My Bluetecs are allowed to run on 229.51 oils as well, but reading about those seized engines, I think spending few extra bucks for 229.52 oils is good decision. Especially when you get some of that money back in 3% fuel savings the better oils deliver.

Do you know specifics why Toyota extended the warranty? I doubt they did it voluntarily, so most likely they had class action lawsuits, just like Bluetecs did have with MB.
Now those MB engine seizing are just handfull incidents in big thousands of Bluetecs on US roads. I follow the fate of the guy starting the topic and he did not seek lawyer advise, while he screw up service terms. That gave MB USA excuse to close the case.
Till something like that happens to a hot-shot lawyer, the case will not go farther.

I'm talking about going back to the 228.51 spec to get the CK-4 rating.

you read too much tjts propaganda.
I trust MB engineers and rather listen to their recommendations, eventually even going farther with oil quality than min requirements.

MB has that recommendation for OM651 engines (and certain 642) on there website CURRENTLY. This means that it is perfectectly acceptable and recommended by the MB engineers. If it was the cause of the issue in my mind they would have removed that allowance long time ago. Just my opinion though.

That is the one thing I dont really care for with the oil, generally when they increase fuel mileage via thinned out oil it is at the expense of the engine longevity. And no I am not agreeing with the other poster on this thread necessarily, just saying lots of these oils are used/required/recommended by manufacturer so they can meet certain epa requirements on fuel mileage and theoretically last the engine warranty. EPA couldnt give 1 F about the over all impact just the rated fuel mileage and emissions upon sale. Instead of having a engine last 500k miles they would rather make them look good intially and only last 150k miles because producing 2 or 3 times as many vehicles per 1 is sound environmental advice.

My Bluetecs are 206k, 160k and 130k miles.
When I am not original owner of any of them, I run them on what you call "thinned oils" and I do oil lab test to prove that what I am doing is right.
The years when oil viscosity was giving main protection are long gone. Now it is chem pack, with lubrication improvements what counts. Beside chemical neutralizers who balance emission byproducts.

For Canadians
Pezoil Platinum Euro LX 0w30 229.52 spec is on sale @canadian tire now for $39.99 for 5L.
when you buy 2 jugs, you can apply for cash rebate of $20 from penzoil .

https://www.pennzoil.com/en_ca/promo...jM5MV85My9jYS8

For USA friends, there are rebates too. Visit their site.

Yeah we shall see. Hoping my e250 gets to 350k miles (about 93k miles now). My truck cummins 6.7 at 167k miles is doing just fine (knocks on wood). My dads ford 7.3 vehicles are at 400k and 475k miles and still working jobs, his 6.7 ford is at 180k miles still doing good. Those obviously are using diesel oils 15w40s. I am still skeptical of these low viscosity fuel efficient focus oils that have bunch of stuff added to try and keep them working thru regularly schedule oil changes but thats just me. Stuck in old ways that work I guess. Use them in the wifes kia because its still under warranty and dealership does everything to the car (thankfully), my benz I am not sure what I will be putting in it going forward since ran out of my 229.52 oil that I had. Used 229.51 till 76k miles from what I can tell so survived on the inferior oil.

Baloney belongs in the Deli, not oil threads.
The MB 229.5X oils were designed as light duty diesel engine oils with ash dispersants, They are ACEA C3 class oils that happen to also be suitable in many gasoline engines.
By the "logic" employed by some, many HDEO oils are also gasoline rated, so they must not be good for diesel engines!!! Don't use that Rotella or Delo, it's for gas engines!!!
Dual rated oils are desirable from a logistics and bean counting view. Being a professional logistician for the Navy/Marine Corps for 35 years, I am pretty sure that purchasing, shipping, storing, and handling one product is less expensive and more efficient than having to do the same for multiple consumables. Especially for bulk items.
Hence, "rationalization" by the OEM to dealer network and vehicle fleets to one oil that meets multiple requirements.

MB doesn't spec thin, watery, inadequate oil. The 0/5W-30 229.5x oils are almost as thick as a 40. It's the HTHS >3.5 that is the defining spec that makes many other oils not meet C3, MB, BMW, and VW specs.
Many truck fleets are running SAE 30 oils in their big engines on the highway. It isn't too thin.. They're all >3.5 HTHS oils.

Old ways go with old engines. People still swear by diesel fuel and transmission fluid oil flushes. It's antiquated and should go the way of heating houses with coal.
SAPS content greater than .08 isn't good for DPFs in any DPF equipped Euro diesel car by any OEM. BMW and VW spec the same low SAPS.

Your engine, your money, don't care what you do. But don't tell other people that you know more than the people who designed the engines and oil. Saying MB spec oil is inadequate or bad or only for gasoline engines is false, wrong, and harmful.

Appreciate the inpu and good info. FYI I cant bold my responses and they are inserted into you quote above.

Amen.

And is not the recommended weight for OM651 or OM642. You want the Euro L and the AV flavors, which are 5W-30.

What? It's a 0W-30... who says it is not the recommended weight? Just because most 229.52 oils are 5W-30, it doesn't follow that a 0W-30 is not recommended. When the oil is cold cold, it is a little thinner than a 5W-30 - which, all other things being equal, is a plus as it helps with cold startups and 90% of engine wear occurs at startup... and when it is warm, it's a 30 weight (at 100C it has a viscosity of 11.9 cSt). It's a decent oil that is made from LNG instead of hydrocracked crude or being synthesized in a lab... absolutely nothing wrong with that.

0W-30 (and 0W-40) are listed in my owner's manual.

Time for the BEVO official MB approved oil lists again.
Read them and see that Diabolis and Johnny CC are correct, and some others just don't do their homework.

MB 229.51 Official @MB

MB 229.52 Official @MB

Been driving a 2008 E320 w/DPF (no ADBlue) since 2008 and the worst I've ever had is replacing the Batwing for bad MAFs after 14 years!
Nothing internal to the Engine nor DPF. Why? Following the BEVO!!! I do not follow internet hearsay, the old ways gramps did, or use HDEO with too much ash.
By the way, Gramps died in the 1960s and so did his ways of doing things. I'm Gramps now, so do it my way!
I have my Gramps' old Ford wrench from the 1920s if you want to try changing your O2 sensor with it. He also put sand in his tires during WWII because they wouldn't go flat during the rubber shortage. Want to try that?

Cool gasoline oils you got there, bro.

Q: Just for clarification I assume all the 15w40 oils are greater than 3.7 Correct me if I'm wrong.
A: It varies by manufacturer and specific product, but mostly yes, in that neighborhood, 3.7 to about 4.

Q: "whats the difference from euro DPFs to US DPFs in diesel applications or Italian Japanese .... for that matter? Not arguing lower is better but less than 1.0 is the standard for most vehicles over here, and they are usually less then that when tested.........
A: Eurocar DPFs are small, very small. US DPFs are huge in comparison. Pickup trucks have DPFs larger than the mufflers on Eurocars.. Big trucks, like semi's and dump trucks, etc., have huge DPFS that are designed to be dismantled and cleaned commercially. Low ash HDEOs are designed around an ash content of 1. I have never seen a manufacturer's (Shell, Castrol, Mobil, etc) spec sheet that shows less than 1. Could be some, but the standard is 1.
Size matters.. You can see the DPF on an OM642 car on the right/passenger side of the engine. It has an O2 sensor in the middle and a temp sensor facing towards the turbo, It's tiny relative to a truck.

Sorry, for the Japanese diesel cars, I have no experience as they are few and far between here.

European engines most of the time do have completely different tunes, when I am often finding whole list of modules are different.
I have MaxiEcu scanner, made for European cars and too often my US modules are "unknow" to it.
Part of the differences is different fuels, but also US drivers tend to abuse vehicles more than European drivers, what leads to US engines being derated for their protection.
Sprinters have DPFs about 4 times bigger than the same engines in sedans.

Those are diesel oils "Bro".
Read and learn :"Bro":
Oilspecifications.org

Reading is comprehensive. Comprehension is beyond some individual's ability.

Yeah didnt mean semis and dump trucks, they have dpf s the way they should be, removable and cleanable. Was more referencing the 3500s/2500s/colorados/rangers/1500s/so on so forth. Plus ya got the vws, bmws, excavators, front loaders, tractors, small industrial transport vehicles.... Many of those have similar sized dpf s and scr systems. I understand the spec sheets show 1 on the ash and many use all of the available however several test below 1 via the various testing sites. Anyhow apples to pears I guess.

BINGO!
DPF is sized according to the expected load on the engine, not where the vehicle came from. When engineers size the DPF they look at miles between Regen cycles and size accordingly. 6.0+ diesel truck is expected to spend much of its life towing heavy loads therefore the DPF is sized accordingly. Even through a sprinter uses the same long block as an E class, It punches a huge hole through the air and can be loaded well over 8000lbs.

There are some important differences between diesel CK-4 oil and gasoline 229.51 oil. Can you spot the differences?

CK-4 diesel oil


229.51 gasoline oil


Keep pouring gasoline oil into your diesel engine and watch your timing chain stretch while the crankcase fills with jello. Somebody's got to put the MB tech's kids through college.

​​​​​👍

Wrong again **** up, Sprinter OM642 uses the same DPF as my E320, Dude.

LMAO how much money do you want to bet?