Derrrick Yap
Well-Known Member
Hi Guys, can anyone advise which grade to use to replace the rear differential oil of E90.
75w90 or 75w140?
75w90 or 75w140?
E90 Rear Differential Oil
- Thread starter Derrrick Yap
- Start date
martmode8850
Well-Known Member
Re: E90 Rear Differential Oil
am doing inspection I tomorrow, will check it out at the service counter...
am doing inspection I tomorrow, will check it out at the service counter...
inyafase
Member
Re: E90 Rear Differential Oil
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.
Derrrick Yap;656072 said:
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.
Monfreeze Archangel
Well-Known Member
Re: E90 Rear Differential Oil
Bro,
I have this stupid sound, the Whistling or Whining sound on my E90 320i Pre FL....and beleive that the Rear Diffrential/Final Drive needs to be changed.
Some claim that changing the Rear Diff oil will help mask the sound, any comments on this?
Thanks.
Bro,
I have this stupid sound, the Whistling or Whining sound on my E90 320i Pre FL....and beleive that the Rear Diffrential/Final Drive needs to be changed.
Some claim that changing the Rear Diff oil will help mask the sound, any comments on this?
Thanks.
Monfreeze Archangel
Well-Known Member
Re: E90 Rear Differential Oil
Agree with you there....IMHO 100K would be a good milestone....as it is considered a Major Milestone service.
Cheers
Bro Zorro.zorro;667645 said:
Agree with you there....IMHO 100K would be a good milestone....as it is considered a Major Milestone service.
Cheers
inyafase
Member
Re: E90 Rear Differential Oil
I completely agree. "Lifetime Oil" is a load of marketing bullshit. I had a friend with an E46. On his transmission, it had a sticker that specifically said, "Lifetime transmission fluid, do not change." At the time we drained his fluid, he had nearly 160K on his odometer. And wouldn't you know, the fluid came out black. Mind you, his car had never been tracked. BLACK i'm telling you.
Anyway, we promptly filled up his transmission with Redline Oil ATF. Shifting was nearly a night and day difference. Holy cow.
All this to say, "Lifetime Oil" is not really "lifetime." Personally, I would swap the rear diff fluid every 150K or so. And yes, unless you're running an LSD, use the 75W90.
I completely agree. "Lifetime Oil" is a load of marketing bullshit. I had a friend with an E46. On his transmission, it had a sticker that specifically said, "Lifetime transmission fluid, do not change." At the time we drained his fluid, he had nearly 160K on his odometer. And wouldn't you know, the fluid came out black. Mind you, his car had never been tracked. BLACK i'm telling you.
Anyway, we promptly filled up his transmission with Redline Oil ATF. Shifting was nearly a night and day difference. Holy cow.
All this to say, "Lifetime Oil" is not really "lifetime." Personally, I would swap the rear diff fluid every 150K or so. And yes, unless you're running an LSD, use the 75W90.
detach8
Well-Known Member
Re: E90 Rear Differential Oil
hey bro when u say this whining sound, how does it sound like?
mine sounds like woooooooooo especially speeds around 20-50kph and even more obvious when slowing down
maybe because i have brake energy regeneration (new 2011 E90 LCI). but i'm pretty sure my old E90 (pre-FL) did NOT have this sound.
Monfreeze Archangel;667638 said:
hey bro when u say this whining sound, how does it sound like?
mine sounds like woooooooooo especially speeds around 20-50kph and even more obvious when slowing down
maybe because i have brake energy regeneration (new 2011 E90 LCI). but i'm pretty sure my old E90 (pre-FL) did NOT have this sound.
Monfreeze Archangel
Well-Known Member
Re: E90 Rear Differential Oil
That is about right, stupid sound especially when you have the windows done...very obvious on low speed...mine starts around 40km/h and gets louder till about 100km/h. Was adviced to get the rear Diff/Final drive unit changed, but no Guarantee that the sound will not come back. Trial and error kinda solution. To me this Seems it is a common problem with the E90s (majority with the Pre FL/non LCI). Many of the treads here also indicate the same.
http://www.bmw-sg.com/forums/help-whats-happening-my-bmw/10990-e90-finaldrive.html
http://www.bmw-sg.com/forums/help-w...-323-whining-sound-between-70km-h-85km-h.html
http://www.bmw-sg.com/forums/help-whats-happening-my-bmw/5702-help-whistling-noise-e90.html
just wanted to find an option, whether if changing the rear Diff oil had helped anyone on this matter.
Cheers.
Yes Bro,detach8;668285 said:
That is about right, stupid sound especially when you have the windows done...very obvious on low speed...mine starts around 40km/h and gets louder till about 100km/h. Was adviced to get the rear Diff/Final drive unit changed, but no Guarantee that the sound will not come back. Trial and error kinda solution. To me this Seems it is a common problem with the E90s (majority with the Pre FL/non LCI). Many of the treads here also indicate the same.
http://www.bmw-sg.com/forums/help-whats-happening-my-bmw/10990-e90-finaldrive.html
http://www.bmw-sg.com/forums/help-w...-323-whining-sound-between-70km-h-85km-h.html
http://www.bmw-sg.com/forums/help-whats-happening-my-bmw/5702-help-whistling-noise-e90.html
just wanted to find an option, whether if changing the rear Diff oil had helped anyone on this matter.
Cheers.
Monfreeze Archangel
Well-Known Member
Re: E90 Rear Differential Oil
yes Bro,
Seems like a good idea.
I am in Pasir Ris....currently travelling and should be back this weekend. lets see if we can catch up this weekend.
Cheers.
yes Bro,
Seems like a good idea.
I am in Pasir Ris....currently travelling and should be back this weekend. lets see if we can catch up this weekend.
Cheers.
wt_know
Well-Known Member
Re: E90 Rear Differential Oil
do you mean changing ATF oil at 20k/30k milleage? it's abit overkill la.
i reckon 40k (at least) or 50k (just nice)
do you mean changing ATF oil at 20k/30k milleage? it's abit overkill la.
i reckon 40k (at least) or 50k (just nice)
tomace;671198 said:Sorry to OT ~~
May I know e mileage used before u all change the oil?
Im planning to replace it @ every 30k usage & gear oil @ every 20k usage.. (akan datang)
Cheers ~~
Last edited by a moderator:
inyafase
Member
Re: E90 Rear Differential Oil
You could try changing the differential oil. Usually yours would take a 75W90. But you could experiment with a 75W140.
Alternatively, if you're keen on doing something to your diff, try one of these out. Expensive, but quite worth it if you're into that sort of thing,
Quaife - Limited Slip Deferential, BMW E90 E92 E93 335 335i
You could try changing the differential oil. Usually yours would take a 75W90. But you could experiment with a 75W140.
Alternatively, if you're keen on doing something to your diff, try one of these out. Expensive, but quite worth it if you're into that sort of thing,
Quaife - Limited Slip Deferential, BMW E90 E92 E93 335 335i
delrosa81
Well-Known Member
Re: E90 Rear Differential Oil
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.
Derrrick Yap;656072 said:
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.
