Beastly Mobil 1 Delvac 0w40

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Its a great gasoline + diesel engine CK-4 SN oil, for mixed fleets. Probably over-engineered like Rotella T6 Multi-Vehicle.
For anybody needing an HTHS 3.2 oil (similar but slightly thicker than dexos1 levels), there is the Delvac 1 Advanced Fuel Economy 5w-30 FA-4 SN, for when CK-4 is too thick.
 
I was looking at the specs for 5w-40...says Hi-Temp Hi-Shear Viscosity @ 150ºC 1x10(6) sec(-1), mPa.s, ASTM D4683 3.8 cP .

Volvo VDS-4.5(and I'd guess Mack EOS-4.5 and Renault RLD-4 too) mandate >= 3.9cP HTHS visc. after shear by ASTM D7109 (90 cycles) per ASTM D 4683 or CEC L-36-A-97 for xw-40 viscosities. Could this be a typo by Mobil ?

The other viscosities (D1 0w-40 and 5w-30) are "in spec" in this regard...
 
Originally Posted by edyvw
Delvac always had stout numbers. I think I will use Delvac 75W90 in Sienna's transfer case and rear diff.


edyvw: I buy Delvac 1 gear lube at Summit Racing …
last time I had to spend $100 for free shipping but needed some spark plugs anyway
 
It has an HTHS of 4.1cP
crazy2.gif


[Linked Image]
 
Originally Posted by 4WD
Originally Posted by edyvw
Delvac always had stout numbers. I think I will use Delvac 75W90 in Sienna's transfer case and rear diff.


edyvw: I buy Delvac 1 gear lube at Summit Racing …
last time I had to spend $100 for free shipping but needed some spark plugs anyway

Yeah, I saw that it is cheapest there.
I can always find something to buy to pass $100.
 
Originally Posted by edyvw
Originally Posted by 4WD
Originally Posted by edyvw
Delvac always had stout numbers. I think I will use Delvac 75W90 in Sienna's transfer case and rear diff.


edyvw: I buy Delvac 1 gear lube at Summit Racing …
last time I had to spend $100 for free shipping but needed some spark plugs anyway

Yeah, I saw that it is cheapest there.
I can always find something to buy to pass $100.


Decent testimony here …

http://www.brrperformance.com/store/product_info.php?products_id=2537
 
Originally Posted by 4WD
Originally Posted by edyvw
Originally Posted by 4WD
Originally Posted by edyvw
Delvac always had stout numbers. I think I will use Delvac 75W90 in Sienna's transfer case and rear diff.


edyvw: I buy Delvac 1 gear lube at Summit Racing …
last time I had to spend $100 for free shipping but needed some spark plugs anyway

Yeah, I saw that it is cheapest there.
I can always find something to buy to pass $100.


Decent testimony here …

http://www.brrperformance.com/store/product_info.php?products_id=2537

Thanx for posting.
I saw that Porsche drivers are going after this lube. I highly doubt my SIenna is demanding as GT3, but why not?
 
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MSDS is interesting:

[Linked Image]


So it's 20-30% PAO, 1-5% Group III, 5-10% Group I or II, what's the rest of the base oil blend??!!!! With a -48C pour point, I'm extremely curious. Wonder if it is POE?
 
It has a very high density of 0.879, which makes me think it has quite a bit of ester and/or alkylated naphthalene. 0.84 or 0.85 something is typical of most 0W-40 oils. Many esters and AN's have densities over 0.9.
 
Originally Posted by JAG
It has a very high density of 0.879, which makes me think it has quite a bit of ester and/or alkylated naphthalene. 0.84 or 0.85 something is typical of most 0W-40 oils. Many esters and AN's have densities over 0.9.


AND, they don't appear on an MSDS AFAIK, which makes some sense of the above.
 
Thinking they'll use a bit of EHC GII+ as low man on that totem pole …
 
Originally Posted by 4WD
Thinking they'll use a bit of EHC GII+ as low man on that totem pole …


Likely, which I assume may be the last line of the MSDS.
 
This is the kind of cocktail I think of when generalizations get thrown around regarding base oils …
 
The Delvac Synthetic gear oil has been renamed into the Delvac 1 lineup …
I have used it in three G80 lockers now …
 
I think the solvent dewaxed heavy paraffinic distillate, which is Group I, is carrier oil from the additive package. https://www.machinerylubrication.com/Read/472/base-oil-industry
Oils considered to be full synthetic can use Group I for this purpose since it's not considered to be used as a base oil. I do not think Group II is used as additive carrier oil due to lower additive solubility and higher cost, relative to Group I. Using Group II as a base oil in a full synthetic is a big no-no, from a pseudo-legal standpoint.
 
Originally Posted by JAG
I think the solvent dewaxed heavy paraffinic distillate, which is Group I, is carrier oil from the additive package. https://www.machinerylubrication.com/Read/472/base-oil-industry
Oils considered to be full synthetic can use Group I for this purpose since it's not considered to be used as a base oil. I do not think Group II is used as additive carrier oil due to lower additive solubility and higher cost, relative to Group I. Using Group II as a base oil in a full synthetic is a big no-no, from a pseudo-legal standpoint.


For the bottom CAS #, from Shell, I find:
Originally Posted by Shell

Shell Process Oils linked to CAS number 64742-65-0:
-HVI 55
-HVI 60
-HVI 65
-HVI 105
-HVI 160
-HVI 170
-Catenex S 532
-Catenex S 541
-Catenex S 925
-Catenex S 932
-Catenex S 946


Which, when researched, yielded:
Originally Posted by Shell
Shell Catenex Oils S are paraffinic process oils manufactured via the solvent extraction process. They are general purpose process oils used as extender or carrier fluids


So I think you are bang-on the money.

The 2nd from the bottom is as I noted, Group III, which appears to be in very low volume in this product.
 
Originally Posted by JAG
It has a very high density of 0.879, which makes me think it has quite a bit of ester and/or alkylated naphthalene. 0.84 or 0.85 something is typical of most 0W-40 oils. Many esters and AN's have densities over 0.9.


I've been told in another thread that my 20 years of observations on density are incorrect....LOL
 
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