OIL Bluetec - what and why
Based on this list and what is available I narrowed down to following oils:
Castrol EDGE 5W-40 - Sold at VW dealers
Pento High Performance II 5W-40
PENTOSYNTH HC
Valvoline SYNPower MST 5W-40 Full Synthetic
Has anyone used any of those oils? Any thoughts?
Thanks
I disagree with the modern folklore claiming one will experience accelerated wear using a 30 weight oil vs 40 weight. I seriously doubt more than one or two W164's will ever wear out their engines before the doors and wheels fall off.
I disagree with the modern folklore claiming one will experience accelerated wear using a 30 weight oil vs 40 weight. I seriously doubt more than one or two W164's will ever wear out their engines before the doors and wheels fall off.

Depending on what climate the vehicle is operating in, it could actually make the engine last longer.
Not enough to make a difference, probably but in theory...
My guess would be that the transmission on these vehicles will shell out before the engine ever thinks about giving up. Most will be scrapped out at that point.
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Have said before sometime in the late 1980's I read an SAE paper believe to have been written by Ford engineers which turned the understanding of mechanics of lubrication on its ear. Previously unknown mechanisms were at work in the pressurized plain bearings. The authors predicted the coming 20 weight oil, and maybe even thinner.
Mercedes-Benz listed 5W-40 as the first choice for my W164 and I will continue until my current supply is exhausted. Then without a worry will start using 5W-30.
My dirtbike is another story. All caged ball and roller bearings. 50 weight is specified. I'd love to use 15W-40 "diesel" oil but its mechanically louder when I do.
The Best of Mercedes & AMG
I just bought a Mercedes ML 350 Bluetec (Diesel) 2012.
I want to ship it in my country of origin and was thinking to take some Engine Oil with me from US.
Can anybody recommend me what Brand and type of oil to buy? I mean I see they use 15-30w, 15-40w, 0-40w, etc...and also I don't know the quantity of oil it takes.
I had before a w164 ML350 2007 and I used 10-40w and it usually takes 8 Liters, but never had before a ML Diesel.
Another thing is that as far as I know Mercedes recommends Mobil 1 and I'm ok with that, but maybe anyone of you guys experienced as well other brands and you're happy, so maybe I could save some money, because I'm considering to take some quantity with me and ship it with the car since here overall the oil is cheaper.
Anyways if it is Mobil 1 or other brand I would like to know which Serial Type is more appropriate for it.
Thanks!
Last edited by Joniz84; Jan 22, 2020 at 09:53 PM.
Anyways if it is Mobil 1 or other brand I would like to know which Serial Type is more appropriate for it.
Thanks![/QUOTE]
VERY specifically (pay attention)
The motor oil for the diesel MUST have Mercedes approval MB229.52 printed on the bottle. Must be 52 not just 229.5 No other numbers on the bottle are of any significance.
You may find some with 229.51, which is ok, but this is essentially an obsolete specification and pretty hard to find. By definition ALL 229.52 oils are xW-30.
Last edited by lkchris; Jan 22, 2020 at 10:54 PM.
API CK-4 and FA-4 have been introduced for 2017 model American engines.[17]API CK-4 is backward compatible that means API CK-4 oils are assumed to provide superior performance to oils made to previous categories and could be used without problems in all previous model engines (but see Ford below).
API FA-4 oils are different (that is why API decided to start a new group in addition to API Sx and API Cx). API FA-4 oils are formulated for enhanced fuel economy (presented as reduced greenhouse gas emission). To achieve that, they are SAE xW-30 oils blended to a high temperature high shear viscosity from 2.9 cP to 3.2 cP. They are not suitable for all engines thus their use depends on the decision of each engine manufacturer. They cannot be used with diesel fuel containing more than 15 ppm sulfur.
I just bought a Mercedes ML 350 Bluetec (Diesel) 2012.
I want to ship it in my country of origin and was thinking to take some Engine Oil with me from US.
Can anybody recommend me what Brand and type of oil to buy? I mean I see they use 15-30w, 15-40w, 0-40w, etc...and also I don't know the quantity of oil it takes.
I had before a w164 ML350 2007 and I used 10-40w and it usually takes 8 Liters, but never had before a ML Diesel.
Another thing is that as far as I know Mercedes recommends Mobil 1 and I'm ok with that, but maybe anyone of you guys experienced as well other brands and you're happy, so maybe I could save some money, because I'm considering to take some quantity with me and ship it with the car since here overall the oil is cheaper.
Anyways if it is Mobil 1 or other brand I would like to know which Serial Type is more appropriate for it.
Thanks!
Meets the Mercedes specs.







