Q: About today's Mobil 1 0W-40 line up

I wouldn't necessarily, but where's the proof of AN content? Lack of ester is not proof of AN presence per se.
As I understand it won't show up in a UOA. However, iirc it's needed to insure cleanliness, additive solubility and seal compatibility especially with regards to Gr3+ which behave more like PAO. I would be surprised if any modern euro approval could be met w/out either AN or ester in the mix.
 
That is what I have always heard.... Especially so with Diesel engines. And if I'm not mistaken, don't the modern, exhaust regurgitating Diesels have the computer programmed from the factory, so it will only allow the engine to provide limited power until the engine is warm enough to give full output? This to prevent any damage.
Yes, at least euro Trucks does it. Also Our newer Volvo Rigs turn off the engine after a awhile if you idling them to long, think its after 2-3 minutes if i remember correctly.
 
Heres how i understand it
-Esp 0w40 became supercar 0w40. GTL/ester
-fs 0w40 changed to SP. PAO/GTL/GII/GIII
-esp x3 0w40 is SN and GTL/ester and smidge of PAO
-c40 gt 0w40 is gtl/ester and smidge of PAO
-esp x4 is PAO/GTL/ester and has A40 and C40
 
Heres how i understand it
-Esp 0w40 became supercar 0w40. GTL/ester
-fs 0w40 changed to SP. PAO/GTL/GII/GIII
-esp x3 0w40 is SN and GTL/ester and smidge of PAO
-c40 gt 0w40 is gtl/ester and smidge of PAO
-esp x4 is PAO/GTL/ester and has A40 and C40

Thank you. However, isn't the ESP x 3 the one that became Super Car? According to Mobil, the new ESP 0W-40 is ESP x 4.

https://www.mobil.com/en/lubricants/for-personal-vehicles/our-products/products/mobil-1-esp-x4-0w-40
 
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I would forget the names, "formulation" and the marketing ... You won't be able to keep up.

I would compare the approvals! 👈
The problem is that I don't think the approvals follow the oil once it is rebranded. For example, the ESP x 3 0W-40 has a lot more approval than the Super Car 0W-40 does but they are the same oil.

ESP.Supercar.webp
 
There's no proof they're the same oil, it's an assumption based on VOA.

Nope esp 0w40 became supercar 0w40. At one time there was esp 0w40 and esp x3 0w40 before the switch. Esp 0w40 was for corvette and esp x3 for porsche

This is obviously false given the specs M1 provides were completely different for ESP 0w40.
 
There's no proof they're the same oil, it's an assumption based on VOA.



This is obviously false given the specs M1 provides were completely different for ESP 0w40.
No, ESP became Supercar and GM and Mobil both confirmed the product is the same other than bottle. It may have been revised once but it definitely was the exact same oil at one point.
 
The problem is that I don't think the approvals follow the oil once it is rebranded. For example, the ESP x 3 0W-40 has a lot more approval than the Super Car 0W-40 does but they are the same oil.

View attachment 265757

Are you 100% sure that they are exact same oil? But it doesn't matter anyways, eliminate guessing.

If my car required or recommended a specific approval(s), I would get a oil with that approval. Not something else that I perceive is the same or even better. If the writing is not on the jug, they can pull the rug out from under you! :ROFLMAO:

Sound like you drive a Ferrari. No? What does your owner's manual recommend?
 
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Best advice I've come across on both how and why to warm up your engine properly..... Be it Diesel or gas

I never idle my engine to warm it up no matter how cold it is outside. The one thing I have noticed with my Civic is if I turn the heat all the way down to the lowest setting it warms up noticeably quicker, the temperature gauge will hit the first bar about a mile sooner with the heat off vs the same route but with the heat on. That’s pretty significant!
 
0w40 ESP:

Screenshot 2025-03-01 at 11.23.55 AM.webp


0w40 supercar:

Screenshot 2025-03-01 at 11.24.29 AM.webp

Maybe at one point it "became" supercar, but the supercar formula now is not what ESP was and suggesting someone can just buy the new product to get the old one is incorrect.
 
Just heard it today - son's buddy with a new MK8 Golf R...calls for VW504 so 0W30 typically. Told dealer to run a 502/5W40 b/c "it's better". Folks really don't get this approvals thing or that the 0W30 is more than stout enough for that car/has the same HTHS as the 40 grade and really isn't much lower in viscosity. 502/5W40 certainly won't hurt it I know that....I really think he was scared of the 0....
100% 502 and 504 are basically the same “stoutness”, but 504 is best for DI motors; lower saps and calcium. If that dealer really new their stuff, then should have recommended vw 511 00 is they wanted more protection with the same benefits of the 504’s lower carbon deposits and LSPI negating benefits.
 
100% 502 and 504 are basically the same “stoutness”, but 504 is best for DI motors; lower saps and calcium. If that dealer really new their stuff, then should have recommended vw 511 00 is they wanted more protection with the same benefits of the 504’s lower carbon deposits and LSPI negating benefits.
How do those approvals have lower carbon deposits?
 
How do those approvals have lower carbon deposits?
504 added requirements for intake valve deposits.

None of the VW approvals have an LSPI requirement so I'm not sure what he's talking about there. ZDDP reduces LSPI (if it were an actual issue) so a full SAPS 502 oil would be preferred if it were.

I think 504 actually has stricter wear tests than 511, but the flaw in his thinking is that a spec for a minimum isn't exceeded by one oil or another. If it wasn't, we'd never compare anything but approvals.
 
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