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MB229.5 and MB229.51 #5191538 08/19/19 06:35 PM
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Tikka Offline OP
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Hi
As anyone who has read my posts will have realised, my knowledge of all things on BITOG is in its infancy, but I am learning.

Could anyone tell me the difference between mb229.5 and 229.51? Is the latter just an evolution of the former? I am thinking 229.51 evolved to 229.52.

Many thanks.

Tikka.

Re: MB229.5 and MB229.51 [Re: Tikka] #5191541 08/19/19 06:41 PM
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Wolf359 Offline
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The 229.5 was basically for gas MB cars. MB 229.51 was for diesels and 229.52 was updated for diesel cars. If you have a gas car, you should use 229.5 although you can use 229.51 or 229.52.

Re: MB229.5 and MB229.51 [Re: Tikka] #5191543 08/19/19 06:42 PM
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Pelican Offline
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Originally Posted by Tikka
Hi
As anyone who has read my posts will have realised, my knowledge of all things on BITOG is in its infancy, but I am learning.
Could anyone tell me the difference between mb229.5 and 229.51? Is the latter just an evolution of the former? I am thinking 229.51 evolved to 229.52.
Many thanks. Tikka.


Yes that's the evolution of MB oils. They are backwards compatible and forward progressing. wink

Re: MB229.5 and MB229.51 [Re: Wolf359] #5191550 08/19/19 06:47 PM
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UncleDave Offline
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Originally Posted by Wolf359
The 229.5 was basically for gas MB cars. MB 229.51 was for diesels and 229.52 was updated for diesel cars. If you have a gas car, you should use 229.5 although you can use 229.51 or 229.52.


Yup- - You can - but once you see the availability and price of 229.51 and .52 you will likely recoil in horror.

UD


Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C
Re: MB229.5 and MB229.51 [Re: Tikka] #5191569 08/19/19 07:15 PM
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Snagglefoot Online Content
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Here’s one that is both 229.51 and 229.52

59EC0AB4-0EC8-46BC-8315-9EE57F95B233.jpeg053619EB-A88A-4DA7-B2CF-7B6545D798F3.jpeg

If you want the job done right......do it yourself.
Re: MB229.5 and MB229.51 [Re: Pelican] #5191632 08/19/19 08:41 PM
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Quattro Pete Offline
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Originally Posted by Pelican
Originally Posted by Tikka
Hi
As anyone who has read my posts will have realised, my knowledge of all things on BITOG is in its infancy, but I am learning.
Could anyone tell me the difference between mb229.5 and 229.51? Is the latter just an evolution of the former? I am thinking 229.51 evolved to 229.52.
Many thanks. Tikka.


Yes that's the evolution of MB oils. They are backwards compatible and forward progressing. wink

They are not backwards compatible.

If your diesel engine calls for 229.51 oil, then you should not be using 229.5 oil in it.


2002 530i   2015 Q5 3.0T   2018 Charger SRT
Re: MB229.5 and MB229.51 [Re: Tikka] #5191639 08/19/19 08:50 PM
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d00df00d Online Content
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From a quick re-skim of the Afton Chemical Specification Handbook -- hopefully someone else will chime in if I've missed anything:

229.51 is 229.5 with lower SAPS limits and a few related tweaks.

229.52 is 229.51 with stricter requirements for oxidation, viscosity retention, cold viscometrics, and fuel economy.

Also, 229.5 references ACEA A3 standards for elastomer compatibility, whereas 229.51 and 229.52 reference ACEA C3.

All other requirements are the same for all three specs, though that doesn't mean all oils meeting all of those specs will perform exactly the same; different oils might beat the requirements by different margins.


2008 BMW M3 Sedan 6MT
Re: MB229.5 and MB229.51 [Re: Quattro Pete] #5191672 08/19/19 09:41 PM
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Jimmy_Russells Offline
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Originally Posted by Quattro Pete
Originally Posted by Pelican
Originally Posted by Tikka
Hi
As anyone who has read my posts will have realised, my knowledge of all things on BITOG is in its infancy, but I am learning.
Could anyone tell me the difference between mb229.5 and 229.51? Is the latter just an evolution of the former? I am thinking 229.51 evolved to 229.52.
Many thanks. Tikka.


Yes that's the evolution of MB oils. They are backwards compatible and forward progressing. wink

They are not backwards compatible.

If your diesel engine calls for 229.51 oil, then you should not be using 229.5 oil in it.



That would be asking the 229.5 to be forwards compatible, not the 229.51 to be backwards compatible.

Re: MB229.5 and MB229.51 [Re: d00df00d] #5191692 08/19/19 10:16 PM
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Rollins Offline
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Originally Posted by d00df00d

Also, 229.5 references ACEA A3 standards for elastomer compatibility, whereas 229.51 and 229.52 reference ACEA C3.


Acc. to ACEA oil seq. the limits for elastomer compatibility for categories a/b4 and c3 are identical.

This one is interesting,
Quote
SRV (Schwing Reib Verschleiß) Test, PC Ring/Liner (MBN 10474, SRV Version 4 to be applied)

229.5 has a higher load carrying capacity limit ..and only 229.5 has min.demand for aged oil in this respect (page 196, v.2017.1)..while the others are "rate and report".


Last edited by Rollins; 08/19/19 10:20 PM.
Re: MB229.5 and MB229.51 [Re: Tikka] #5192072 08/20/19 01:38 PM
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To the OP... Read trough that pdf and you will know everything...

https://www.aftonchemical.com/Insights-and-Resources/Documents/Specification-Handbook

Re: MB229.5 and MB229.51 [Re: Tikka] #5192247 08/20/19 04:48 PM
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MB 229.5 is full SAPS and based on ACEA A3/B4 and is for petrol (gas) engines.

MB 229.51 and 229.52 is mid-SAPS (or maybe low-SAPS) and is for Diesel engines with DPF exhaust filters, but it can be used in petrol engines running low sulphur fuel.


---------------------------------------------------------------------------------
Castrol Edge 10W30 A5/B5 + Wesfil-Cooper Z154
Re: MB229.5 and MB229.51 [Re: Tikka] #5192267 08/20/19 05:14 PM
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Quote
MB 229.3
For petrol and diesel engines. Minimum quality required ACEA A3 / B3 / B4 and MB 229.1. It can only certify 0/ 5 W-x oils.
MB 229.31
Multigrade, low SAPS engine oil, advised for both diesel and petrol engines of Mercedes Benz, Smart and Chrysler. Only low viscosity engine oils which can realize a 1,0% saving on used fuel in the M111 Fuel economy test (CEC L-54-T-96) can get this approval. In this test the fuel savings are compared to the performance of the Reference oil RL 191 (SAE 15W-40).
MB 229.5
MB sheet for energy conserving oils for certain car and van engines. Approved oils must meet ACEA A3, B3 and B4 specification and some additional demands by Daimler Chrysler AG. Oil must be on the approval list.
MB 229.51
Low SAPS Long Life engine oil for diesel engines with particle filter meeting emission EU-4 -> standards.
MB 229.52
Oils meeting this specifications must have lower ash content, at least 1% better fuel economy compared to the requirements of MB 229.31 and MB 229.51 and better oxidation stability for biofuel compatibility. Can also be used where an MB 229.31 or an MB 229.51 oil is required. Just like MB 229.5 and MB 229.51 this spec requires a long life oil.


From:
https://www.oilspecifications.org/mercedes_mb.php


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Castrol Edge 10W30 A5/B5 + Wesfil-Cooper Z154
Re: MB229.5 and MB229.51 [Re: Snagglefoot] #5192624 08/21/19 05:07 AM
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21Rouge Offline
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Originally Posted by Snagglefoot
Here’s one that is both 229.51 and 229.52




I think you might find that any and all 504/507 certified oils have most/all MB certifications?

Re: MB229.5 and MB229.51 [Re: 21Rouge] #5193840 08/22/19 12:19 PM
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Tikka Offline OP
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Originally Posted by 21Rouge
Originally Posted by Snagglefoot
Here’s one that is both 229.51 and 229.52




I think you might find that any and all 504/507 certified oils have most/all MB certifications?


Hi
Yes I had noticed that oils do seem interchangeable. MB229.51, Dexos2 and LL04 seem to be present together a lot;

Re: MB229.5 and MB229.51 [Re: Tikka] #5193848 08/22/19 12:27 PM
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Tikka Offline OP
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Hi Gents

Thank you all for your patience and taking the time to help me out. It is sincerely appreciated.

,5 = Petrol and .51 = Diesel/Petrol. My Wife's Vauxhall (GM) takes Dexos 2 which seems to be all Vauxhall use now regardless of petrol or diesel engine.

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