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Difference between specs #5425504 05/10/20 11:48 AM
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Eurotourist Offline OP
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Does someone know the difference between:

MB 228.51 and MB 228.31?

Can I use a 228.31 in an engine who is prescribed for 228.51?

Re: Difference between specs [Re: Eurotourist] #5425517 05/10/20 12:11 PM
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JohnG Offline
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Re: Difference between specs [Re: Eurotourist] #5425576 05/10/20 01:52 PM
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Quattro Pete Offline
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Originally Posted by Eurotourist
Can I use a 228.31 in an engine who is prescribed for 228.51?

I wouldn't. These two specs appear to be quite different.

https://online.lubrizol.com/relperftool/hd.html



2002 530i   2015 Q5 3.0T   2018 Charger SRT
Re: Difference between specs [Re: Quattro Pete] #5425612 05/10/20 02:54 PM
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Eurotourist Offline OP
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It looks like 228.51 is better than 228.31 in general... More wear protection, piston deposits.

Re: Difference between specs [Re: Eurotourist] #5425765 05/10/20 06:49 PM
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Pelican Offline
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Originally Posted by Eurotourist
Does someone know the difference between:

MB 228.51 and MB 228.31? Can I use a 228.31 in an engine who is prescribed for 228.51?


Generally MB fluids are backwards compatible, but not the other way around. smile2

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