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      04-05-2016, 05:53 AM   #1
DR-JEKL
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///M Diff oil packaging changes

I had bought some diff fluid in the past that was in a grey bottle with a green cap that had the FM, and was on ECS and noticed it now comes with a clear bottle and red cap.

Is this a new formula or is it a case of BMW switching to shell, and its a shell fluid?

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https://www.ecstuning.com/ES197413/?...FYRjvAodwrYEFg
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      04-05-2016, 09:29 AM   #2
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Same fluid as before, but others have posted this too -- it's just a packaging change. It's Castrol Syntrax LS 75w140 with additional friction modifier, formerly known as Castrol SAF-XJ.

They might move to a Shell/Pennzoil product eventually, but I suspect there is relatively low demand for this fluid on a regular basis. It's not like motor oil that's getting used by the gallon every day in dealerships.
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      04-05-2016, 03:32 PM   #3
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How many miles are on your car/what intervals should you change your diff fluid?
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      04-05-2016, 05:00 PM   #4
DR-JEKL
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Quote:
Originally Posted by dparm View Post
Same fluid as before, but others have posted this too -- it's just a packaging change. It's Castrol Syntrax LS 75w140 with additional friction modifier, formerly known as Castrol SAF-XJ.

They might move to a Shell/Pennzoil product eventually, but I suspect there is relatively low demand for this fluid on a regular basis. It's not like motor oil that's getting used by the gallon every day in dealerships.
Ahh OK, cheers I did a quick search and didnt come up with anything!

FWIW my local BMW dealer in Australia said we still have the grey bottles, as you said not a high demand product in the grand scheme of things
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      04-05-2016, 05:03 PM   #5
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Quote:
Originally Posted by jason.wu View Post
How many miles are on your car/what intervals should you change your diff fluid?
Sorry I cant really answer your question I have a unique scenario...

I retrofitted a ///M diff to my 335i, and my mechanic said because the diff was sitting for quite some time I would be best to flush the new fluid out after 1000 kays, as at times there can be corrosion on the internals as my diff had sat unused for a few years before I installed it (any corrosion will contaminate the fluid and potentially cause damage to the diff)
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