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ATF shelf life
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 14129

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3
ATF shelf life

May I pick ur brains plse , I got 10 x litres of mannol AG55 3 x years ago and just not got round replacing my old ATF , it’s still unopened and been stored in my shed

Will it be ok to use or should I replace it please

Many thks as always for ur help   
Post #235957221st Jan 2024 1:33 am
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nebc100
 


Member Since: 20 Sep 2017
Location: Altlinster
Posts: 420

Luxembourg 

I would say that if it hasn’t been opened, then no problem.  
Post #235959021st Jan 2024 11:25 am
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6753

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

Unopened and stored in a nice, cool place it’ll be fine. I don’t know if there is an official recommendation but I’ve heard the number 5 years sometimes being mentioned.  
Post #235959621st Jan 2024 12:40 pm
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ronp
 


Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15263

Scotland 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

I’ve got a 5ltr unopened plastic container of Castrol D3 engine oil, must now be about 15 years.

Happy to pass on for free collection to a local D3 owner if it’s still usable. Confused  
Post #235960121st Jan 2024 1:34 pm
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6753

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

It’ll probably still be ok for a Chinese tractor that will accept anything from sunflower oil upward… but yeah Laughing  
Post #235960621st Jan 2024 2:07 pm
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HairyFool
 


Member Since: 04 Jan 2023
Location: North Essex
Posts: 676

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto ZanzibarDiscovery 4

Engine oil is only within spec for a specific time, typically 5 to 7 years. Most oils are a blend and few blends are 100% stable so will separate eventually. The agitation of a running machine will stop that but then it brings in other aspects of deterioration.

LR advocate oil changes every year but other manufacturers opt for longer times. As oils have to comply with specifications if a change is recommended after 2 years in practice the life is probably 3 years in an engine.

I have always been a bit dubious about the recommended life of the hydraulic oil in brakes but not complying with manufacturer advice is risky. A visitor from the dark side, my other vehicle is an is still an EV. Strictly speaking its SWMBO.  
Post #235961721st Jan 2024 3:55 pm
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ronp
 


Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15263

Scotland 2014 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

kajtzu wrote:
It’ll probably still be ok for a Chinese tractor that will accept anything from sunflower oil upward… but yeah Laughing


Good to know. Thumbs Up

But reckon that means its value has dipped as low as can go and it’s now about to pass through its maturation phase.

So I’ll just keep it for a few more years and then it’ll be worth a fortune. Wink

Laughing  
Post #235964321st Jan 2024 8:21 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 14129

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Many thks as always for the replies , good to know in the future as well about engine oil   
Post #235965321st Jan 2024 9:52 pm
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