2024 AMG oil

[Japanese]

That oil won’t get “too thin” in 6,000mls bec. driven hard etc. It is MB approved oil, it is not regular synthetic ILSAC stuff.
I run 5,000 OCI with extensive track use and sessions as long as 1 1/2hrs.

Is that on a V8 bi-turbo engine?
You don't need a track to over heat the oil. That can happen on the street too, especially if the oil level is not in specs. Does that specific MB model have an oil temp. monitoring? (the OP car)

 

[edyvw]

Is that on a V8 bi-turbo engine?
You don't need a track to over heat the oil. That can happen on the street too, especially if the oil level is not in specs. Does that specific MB model have an oil temp. monitoring? (the OP car)

You can get oil on street to 300f?
Probably it has oil temperature gauge. But I know for sure oil cooling system can cool off 18 wheeler.

 

[Japanese]

Thanks.
300°F for a street car is a serious temp.

I run 5,000 OCI with extensive track use and sessions as long as 1 1/2hrs.

Also, how many miles is 1.5 hours on the track?
Do you change the oil after that or after how many track hours do you change your oil?

 

[edyvw]

Thanks.
300°F for a street car is a serious temp.


Also, how many miles is 1.5 hours on the track?
Do you change the oil after that or after how many track hours do you change your oil?

You won’t hit 300f on street or hwy. You just don’t have that time to keep it that high in rpms and this altitude.
1.5hrs, huh, not sure, a lot. Like 4lbs lighter my self after that bcs. it is 101f outside and heat is at max with full vent to help cool off coolant.
No, I change it at 5k OCI. I have one UOA on Castrol Edge 0W40 with that kind of abuse and no any sign of shearing or more wear. I will post it later here.

 

[Scott Baer]

Hello all. I’m back with results…

 

[edyvw]

Hello all. I’m back with results…

View attachment 305234

Best case scenario is that copper is coming from oil cooler.
But it could be some of the bearings. Is noise still present?

 

[Scott Baer]

Knock is gone after oil change.

 

[Japanese]

At 3000 miles, this motor is having same knock!!! I have not even addressed it yet with the dealership, other than an early oil change at 6,000 miles.

...forgot to mention... the dealership had to add 1 1/2 quarts of oil (I think there are 9 total) at ~4500 miles if that is useful info.

Hi Scott,
I went back and reread some posts because we see pictures of the previous engine (currently in Germany for inspection), but all the posts and oil talk are about the new vehicle and its engine.

So, my logical thinking tells your engine might run low on oil at some point about 3,000 miles and you started to hear a knock. Then you visited the dealership (for some reason or did tell them specifically about the knock and low oil level?) at 4,500 miles. They saw the engine is low on oil and added 1.5 qt of oil which is 17% out of the total 9 qt oil. This is my hypothesis which could be completely wrong.
Were you aware of low oil level before you visited the dealership?
Do you have an oil dipstick or the oil level is solely monitored by a computer?
Did the knock appear again after they added the oil at 4,500 miles?

Usually on engines with 3-5 qt of oil, the amount on the oil dipstick b/w min. and max. is about 1 qt. (1 liter). However, 1 qt of oil on 3 and 5 qt motors is respectively 33% and 20% of oil. At first look it looks like 17% of oil loss would not be that crucial for your engine, but who knows.

BTW... yes, both vehicles were totally babied during break-in. I was very careful not to exceed recommendations that are posting in view on a sticker in the windshield and addressed several places in the manual.

Just had it out running, after oil change… nice and hot. Parked it in idle. No more knock… for now.

Isn't the bolded text in the quotes above contradictory or "nice and hot" means you pushed the car within the break-in limits?

 

[Japanese]

Hello all. I’m back with results…

Regarding the oil analysis:
I'm far from an expert and we are not familiar what are the normal break-in values for that engine, in general - iron and copper are high. The oil viscosity dropped to 11 cSt which is in the middle of typical viscosity for 30 grade oil (as mentioned in the report), regardless of the added 1.5 qt oil.

If I was you I would either ask the dealership to change the oil when it's time for adding more oil and get a sample for analysis OR if not possible, I would change the oil at 5,000 miles (and get a sample for analysis), instead of 6,000.
However, the make up oil added doesn't really show us how the oil properties diminish with the mileage because of the fresh oil.

You can use any of these oil labs next time, according to your budget. Their analysis are a bit more realistic from what people observe on here.

Oil Analyzers Inc
https://www.oaitesting.com/services.aspx

Polaris Labs
https://polarislabs.com/contact/

SpeeDiagnostix
https://www.speediagnostix.com/pages/the-process

 

[Scott Baer]

Hi Scott,
I went back and reread some posts because we see pictures of the previous engine (currently in Germany for inspection), but all the posts and oil talk are about the new vehicle and its engine.

So, my logical thinking tells your engine might run low on oil at some point about 3,000 miles and you started to hear a knock. Then you visited the dealership (for some reason or did tell them specifically about the knock and low oil level?) at 4,500 miles. They saw the engine is low on oil and added 1.5 qt of oil which is 17% out of the total 9 qt oil. This is my hypothesis which could be completely wrong.
Were you aware of low oil level before you visited the dealership?
Do you have an oil dipstick or the oil level is solely monitored by a computer?
Did the knock appear again after they added the oil at 4,500 miles?

Usually on engines with 3-5 qt of oil, the amount on the oil dipstick b/w min. and max. is about 1 qt. (1 liter). However, 1 qt of oil on 3 and 5 qt motors is respectively 33% and 20% of oil. At first look it looks like 17% of oil loss would not be that crucial for your engine, but who knows.




Isn't the bolded text in the quotes above contradictory or "nice and hot" means you pushed the car within the break-in limits?

I went to the dealership the first time around 4500 miles specifically because the digital gauge was at the low range. I wouldn't have even known it was near low if I would not have gone to the service menu to look.

There is no dipstick

There was still a slight knock even after they added the 1 1/2 quarts at 4500 miles. not as prevalent, tho. You would really have to know what you were listening for. No Knock after the recent oil change at 6000 miles.

Break in was for the first 1000 miles. The "nice and hot" referenced only that the motor was up to temp and the oil was at operating temp (not cold). Also, this observation was recent, after the latest oil change around 6,000 miles - well after break-in.

 

[Scott Baer]

Regarding the oil analysis:
I'm far from an expert and we are not familiar what are the normal break-in values for that engine, in general - iron and copper are high. The oil viscosity dropped to 11 cSt which is in the middle of typical viscosity for 30 grade oil (as mentioned in the report), regardless of the added 1.5 qt oil.

If I was you I would either ask the dealership to change the oil when it's time for adding more oil and get a sample for analysis OR if not possible, I would change the oil at 5,000 miles (and get a sample for analysis), instead of 6,000.
However, the make up oil added doesn't really show us how the oil properties diminish with the mileage because of the fresh oil.

You can use any of these oil labs next time, according to your budget. Their analysis are a bit more realistic from what people observe on here.

Oil Analyzers Inc
https://www.oaitesting.com/services.aspx

Polaris Labs
https://polarislabs.com/contact/

SpeeDiagnostix
https://www.speediagnostix.com/pages/the-process

Will follow your recommendation. thank you! counple Qs, tho.... isnt 11 a bit on teh low side? Also, they state that this report is line with other W177 motors during break-in. wouldn't some metals and such be elevated because of break-in?

 

[FowVay]

The

Will follow your recommendation. thank you! counple Qs, tho.... isnt 11 a bit on teh low side? Also, they state that this report is line with other W177 motors during break-in. wouldn't some metals and such be elevated because of break-in?

The range for a xW-30 is 9,3cst - <12,5cst. The 11cst is in the middle and greater than most non-Euro xW-30 products.

 

[kschachn]

The

The range for a xW-30 is 9,3cst - <12,5cst. The 11cst is in the middle and greater than most non-Euro xW-30 products.

And considering the demonstrated inability of Blackstone to accurately measure viscosity I’m not sure how much that matters.

 

[Japanese]

Also, this observation was recent, after the latest oil change around 6,000 miles - well after break-in.

You are welcome.
So, you're done with the break-in? How many miles the Mercedes states as break-in period for that engine?

I went to the dealership the first time around 4500 miles specifically because the digital gauge was at the low range. I wouldn't have even known it was near low if I would not have gone to the service menu to look.

So, we don't know at what mileage the oil level dropped to min. or below and we don't know how many miles did you drive after that?
Why do you need to go through a service menu to find that out? You don't have a red light on the dash that comes off when oil level is about min.?
Well, we don't know if 1.5qt bring the oil to min. level, but that is highly possible because it was saying "low oil level" on the servise menu.

Try to get an oil sample before you add in make up oil, regardless of the mileage. But I still think it's better to change the oil instead of adding more oil.

Just keep an eye on the oil level in the service menu and go to the dealership right away when it comes off again.
Best thing would be to have a couple of quarts of the same oil and add it yourself, but let them deal with it.

Did they warn you initially that you should watch your oil level?

 

[FowVay]

And considering the demonstrated inability of Blackstone to accurately measure viscosity I’m not sure how much that matters.

I agree. And why on earth are they still publishing the SUS viscosity? That hasn't been a standard in ages.

 

[Scott Baer]

You are welcome.
So, you're done with the break-in? How many miles the Mercedes states as break-in period for that engine?


So, we don't know at what mileage the oil level dropped to min. or below and we don't know how many miles did you drive after that?
Why do you need to go through a service menu to find that out? You don't have a red light on the dash that comes off when oil level is about min.?
Well, we don't know if 1.5qt bring the oil to min. level, but that is highly possible because it was saying "low oil level" on the servise menu.

Try to get an oil sample before you add in make up oil, regardless of the mileage. But I still think it's better to change the oil instead of adding more oil.

Just keep an eye on the oil level in the service menu and go to the dealership right away when it comes off again.
Best thing would be to have a couple of quarts of the same oil and add it yourself, but let them deal with it.

Did they warn you initially that you should watch your oil level?

Yes. Break in is well over with. It is 1000 miles. I am now at 6500 or so

Very little after the electronic gauge was in the low area. It never warned me in any way. I only noticed it on the digital gauge as shown in the pic. It was reading where the yellow arrow indicates. teh resolution of the gauge is where the yellow tick marks are.

They never warned me to watch the oil level.

Thank you for your input.

 

[Hohn]

Yeah, that is not oil issue. Inadequate viscosity can lead to premature wear over xxxxx miles. Or some excessive wear on track for example. But those bearings, that is a manufacturing issue.
It could be that they have issues with the supplier. I would return car, get something else.

I can tell from experience-- making lead free bearings work has been dastardly difficult.

Those certainly appear to be lead free to me. Probably from Mahle. Lead free is just soooooo unforgiving.

 

[Hohn]

Is that really an AMG engine or just a 177? Bearings not hardened properly? MB has had that problem with suppliers before.

Properly hardened? IN a bearing? Say more.

 

[Hohn]

No. everything was performed as per the direction of the Mercedes rep and the Mercedes engineers. I did not get a repair order. perhaps because the car was not "mine" by the end of the process. I never took it back once it was taken to the dealership. they ended up replacing the motor which was $100k and sold it to someone.

$100k? For an engine? I could see maybe the entire car.... Typo perhaps?

 

[Scott Baer]

$100k? For an engine? I could see maybe the entire car.... Typo perhaps?