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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 4140

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Diff and transfer case oil

Time to change the oils. Front / Rear diff and transfer case Gear Oil SX75W-90 GL-5 Semi Synthetic OK for the job? 1999 Defender TD5 110

Regards
John M0VAZ
Do you know what a nemesis is?

Post #792096 11th Sep 2019 1:31pm
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windy81



Member Since: 14 Mar 2018
Location: North Wales
Posts: 171

Wales 1993 Defender 90 200 Tdi HT Montpellier Red

GL-4 i think is what recommended, but most say GL-5 is ok too.

Post #792124 11th Sep 2019 2:44pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 520

Canada 2000 Defender 110 Td5 XS CSW Epsom Green
Re: Diff and transfer case oil

excossack wrote:
Time to change the oils. Front / Rear diff and transfer case Gear Oil SX75W-90 GL-5 Semi Synthetic OK for the job?



GL4 is spec. If its never had synth before sythn and semi synth can hasten leaking at seals. Good luck Thumbs Up 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)

Post #792131 11th Sep 2019 3:53pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 4140

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue

Cheers, I am not 100% sure what synth I have used in the past.(short of digging out previous receipts) 1999 Defender TD5 110

Regards
John M0VAZ
Do you know what a nemesis is?

Post #792133 11th Sep 2019 3:57pm
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bankz5152



Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 1404

2004 Defender 110 Td5 DCPU Epsom Green

EP 90 Mineral Oil is the only thing that should go in diffs cvs and tx boxs Instagram @defender_ventures

Post #792195 11th Sep 2019 7:10pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 4140

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue

Found the old containers in the shed;

SX75w/90 GL4 Gear oil
EP80/90 GL4 Hypoid gear oil 1999 Defender TD5 110

Regards
John M0VAZ
Do you know what a nemesis is?

Post #792200 11th Sep 2019 7:27pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 3444


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Post #792202 11th Sep 2019 7:29pm
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 520

Canada 2000 Defender 110 Td5 XS CSW Epsom Green

[quote="bankz5152"]EP 90 Mineral Oil is the only thing that should go in diffs cvs and tx boxs[/quote

Agreed unless of course you have a Roamerdrive Thumbs Up 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)

Post #792221 11th Sep 2019 8:35pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 4140

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue

So....... One says EP90 for both. One says EP90 for axles, and 75w/90 GL5 for transfer case! 1999 Defender TD5 110

Regards
John M0VAZ
Do you know what a nemesis is?

Post #792227 11th Sep 2019 8:53pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 3864

2006 Defender 110 Td5 USW Zermatt Silver

75-90 in mine and fully synthetic. I wouldn’t run mineral in a transfer box.

Post #792233 11th Sep 2019 9:01pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 4140

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue

75/90 and EP80 ordered for the job. Along with engine oil and filters plus gear box oil. 1999 Defender TD5 110

Regards
John M0VAZ
Do you know what a nemesis is?

Post #792908 13th Sep 2019 9:13pm
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miker



Member Since: 13 Sep 2015
Location: West London
Posts: 1430

United Kingdom 1999 Defender 110 Td5 CSW Rioja Red

Ep 80/90 GL4 in mine, front back and transfer case.

All done 220k and seems fine!

Post #792947 14th Sep 2019 12:40am
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