Mobil 1 5w50

[LSoilguy]

 

[addyguy]

That’s a 40-weight, not a 50-weight oil.

 

[LSoilguy]

I've really only seen 40's in the 12.xx range with some outliers in the 13, that would be a thick 40w.

 

[LSoilguy]

I'll add that I've run two different 40s in my car and my hot idle was 10 psi lower than I am right now with this stuff.

 

[RooflessVW]

That’s a 40-weight, not a 50-weight oil.

Consider the lab that ran the test.

 

[himemsys]

Consider the lab that ran the test.

Castrol Edge Full Synthetic 0W-20	SP	01/22/22	Blackstone	0	0	0	0	0	0	65	0	0	0	18	0	125	7	3	911	761	710	834	0	52.8	8.12	425	6.4
Castrol Edge Full Synthetic 0W-20	SP	03/31/22	PQIA	0	0	0	0	0	0	73	0	0	0	20	4	138	12	4	943	722	758	828	0		8.6			9	11.9	170	5518

Castrol advertises the viscosity as 8.18. Blackstone is way closer in this case.

Amsoil SSO 0w-30	SP	07/27/21	WearCheck	0	0	0	0	0	0	201	0	0	0	0	0	353	5	3	1162	816	620	755	0		10.77			10.2
Amsoil SSO 0w-30	SP	08/05/21	Blackstone	1	0	0	0	0	0	204	0	0	0	0	1	316	6	6	1180	909	692	774	0	61.1	10.67	440	7.9

Everything lines up pretty close between these two.

Pennzoil Ultra Platinum Full Synthetic 5w-30	SP	03/04/22	PQIA	1	0	1	0	0	0	86	0	0	0	0	0	310	4	0	1164	753	708	789	0		10.1			8.5
Pennzoil Ultra Platinum Full Synthetic 5w-30	SP	04/09/22	Blackstone	1	0	1	0	0	0	91	0	0	0	2	1	273	4	1	1189	846	694	820	0	59.1	9.97	445	7.4

Once again, very close.

I'm not saying BS is perfect. They use an inferior fuel% method and they make mistakes like all the other labs do. It's just magnified because they have such a big chunk of the business. But you guys want to keep bashing them like they are a bunch of incompetent idiots.

 

[redhat]

Thanks for this. This is the oil that I run in my Polaris ATVs. M1 FS X2 5W-50 is wayyyy cheaper than the Polaris PS4.

 

[LSoilguy]

Thanks for this. This is the oil that I run in my Polaris ATVs. M1 FS X2 5W-50 is wayyyy cheaper than the Polaris PS4.

I've seen the Polaris oil is also less than stellar.

 

[Accent Abuser]

SAE j300 would not even allow it to be rated as a 50 under 16.3cst. For whatever reason Blackstone always shows viscosity as lower than it really is. Their "values should be" isn't even right either. Should say 16.3-21.9.

 

[Bjornviken]

SAE j300 would not even allow it to be rated as a 50 under 16.3cst. For whatever reason Blackstone always shows viscosity as lower than it really is. Their "values should be" isn't even right either. Should say 16.3-21.9.

Maybe a reason M1 dont show it on typical spec And aslo arent the Porsche approval A40 based on xx-40 viscosity

 

[kschachn]

Maybe a reason M1 dont show it on typical spec And aslo arent the Porsche approval A40 based on xx-40 viscosity

It is based on a minimum HT/HS value. It may have allowed grades but the technical basis is the HT/HS.

 

[wings&wheels]

Thanks for posting, my go-to oil on the Porsches and the Rover diesel, but after a discussion w/ a few other P'car folks, I may switch to Redline 10w-50...

 

[Bjornviken]

Thanks for posting, my go-to oil on the Porsches and the Rover diesel, but after a discussion w/ a few other P'car folks, I may switch to Redline 10w-50...

don't now if i go with mobil delvac 1 5w-40 or m1 5w-50 in my land cruiser (diesel), Probably the m1 5w-50 have work good in your Rover diesel?

 

[wings&wheels]

don't now if i go with mobil delvac 1 5w-40 or m1 5w-50 in my land cruiser (diesel), Probably the m1 5w-50 have work good in your Rover diesel?

Hi, yes, but the engine has less than 10k mi/16K km. The oil pressure is very high, so I am thinking of the Delvac 5w-40, but I have not had any issues w/ the 5w-50. Both are very good choices. Given your local climate, I may go w/ the 5w-40, but either will be excellent choices.