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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
If you like popcorn, you can also just put 3 sticks of butter and a cup of popcorn kernels in the oil fill location. Run the car for 5min for a delicious (and healthy) snack.
welcome to the internet where a search is only as far as your fingers will take you.
everyone will have their differing options, but my preference is 5w-40 LiquiMoly MolyGen or 5w-40 Motul XCess 8100 with 2 cans of LiquiMoly MoS2. stay away from that generic Mobil 1 stuff. it'll work but there is obviously better out there.
welcome to the internet where a search is only as far as your fingers will take you.
everyone will have their differing options, but my preference is 5w-40 LiquiMoly MolyGen or 5w-40 Motul XCess 8100 with 2 cans of LiquiMoly MoS2. stay away from that generic Mobil 1 stuff. it'll work but there is obviously better out there.
I assume the 5W-40 Liquimoly MolyGen New Generation MB229.5 compatible is the updated version of the standard LiquiMoly in traditional blue and white bottles?
Last edited by DRBC43AMG; 03-02-2021 at 06:26 AM.
Reason: Modified content
I assume the 5W-40 Liquimoly MolyGen New Generation MB229.5 compatible is the updated version of the standard LiquiMoly in traditional blue and white bottles?
MolyGen does not meet the standards that are required by Mercedes and the M156 engine due to excess amounts of antifriction additives.
LiquiMoly bluebottles are a standard synthetic oil without antifriction additives beyond required certifications. you'll need to add MoS2 or Ceratec to this.
MolyGen does not meet the standards that are required by Mercedes and the M156 engine due to excess amounts of antifriction additives.
LiquiMoly bluebottles are a standard synthetic oil without antifriction additives beyond required certifications. you'll need to add MoS2 or Ceratec to this.
Only oils conforming to 229.5 (not 229.51) are "allowed". Attached is the current list of approved oils.
MolyGen does not meet the standards that are required by Mercedes and the M156 engine due to excess amounts of antifriction additives.
LiquiMoly bluebottles are a standard synthetic oil without antifriction additives beyond required certifications. you'll need to add MoS2 or Ceratec to this.
Well that is understandable even if the bottle says it meets MB 229.5, but why then is it recommended to add MoS2 or Ceratec for example?
i'm not an expert on each standard, but it is my understanding if you go beyond a given range acceptable for anti friction additives, you'll be out of spec. MoS2 for every engine I own and for anyone who I've recommended the additive to has only shared the same exact thoughts on the product as myself. the engine will run smoother and feel as though more power is available. Ceratec not so much as it's a different product for a different purpose which is why Ceratec should be cycled in every 2 oil changes or every 20k miles. for me Ceratec has less of a positive impact that MoS2, but i'm using Ceratec to fill microholes with its ceramic additive to assist protection through oil film height.
i only recommend things that i have tried myself if they work.
11’ C63 AMG; D2 Audi A8; 15’ Golf TDi; 97’ F350PSD; B6 Audi S4; D1 Audi V8; A2 VW GTi
Originally Posted by go team
Late to the party but this is the best I’ve got.
Ive got to step up my meme game.
I decided to try the molygen for the last oil change and I’ll not be going back.
My idle quality is improved (I believe because my lifters are staying pumped up) my starts are quieter, my hot starts aren’t as tappety as they used to be. That’s all I needed to hear.
My suspicion about the MB spec has got a lot to do with the oil viscosity as they are trying to use an oil with as little parasitic drag as possible.
I am not so sure about the additives exceeding spec not being ok though. API specs are always written as “meets or exceeds” insert spec here. It is generally accepted to exceed the spec as being an acceptable practice.
While special, the M156 is certainly not unique in terms of its oil requirements. It still has Babbitt coated bearings, it has aluminum cam journals, and many other “features” that all engines have had for decades. I think MB is mostly trying to be difficult.
So it would seem the Molygen 5w-40 seems to be making things much quieter. Seeing the first reviews and positive comments, I would go for this one when changing my engine oil. Probably we can also do away with the additional additives.
However after searching the LiquiMoly internet page for Switzerland where I live, they don't stock Molygen. They only have the purple/blue stuff. Need to search around.
Last edited by DRBC43AMG; 03-04-2021 at 05:13 AM.
Reason: Completed post
I am not so sure about the additives exceeding spec not being ok though. API specs are always written as “meets or exceeds” insert spec here. It is generally accepted to exceed the spec as being an acceptable practice.
While special, the M156 is certainly not unique in terms of its oil requirements. It still has Babbitt coated bearings, it has aluminum cam journals, and many other “features” that all engines have had for decades. I think MB is mostly trying to be difficult.
yeah who knows, probably to do with long service intervals and their makeup up until that point of being changed, fuel economy, protection, and maybe emissions.
Originally Posted by DRBC43AMG
So it would seem the Molygen 5w-40 seems to be making things much quieter. Seeing the first reviews and positive comments, I would go for this one when changing my engine oil. Probably we can also do away with the additional additives.
However after searching the LiquiMoly internet page for Switzerland where I live, they don't stock Molygen. They only have the purple/blue stuff. Need to search around.
According to some sources on the internet the purple and blue bottle are the same. This is their standard fully synthetic oil. I haven't used this myself, but as with Motul 8100 I'd also add MoS2 to this if I ran it. With MolyGen, the cost is higher, but as you mentioned I'm not needing to buy 2 bottles of additive which do add to the cost. Much easier to have an all in one solution.
02-28-2021, 08:12 PM
I thought you put in water...
