Analysis paralysis: Differential oil front/back

oraclesd · 08-12-2023, 04:12 PM

Have read several threads and also called Pelican Parts support and they’re calling for 75-90w for front and back, others call for 75-85w. Mine is a 2016, anyone can confirm which is the appropriate one? Is the oil for the front diff same as the back? Thanks

Opie55 · 08-13-2023, 01:50 PM

If you go to a site like ECS tuning and look for those fluids, you will get a different one for front and rear. So BMW's actual recommended fluids are not the same. So that's what I bought. For a few bucks extra I was not going to go through the brain damage you are going through right now.

BIG_KID · 08-14-2023, 08:47 PM

Redline 50104 in both front/rear on mine with no issues…

okayr · 08-15-2023, 06:53 PM

They are different front and back but FWIW- BMW indie shop filled both with liquimoly 75w-90 40k/3 years ago, no issues!

bmwPower99 · 08-16-2023, 08:56 AM

Motul 300 75w/90 fully synthetic front and back 4 years 40k miles ago with no issues. From Opie oils in the UK.

oraclesd · 08-17-2023, 11:07 PM

Got it, thanks all for the feedback, I think I’ll go with 75-90 front/back, it’s what I used in my E83 and it worked out alright.

08-12-2023, 04:12 PM	#1
oraclesd New Member 0 Rep 6 Posts Drives: 2016 X3 2.8xdrive Join Date: Jun 2014 Location: San Diego CA iTrader: (0)	Analysis paralysis: Differential oil front/back Have read several threads and also called Pelican Parts support and they’re calling for 75-90w for front and back, others call for 75-85w. Mine is a 2016, anyone can confirm which is the appropriate one? Is the oil for the front diff same as the back? Thanks Last edited by oraclesd; 08-12-2023 at 09:50 PM..
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08-13-2023, 01:50 PM	#2
Opie55 Colonel 1195 Rep 2,908 Posts Drives: '15 650i Convertible Join Date: Apr 2018 Location: US iTrader: (0)	If you go to a site like ECS tuning and look for those fluids, you will get a different one for front and rear. So BMW's actual recommended fluids are not the same. So that's what I bought. For a few bucks extra I was not going to go through the brain damage you are going through right now.
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08-14-2023, 08:47 PM	#3
BIG_KID Second Lieutenant 68 Rep 290 Posts Drives: 2011 X3 28i Join Date: Dec 2017 Location: Northern indiana iTrader: (0)	Redline 50104 in both front/rear on mine with no issues…
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08-15-2023, 06:53 PM	#4
okayr Private First Class 32 Rep 101 Posts Drives: 2014 BMW X3 xDrive28i Join Date: Feb 2021 Location: California iTrader: (0)	They are different front and back but FWIW- BMW indie shop filled both with liquimoly 75w-90 40k/3 years ago, no issues!
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08-16-2023, 08:56 AM	#5
bmwPower99 Private First Class 19 Rep 148 Posts Drives: bmw f25 X3 35d Join Date: Jan 2021 Location: uk iTrader: (0)	Motul 300 75w/90 fully synthetic front and back 4 years 40k miles ago with no issues. From Opie oils in the UK.
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08-17-2023, 11:07 PM	#6
oraclesd New Member 0 Rep 6 Posts Drives: 2016 X3 2.8xdrive Join Date: Jun 2014 Location: San Diego CA iTrader: (0)	Got it, thanks all for the feedback, I think I’ll go with 75-90 front/back, it’s what I used in my E83 and it worked out alright.
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