E90 Rear Differential Oil

[Monfreeze Archangel]

I just changed my rear diff oil at one of the sponsor workshops in BMW SG. The receipt did not write the oil grade but our rear diff oil must be for LSD one then is suitable. From my very limited knowledge, our cars does come with LSD but a super basic 1 way type.

Bro Delrosa81,

Did you change your rear Diff Oil for some specific reason? Sound/noise; or just based on the fact that it due for change. As some say that it should be replace once ur ride hit the 100K mileage. care to share what was the cost like

Thanks.

[Jarren]

I didn't even know our E90 have a basic LSD & it require to change Diff oil

[delrosa81]

Bro Delrosa81,

Did you change your rear Diff Oil for some specific reason? Sound/noise; or just based on the fact that it due for change. As some say that it should be replace once ur ride hit the 100K mileage. care to share what was the cost like

Thanks.

I changed cos I hit 100K Km mileage, no noise or anything. I change cos I don believe in lifetime fill oil. Its 40 bucks for the oil and I think 20 bucks for labour.

I didn't even know our E90 have a basic LSD & it require to change Diff oil

I didnt know as well, I thought it was just a rear diff for RWD thats all. Not 100% sure anot also.

[detach8]

Back from MA. They said I'll need to wait for a while cos they need to verify with BMW Asia. I think they're replacing my entire rear axle assembly.

[detach8]

Quick update. Went to MA, got my rear axle (according to SA?) replaced, and he said they used an oil specially to reduce wear and prolong lifespan... I'm guessing they used a thicker viscosity oil. But for sure the whine I had before is completely gone. I must give them 5 stars for their service though - they got the parts within 1 week and replaced my rear diff in just one day (less than 8 hours).

[wt_know]

for MA ...

finally there is an alternative to BMW AD customers from suffering "that's normal"

Quick update. Went to MA, got my rear axle (according to SA?) replaced, and he said they used an oil specially to reduce wear and prolong lifespan... I'm guessing they used a thicker viscosity oil. But for sure the whine I had before is completely gone. I must give them 5 stars for their service though - they got the parts within 1 week and replaced my rear diff in just one day (less than 8 hours).

[Dngrdad]

Quick update. Went to MA, got my rear axle (according to SA?) replaced, and he said they used an oil specially to reduce wear and prolong lifespan... I'm guessing they used a thicker viscosity oil. But for sure the whine I had before is completely gone. I must give them 5 stars for their service though - they got the parts within 1 week and replaced my rear diff in just one day (less than 8 hours).

Got my differential replaced by MA this week as well. Checked a few workshops, almost every workshop, quoted 1 to 2 weeks for part. Guess I was lucky, MA got mine the next day. All the terrible noise gone now .. a happy driver now. Agreed, good service from MA, much better than pml. Thanks Sherman for the good first encounter.

[Monfreeze Archangel]

Got my differential replaced by MA this week as well. Checked a few workshops, almost every workshop, quoted 1 to 2 weeks for part. Guess I was lucky, MA got mine the next day. All the terrible noise gone now .. a happy driver now. Agreed, good service from MA, much better than pml. Thanks Sherman for the good first encounter.

Bro Dngrdad,

Mind sharing the Damage?

Thanks

[Monfreeze Archangel]

Hey Derrick,

Not sure what brand you're planning on using, but based on what a lot of the BMW tuners use, I would go with Redline Oil. See here,
Red Line Synthetic Oil - BMW: What Red Line Products Do I Need?

Depends on whether you have an LSD in your setup or not. If you don't, 75W90. Don't forget, when you're changing it, make sure that the fluid doesn't get on your clothes. That stuff is stinky as shit, and no matter what you do, the smell just doesn't go away.

I called these guys,
Kai Guan Company | NTN Bearings | Red Line Oil
No.3 Upper Aljunied Link #01-03
Block B, Joo Seng Warehouse
Singapore 367902
Tel: +65 6382 3003

They have 1 quart (946ml) for $21 or so. Your differential probably will need just less than 2 bottles. Be sure to also change the crush washers on the fill and drain plugs. They are one time use only.

Martin.

Hi Bros,

anyone changed the rear diff and used the REDLINE series? i am planning to try the 75W140 from Redline as i am having the infamous sound from my rear diff.
Appreciate the feedback or any inputs on this Redline series.
Also read some write ups on the Swepco 201...widely used for Porsche and wanted to check if anyone has come across this or know if this is available here in s'pore. seems that you have to order it from Paragon Products, Inc; 5602 Old Brownsville Rd
Corpus Christi, TX 78417 or order online from Pelican Parts US.

Pelican Parts - Product Information: SWE-201-80W90


Cheers.

[detach8]

Actually bro, have you considered swapping a used differential from a scrapyard? Then trade your diff for the used one see if it helps.