Mobil 1 ESP 0w40 in GM LS Engines

KRL is a shear test where you blast the oil through a diesel fuel injector to try and damage the VII polymers. It's much harder on VII's than actual service.
I thought it was a roller bearing if I'm recalling correctly the HPL lab activities shown in a LSJr video? If it was a diesel injector, I'd like to think I'd remember that, being has how diesel fuel system are my gig.
 
KRL(Kegelrollenlager,tapered roller bearing) is not Kurt Orbahn (Bosch Injector shear test) .

https://www.valoremchemicals.com.au...r-stability-test-methods-bosch-sonic-and-krl/

https://koehlerinstrument.com/wp-co...-Multi-Grade-Polymer-Thickened-Lubricants.pdf

While most engine oil specs demand 30 cycles of KO,most HDEO's and some PC specs need 90 cycles to evaluate shear stability . This is nowehere near a full-flegded KRL test of 20h. that would probably shread every bit of polymer in the oil ,so HPL and LSJr. used what was it...only 15minutes? of KRL when testing motor oils.
Good catch, yes, I was thinking of the Kurt Orbahn test, which is what's used for the OEM test sequences.
 
I thought it was a roller bearing if I'm recalling correctly the HPL lab activities shown in a LSJr video? If it was a diesel injector, I'd like to think I'd remember that, being has how diesel fuel system are my gig.
I was thinking of the Kurt Orbahn test.
 
For what it's worth, Mobil 1 ESP X4 0w-40 is a VW spec gas and light diesel rated motor oil, as well as Porsche C30 spec, and I believe is required in the newest Corvette models. It is a top notch Group IV PAO and 8 % Ester Group V base blend motor oil. Watch and learn.

 
That Mobil1 Supercar 0W-40 is going to go in my Toyota 22RE next oil change. A little extra viscosity to prevent a low warm idle pressure and can get flowing to the timing chain ASAP.

I would 100% feel confident running any of the Mobil 0W-40's in an LS, especially if driven enthusiastically.
FWIW, more pressure does not always equal more flow.
 
For what it's worth, Mobil 1 ESP X4 0w-40 is a VW spec gas and light diesel rated motor oil, as well as Porsche C30 spec, and I believe is required in the newest Corvette models.
Corvette calls for dexos R, which this oil, and many others, meet.
1782879356500.webp

It is a top notch Group IV PAO and 8 % Ester Group V base blend motor oil.
We have no idea what the ester content of this lube is, and neither does Lake. SDS shows majority GTL (25-50%) and 10-25% PAO:
1782879646890.webp

Watch and learn.
1782879566857.webp
 
For what it's worth, Mobil 1 ESP X4 0w-40 is a VW spec gas and light diesel rated motor oil, as well as Porsche C30 spec, and I believe is required in the newest Corvette models. It is a top notch Group IV PAO and 8 % Ester Group V base blend motor oil. Watch and learn.
The oil is Porsche C40 rated and is also suitable for Porsche A40 application (the previous standard). Those are currently the highest Porsche oil standards with the C40 emission system friendly.
The oil is also ACEA C3 rated which makes it suitable for turbo diesel engines as well.
https://www.mobil.com/en/lubricants/for-personal-vehicles/our-products/products/mobil-1-esp-x4-0w-40
 
Regarding the thread below and the MolaKula answer, it looks like esters are used at least as 7% of an oil formulation to create solubility. If I properly understood the subject.
https://bobistheoilguy.com/forums/threads/ester-content-and-oxidation-abs-cm-on-virgin-analysis.312548/
No, he's saying if esters are being employed to provide solubility, that ~7% will achieve that. We have no idea if that's the case here, given that it appears the bulk of the product is GTL-based and Shell doesn't use any ester in their GTL-based formulations for that purpose. You can also use Group I or Group II for some or all of that function, which is what additive packages often ship in.

Some examples from Mobil using PAO as the dominant base:
Screen Shot 2018-05-07 at 6.07.34 PM.webp


You can see they use 2% ester in the above formulations, I assume to improve solubility.
 
In comparing the chart that Overkill shared with us, it looks like the 5w-30 has a lower NOACK % than the 0w-30, which would be useful in GDI injection engines running crankcase ventilation through a PCV valve into your air intake, and coating your intake valves with carbon deposits.

8% vs 6%. for the 5w-30. Good to know since one of my cars has a VW EA 288 EVO motor in it, as well as one has the 1.5 TSI motor in it.

Thanks for the chart, Overkill. BTW, is there a link to that page, so that I might find out on my own what Mobil 1 Motorcycle 4T Racing 10w-40 has in it, much like that Mobil 1 ESP chart you provided? I tried the Exxon Mobil Chemical site, but navigation on it is out of my league, seems it's more for chemical engineers that know what they want to build with hydrocarbon building blocks. An organic chemistry whiz, I am not.
 
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In comparing the chart that Overkill shared with us, it looks like the 5w-30 has a lower NOACK % than the 0w-30, which would be useful in GDI injection engines running crankcase ventilation through a PCV valve into your air intake, and coating your intake valves with carbon deposits.

8% vs 6%. for the 5w-30. Good to know since one of my cars has a VW EA 288 EVO motor in it, as well as one has the 1.5 TSI motor in it.

Thanks for the chart, Overkill. BTW, is there a link to that page, so that I might find out on my own what Mobil 1 Motorcycle 4T Racing 10w-40 has in it, much like that Mobil 1 ESP chart you provided? I tried the Exxon Mobil Chemical site, but navigation on it is out of my league, seems it's more for chemical engineers that know what they want to build with hydrocarbon building blocks. An organic chemistry whiz, I am not.
Keep in mind, these are just example formulations. Mobil has produced many blending guides over the years, to show how their base oils and additive packages can be used to make certain types of lubes. Do not draw any conclusions about how Mobil products you are running are formulated from this, there could be some similarities or their could be none.

This 5W-30 has 8% Noack:

Screen Shot 2018-05-07 at 6.19.48 PM.webp
 
Keep in mind, these are just example formulations. Mobil has produced many blending guides over the years, to show how their base oils and additive packages can be used to make certain types of lubes. Do not draw any conclusions about how Mobil products you are running are formulated from this, there could be some similarities or their could be none.

This 5W-30 has 8% Noack:

View attachment 345788
Agreed, I wouldn't believe anything unless it was a limit imposed by an approval or license. There's no assurance some published value will be applicable at any particular time, unless it is a requirement by the license or approval.

People who fawn over a PDS or published 6% vs. 8% are betting on something that may not exist if the limit is 11%.
 
Keep in mind, these are just example formulations. Mobil has produced many blending guides over the years, to show how their base oils and additive packages can be used to make certain types of lubes. Do not draw any conclusions about how Mobil products you are running are formulated from this, there could be some similarities or their could be none.

This 5W-30 has 8% Noack:

View attachment 345788
Interesting 5W-30 PDS. I've never seen three different CCS ratings and the -30°C which is the 5W property is on the higher end because is over 6,200 cP.
Seeing the ACEA E4, E7, E8 rating makes me think that is a heavy duty diesel oil for commercial truck and busses. Those won't have issue pumping that oil at low temps.
 
Interesting 5W-30 PDS. I've never seen three different CCS ratings and the -30°C which is the 5W property is on the higher end because is over 6,200 cP.
Seeing the ACEA E4, E7, E8 rating makes me think that is a heavy duty diesel oil for commercial truck and busses. Those won't have issue pumping that oil at low temps.
Yeah, it's data you aren't going to get on a typical PDS, that's for sure. Mobil provided some great data with these old blending guide examples.
 
Isn't that car spec'd for Pennzoil 0W-40?
I know a guy who has the same car and told me that that's the GM recommended oil.

You are gonna be perfectly fine with the Mobil 1 ESP 0W-40. It's a great oil recommended by Porsche, it's DexosR rated (as GM requires), and also is easier to find than Pennzoil 0W-40. I wouldn't run any 30 grade oils in that engine.
The only downside is that it comes only in a quart bottles, not a 5 qts jug.
I was able to find this Mobil 1 ESP 0W40 in 5 qt jugs at my walmart.
 
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