M4 G82 Rear differential Fluid change?

AtLBMW786 · 01-17-2025, 01:33 PM

Hello,

I was wondering what is a good brand to get for diff fluid change
and which oil type?

Thank you

hockeygoalie35 · 01-17-2025, 03:49 PM

I have a G80, but I used 1.5L (need 3) Hypoid Axel Fluid G4. OEM PN: 83222447362

I replaced mine 2 weeks ago, writing up a guide (both front and rear) to post here.

akashyap · 01-18-2025, 08:51 AM

Quote:

Originally Posted by hockeygoalie35

I have a G80, but I used 1.5L (need 3) Hypoid Axel Fluid G4. OEM PN: 83222447362

I replaced mine 2 weeks ago, writing up a guide (both front and rear) to post here.

looking forward to the guide

TopJimmy · 01-18-2025, 09:20 AM

Use OEM so you have the correct friction modifiers for your e-diff.

AtLBMW786 · 01-24-2025, 03:15 PM

so between,

Hypoid Axel Fluid G4. OEM PN: 83222447362

or

Differential Oil SAE 75W-90 By Liqui Moly 1 Liter 07512293972

does anyone know if one is better? if I use LM for regular oil change, should I stick with LM for diff oil change?

emthreepa · 01-24-2025, 04:35 PM

How often are you supposed to change this?

hockeygoalie35 · 01-24-2025, 07:19 PM

Quote:

Originally Posted by AtLBMW786

so between,

Hypoid Axel Fluid G4. OEM PN: 83222447362

or

Differential Oil SAE 75W-90 By Liqui Moly 1 Liter 07512293972

does anyone know if one is better? if I use LM for regular oil change, should I stick with LM for diff oil change?

Definitely go with the OEM.

Quote:

Originally Posted by emthreepa

How often are you supposed to change this?

About every 40K miles.

Quote:

Originally Posted by akashyap

looking forward to the guide

As requested!

01-17-2025, 01:33 PM	#1
AtLBMW786 Private First Class 21 Rep 136 Posts Drives: bmw Join Date: Jun 2017 Location: Charlotte / ATL iTrader: (0)	M4 G82 Rear differential Fluid change? Hello, I was wondering what is a good brand to get for diff fluid change and which oil type? Thank you
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01-17-2025, 03:49 PM	#2
hockeygoalie35 Second Lieutenant 425 Rep 273 Posts Drives: 2022 BMW M3 Comp XDrive Join Date: Aug 2017 Location: CT, USA iTrader: (0)	I have a G80, but I used 1.5L (need 3) Hypoid Axel Fluid G4. OEM PN: 83222447362 I replaced mine 2 weeks ago, writing up a guide (both front and rear) to post here. Last edited by hockeygoalie35; 01-17-2025 at 04:57 PM..
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01-18-2025, 09:20 AM	#4
TopJimmy Major General 6424 Rep 5,661 Posts Drives: 2023 M3 Comp xDrive Join Date: Jul 2019 Location: Chester County, PA iTrader: (5)	Use OEM so you have the correct friction modifiers for your e-diff. Attached Images __________________ '18 F80 Base 6MT \| '19 F82 Exec DCT \| '18 F82 Comp Exec DCT \| '23 G80cx
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01-24-2025, 03:15 PM	#5
AtLBMW786 Private First Class 21 Rep 136 Posts Drives: bmw Join Date: Jun 2017 Location: Charlotte / ATL iTrader: (0)	so between, Hypoid Axel Fluid G4. OEM PN: 83222447362 or Differential Oil SAE 75W-90 By Liqui Moly 1 Liter 07512293972 does anyone know if one is better? if I use LM for regular oil change, should I stick with LM for diff oil change?
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01-24-2025, 04:35 PM	#6
emthreepa Second Lieutenant 244 Rep 251 Posts Drives: Mint Green G82 M4 Competition Join Date: Dec 2022 Location: Pittsburgh, PA iTrader: (0)	How often are you supposed to change this?
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