New mobil 1 0w40 viscosity

[JonnyAbs]

Has anyone noticed that the new m1 0w40 Euro formula is now 13.8 cst at operating temp instead of 12.9? Many considered it a go to oil for many applications and just above a 5w30, but now it lands squarely in the 40 weight category instead of on the low end.

Maybe this has been discussed, but I just noticed it.

https://www.mobil.com/en/lubricants/for-personal-vehicles/our-products/products/mobil-1-fs-0w-40

 

[edyvw]

Has anyone noticed that the new m1 0w40 Euro formula is now 13.8 cst at operating temp instead of 12.9? Many considered it a go to oil for many applications and just above a 5w30, but now it lands squarely in the 40 weight category instead of on the low end.

Maybe this has been discussed, but I just noticed it.

https://www.mobil.com/en/lubricants/for-personal-vehicles/our-products/products/mobil-1-fs-0w-40

Oh boy!

 

[chris719]

HTHS is all that practically matters after the winter grade. I’m not sure 1 cSt makes much difference. It’s 7% thicker at 100 C.

 

[JonnyAbs]

Oh boy!

I almost didn't post it due to comments like this. But I did search and I saw a lot of discussion about calcium content and lspi. Not much about the kinematic viscosity difference though.

 

[JonnyAbs]

HTHS is all that practically matters after the winter grade. I’m not sure 1 cSt makes much difference. It’s 7% thicker at 100 C.

Where can you find that readily? I see it discussed on here, but I don't understand a lot about the metric, and I don't find it on product data sheets:

 

[chris719]

Where can you find that readily? I see it discussed on here, but I don't understand a lot about the metric, and I don't find it on product data sheets:

They don't disclose it anymore for some oils. It's widely believed to be 3.6 based on one datasheet that escaped and the HTHS of prior formulations.

 

[userfriendly]

Where can you find that readily? I see it discussed on here, but I don't understand a lot about the metric, and I don't find it on product data sheets:

View attachment 189556

When I saw the viscosity change I bought 6 jugs of it on sale with my Canadian Tire money.
It passes API SP, which was the deal maker for me.

 

[IndyFan]

Oh boy!

Isn't this a discussion forum? Isn't that the purpose of its very existence?

This kind of comment turns people off and makes them want to leave. It's very disappointing to see this.

 

[IndyFan]

Has anyone noticed that the new m1 0w40 Euro formula is now 13.8 cst at operating temp instead of 12.9? Many considered it a go to oil for many applications and just above a 5w30, but now it lands squarely in the 40 weight category instead of on the low end.

Maybe this has been discussed, but I just noticed it.

https://www.mobil.com/en/lubricants/for-personal-vehicles/our-products/products/mobil-1-fs-0w-40

Interesting.

Was there a change in viscosity at 40c?

I think I'm ok with this, though. I'm going to be running this oil in my Vette and if it is close to 30 weight, I don't see the point. Now it makes more sense, otherwise I'll stick with EP 5w30.

 

[travis8352]

Interesting.

Was there a change in viscosity at 40c?

I think I'm ok with this, though. I'm going to be running this oil in my Vette and if it is close to 30 weight, I don't see the point. Now it makes more sense, otherwise I'll stick with EP 5w30.

Its like 7 ish cst thicker at 40c. Previous was 71 ish. MRV @-40 went from 21,700 to 30,500

 

[Trav]

This is one of the reasons I went back to Castrol.

0W30 Euro

 

[buster]

The M1 0w40 that sits on the 30/40 grade is Supercar 0w40. HT/HS 3.56 and Kv of 12.8.

 

[JavierH19]

Yeah for over a year maybe two by now. Last discussion centered around having to increase the kv100 to keep the minimum hths up from believed reduction of base stock quality in the new formulation.

 

[edyvw]

Isn't this a discussion forum? Isn't that the purpose of its very existence?

This kind of comment turns people off and makes them want to leave. It's very disappointing to see this.

Just commenting what OP already knows it exists.

 

[edyvw]

This is one of the reasons I went back to Castrol.

View attachment 189577
0W30 Euro
View attachment 189578

Yep. And Mobil1 took out HTHS value from 0W40. I think they had it in SP formulation for some time at 3.6, which is not where other oils are with comparable KV100.
Also, interestingly, EU version of SP doesn’t have BMW LL01 while the US has, at least on pdf.

 

[Johnny248]

The M1 0w40 that sits on the 30/40 grade is Supercar 0w40. HT/HS 3.56 and Kv of 12.8.

Does the Supercar "clean" as well as the FS is supposed to?

 

[buster]

Does the Supercar "clean" as well as the FS is supposed to?

No idea.

 

[IndyFan]

Just commenting what OP already knows it exists.

It came across as pretty rude, and I´ve seen more and more of that on this site. Sorry if I misinterpreted, but I don´t think I was the only one.

 

[IndyFan]

Yep. And Mobil1 took out HTHS value from 0W40. I think they had it in SP formulation for some time at 3.6, which is not where other oils are with comparable KV100.
Also, interestingly, EU version of SP doesn’t have BMW LL01 while the US has, at least on pdf.

Did any of the certifications or approvals change from the old formula to the new?

 

[edyvw]

Did any of the certifications or approvals change from the old formula to the new?

Yes. LL01 was added. But that is BMW change. They reintroduced 0WXX oils into LL01 and LL04.