xW-40 vs xW-30 for Mercedes V6 M272?

[OVERKILL]

It was a rather rhetorical question. Again, approvals are about meeting the bare min. They are still of value as that guarantees that you meet the min. But no means promise you the max. They should be more valuable for people that are not on this forum and don't have access to vast information on oil quality

A40 = oil has passed simulated lapping of the Nurburgring followed by a tear-down with measurements in a Porsche gasoline twin turbo engine. 229.5 consists of a litany of actual gasoline engine tests.

What comparable performance tests do you feel Rotella has that establishes a "bare minimum" at a higher bar?

 

[edyvw]

It was a rather rhetorical question. Again, approvals are about meeting the bare min. They are still of value as that guarantees that you meet the min. But no means promise you the max. They should be more valuable for people that are not on this forum and don't have access to vast information on oil quality

The key is: what is “bare minimum.”
You obviously don’t grasp that part.

 

[kschachn]

It was a rather rhetorical question. Again, approvals are about meeting the bare min. They are still of value as that guarantees that you meet the min. But no means promise you the max. They should be more valuable for people that are not on this forum and don't have access to vast information on oil quality

How do you measure the max? And where is that spelled out?

Approvals such as A40 and 225.9 aren’t ranges. And they are anything but a “min” in terms of performance. Are you suggesting Rotella meets the max?

 

[folzag2]

Your engine can run on MB 229.5 and MB229.51/52.
That engine in Europe ran on MB229.51 since 2009.

Yes, I was aware. But my question was really about slightly thinner 30 weight being ok for this engine, or is there reason to favor a 40.

As for long OCI's, both M1 0W40 FS and M1 ESP 0W30 are approved for long drain approvals that require 18k OCI (BMW LL01, or in case of ESP, VW 504.00).

I was not aware about that about ESP.

Personally, I would run Pennzoil Platinum Euro 5W40 if available at a good price. Running M1 0W40FS won't do any harm. It is exceptional oil. Base stocks matter, but what really matters is the final product.

I mean, the 5qt jugs from Walmart are all within a couple dollars of each other delivered to your door.

Yeah, they are all exceptional products, but ESP seems to be more exceptional, all things equal, which for me means 5qt jug pricing which implies the 30 weight ESP, which is not necessarily all things equal anymore.

Ok, interesting take about PPE. May I ask your reason why?

There's very little difference between a Euro 30 and Euro 40 in terms of viscosity. The 30 is at the highest end of HTHS for a 30 and 40s are at the low end.

Right. But it is a difference, which prompted me to wonder and to ask.

Thanks.

 

[jsean]

Just continue running a MB229.5 or 229.51/2 as others have mentioned. I’ve run M1 5w40, M1 0w40 and Pennzoil Platinum Euro depending on availability, pricing, etc.

Tons of old threads on Benzworld about suitable oils for the M272.

 

[Plumb Bob]

Just continue running a MB229.5 or 229.51/2 as others have mentioned.

Indeed. Leave Rotella where it belongs: Heavy Duty Diesels.

 

[folzag2]

Just continue running a MB229.5 or 229.51/2 as others have mentioned. I’ve run M1 5w40, M1 0w40 and Pennzoil Platinum Euro depending on availability, pricing, etc.

Tons of old threads on Benzworld about suitable oils for the M272.

It's hard not to cuss. Everything mentioned in the OP is 229.5/51. So, yeah, I know. I'm also not interested in old threads about old oils. This is a new thread about new oil, albeit in an old engine.

The question was not about selecting 229.5 or 229.51. The question was between 40 weight w/o PAO & esters and a 30 weight with PAO and esters.

 

[folzag2]

Have you thought about Rotella? Probably that's what I would use if I had your MB. Should not be an issue to find 5quart jugs

You're a troll. You know how I know you're a troll, because a real person would know HDD oils are sold in 4qt jugs, not 5qt jugs. Get your own thread and leave us alone. TYA.

 

[jsean]

It's hard not to cuss. Everything mentioned in the OP is 229.5/51. So, yeah, I know. I'm also not interested in old threads about old oils. This is a new thread about new oil, albeit in an old engine.

The question was not about selecting 229.5 or 229.51. The question was between 40 weight w/o PAO & esters and a 30 weight with PAO and esters.

I think you’re missing the point what folks are telling here. Your vehicle, so it’s your decision at the end.

Doesn’t matter if it’s x40 or x30 - as long as it meets 229.5/51/52. Have you looked up the specs? MB even gives you the entire listing of all oils that meet requirements.

 

[folzag2]

I think you’re missing the point what folks are telling here. Your vehicle, so it’s your decision at the end.

Doesn’t matter if it’s x40 or x30 - as long as it meets 229.5/51/52. Have you looked up the specs? MB even gives you the entire listing of all oils that meet requirements.

If it doesn't matter why do you keep derailing my question with your off-topic non-answers? Rhetorical. Don't answer that.

 

[jsean]

If it doesn't matter why do you keep derailing my question with your off-topic non-answers? Rhetorical. Don't answer that.

Since you claim you know the specs, you’d also know that approved x30 oils are listed and available. So why even start this pointless thread and be snippy with everyone? Rhetorical. Don’t answer that.

 

[folzag2]

Guy with pointless answers -- says he's only ever run 40 weights and moreso just follow the specs, as if the latter has not been said a thousand times before -- gets mad that guy asking OP is mad that another thread is turning pointless because guys with pointless answers keep weighing in with pointless answers.

Original question:

Anybody know how these engines fair on a thinner oil? Does it matter?

 

[chris719]

Right. But it is a difference, which prompted me to wonder and to ask.

The answer is there is no practical difference, or they would not be allowed under the same specifications. I would have zero reservations using a 30 vs 40 Euro oil as long as it was at least 3.5 HTHS.

 

[scrllock]

It's hard not to cuss. Everything mentioned in the OP is 229.5/51. So, yeah, I know. I'm also not interested in old threads about old oils. This is a new thread about new oil, albeit in an old engine.

The question was not about selecting 229.5 or 229.51. The question was between 40 weight w/o PAO & esters and a 30 weight with PAO and esters.

Anybody know how these engines fair on a thinner oil? Does it matter?

The grade isn't really a big difference between the oils at hand (30 grade euro vs M1 0w40). Minor differences in KV100, either could be 3.6 HTHS and be basically identical from a protection standpoint. Remember that HTHS doesn't scale indefinitely. The important thing here is protection after XX,XXX miles. And the only way we can realistically make a determination about which oils meet that is approvals. You can compare UOAs but remember, the purpose of an UOA is to tell you if you can use the oil longer. It does not tell you if the motor is actually doing "better" with one oil or another, just if there is catastrophic failure.

The answer is there is no practical difference, or they would not be allowed under the same specifications. I would have zero reservations using a 30 vs 40 Euro oil as long as it was at least 3.5 HTHS.

this.