.) are in the range 5 - 15%, with the ESP having more esters. Non-Euro Mobil 1 oils have no esters. The amount of PAO in Mobil 1 oils varies according to the MSDSs. According to its patent, Valvoline Premium Blue Restore cleaning engine oil's base oil is 62.5% POE, 25.0% PAO, and 12.5% AN.
 
Joined
Aug 13, 2017
Messages
2,707
Location
WY
Interesting. I'm thinking that the AN's are probably more widely used than people think. I wonder if they are a cheaper method of attaining the desired results than traditional mixtures.
 

OVERKILL

$100 Site Donor 2021
Joined
Apr 28, 2008
Messages
48,060
Location
Ontario, Canada
Very interesting information which I have not seen before, particularly the XOM Chemical stuff. Thanks for the share thumbsup
 
Joined
Aug 13, 2017
Messages
2,707
Location
WY
Originally Posted by nascarnation
Is this sort of the Russia version of BITOG?
I wonder is Russians get on the site and ask about the proper oil and change interval for their pristine Trabant?
 
Joined
Aug 13, 2017
Messages
2,707
Location
WY
Originally Posted by irekm
No Trabants In Russia, wrong country
Wealthy Stalinist's would import them from East Germany to impress their friends.
 
Joined
Dec 4, 2004
Messages
13,225
Location
1/2 hr N.E. of Detroit
Originally Posted by sloinker
Originally Posted by irekm
No Trabants In Russia, wrong country
Wealthy Stalinist's would import them from East Germany to impress their friends.
Didn't the Wall come down last year? Wait - I just recently awoke from a coma, dating back to Nov 91'.... sorry!
 
Joined
Nov 7, 2016
Messages
1,163
Location
sonoma
I'm sure when people put that in oils that cost a little more the oil guys here will certainly hate it no matter what the benefit it.
 

OVERKILL

$100 Site Donor 2021
Joined
Apr 28, 2008
Messages
48,060
Location
Ontario, Canada
Originally Posted by y_p_w
I recall that AN was supposed to be the third base oil used in the "Tri-Synthetic" formula with PAO and esters as the first two.
That's correct. It was PAO/POE/AN
 
Joined
Mar 15, 2006
Messages
6,156
Location
Buffalo, NY
Originally Posted by sloinker
Originally Posted by nascarnation
Is this sort of the Russia version of BITOG?
I wonder is Russians get on the site and ask about the proper oil and change interval for their pristine Trabant?
Probably a Lada more likely. Trabant was East German and U2 ZooTV: [Linked Image]
 

MolaKule

Staff member
Joined
Jun 5, 2002
Messages
22,363
Location
Iowegia - USA
Originally Posted by Gokhan
Notes: According to the FTIR oxidation numbers, the amount of esters in Euro Mobil 1 oils (FS, ESP, etc.) are in the range 5 - 15%, with the ESP having more esters. Non-Euro Mobil 1 oils have no esters. The amount of PAO in Mobil 1 oils varies according to the MSDSs. According to its patent, Valvoline Premium Blue Restore cleaning engine oil's base oil is 62.5% POE, 25.0% PAO, and 12.5% AN.
But oxidation numbers aren't always indicative of base oil esters by volume or percentage since many additives have oxygen linkages. Many additive components are also esterified so trying to determine the amount of say, Esterex TMP ester(s) would be rather difficult without additional C-NMR or H-NMR analysis.
 
Last edited:
Joined
Nov 7, 2016
Messages
1,163
Location
sonoma
Originally Posted by MolaKule
Originally Posted by Gokhan
Notes: According to the FTIR oxidation numbers, the amount of esters in Euro Mobil 1 oils (FS, ESP, etc.) are in the range 5 - 15%, with the ESP having more esters. Non-Euro Mobil 1 oils have no esters. The amount of PAO in Mobil 1 oils varies according to the MSDSs. According to its patent, Valvoline Premium Blue Restore cleaning engine oil's base oil is 62.5% POE, 25.0% PAO, and 12.5% AN.
But oxidation numbers aren't always indicative of esters by volume or percentage since many additives have oxygen linkages. Many additive components are also esterified so trying to determine the amount of say, Synestic TMP ester would be rather difficult without additional C-NMR or H-NMR analysis.
Thank you, I have been wondering about this.
 
Joined
Nov 16, 2002
Messages
34,697
Location
NJ
Thanks for sharing this Gokhan. I need to read up on AN's a bit more. I've been reading articles here and there on them. I'm not sure how much of what XOM is saying about AN's offering better performance than POE's is true or not. Based on what XOM is showing, AN's offer great performance attributes. I know the ESP line and 0w40FS/ESP are probably their top tier oils, overall. I've always found it interesting that the PDS for the 0w40 stated exceptional cleaning power and good for cleaning dirty engines. I assume this is due to the POE in the oil.
 

JAG

Joined
Oct 23, 2005
Messages
5,319
Location
Fredericksburg, VA
I wish we could hear from XOM's formulators why a few Mobil 1 oils use a small but significant amount of ester when they have so frequently made documents like Gokhan displayed above, singing the praises of AN completely at the expense of esters. What I mean is that if ANs are that superior to esters according to them, why do a few of their oils use them? XOM has been making documents like that for many many years. I recollect them to have started making such documents in the early 2000s.
 
Top