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Transfer case and differential oils
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artiom
 


Member Since: 14 Jul 2019
Location: Gloucestershire
Posts: 26

2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4
Transfer case and differential oils

Update 1: updated the post with additional info as per comments below.

Hi all,

I've been looking at replacing the oils in my D4 and could not find one post with all required info in one place. Some oils can be found only via dealers and some were renamed over time. Here is what I have found so far:

Front Diff
Oil: Castrol Syntrax Long Life 75W/90 GL5
Capacity: 0.61L
Plugs torque:
Drain: 54Nm
Fill: 34Nm

Rear Diff (Open diff only!)
Oil: Castrol Syntrax Long Life 75W/90 GL5
Capacity: 1.1L
Plugs torque:
Drain-hex: 54Nm
Drain-square: 28Nm (this plug may be found in older diffs).
Fill: 34Nm

Alternative diff oil (open diff only):
- https://www.advancedfactors.co.uk/adv902-3...5757-p.asp

Transfer Case
Oil: Shell TF 0753 GL4 -OR- Ravenol TF-0870
Capacity: 1.5L
Plugs torque: 22Nm

Alternative Transfer Box oil:
- https://www.advancedfactors.co.uk/adv903-i...5794-p.asp

Additional info:
- Always open the "Fill" plug first - if it is seized and the "drain" was opened - it will not be possible to drive the car without the oil in diff/TF.

A few questions:
1. Can someone please confirm whether the information above is correct? Especially about the TF oil "Ravenol" - there is a post on the forum metioning it.
2. Are there any washers required to be replaced? Someone mentioned copper washers, but I couldn't find their specs.
Response: usually the copper washers should be ok and rarely need changing.

Thanks for reading! 

Last edited by artiom on 29th May 2020 11:34 am. Edited 1 time in total 
Post #214987128th May 2020 12:06 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 5063

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Yes Castrol Syntrax 75/90 for the diffs so long as you don't have a locking rear diff. Other brands are:

Front & rear diffs (except for locking rear diff)
https://www.advancedfactors.co.uk/adv902-3...5757-p.asp

Transfer Box
https://www.advancedfactors.co.uk/adv903-i...5794-p.asp

The washers should be fine and rarely need changing, undo the filler plug before you drain just in case the filler is siezed!! yµ (idµ - eAµ) ψ=mψ

  
Post #214987828th May 2020 12:47 pm
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artiom
 


Member Since: 14 Jul 2019
Location: Gloucestershire
Posts: 26

2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

Thank you for the response, I've updated my initial post with this additional information.  
Post #215007029th May 2020 11:34 am
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miniman8
 


Member Since: 22 May 2017
Location: Wantage
Posts: 97

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Hi all

Anybody used comma differential oil for an oil change, it looks reasonable priced & seems to be the right spec for disco.

It’s SX75W-90 GL5 semi synthetic.

Tom  
Post #217397715th Sep 2020 4:15 pm
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PAIO
 


Member Since: 12 Apr 2016
Location: BELLUNO
Posts: 115

Italy 2012 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4
Hi

Please how many km these oils should be replaced for Disco 4 ?  
Post #232652613th Feb 2023 5:10 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20853

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Transfer box + locking rear diff

5yrs/75k miles (80k for D4)


Front diff + open rear diff

10yrs/150k (160k for D4) My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #232653113th Feb 2023 5:38 pm
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