Print

[Piggle]

Hi all I need to buy some more EP90 oil. Don’t need that much at present but works out quite a bit cheaper buying 5 litres as opposed to 1 litre.
Do I need to use it within a certain timeframe once opened or will it keep without degrading/ absorbing moisture for a year or so?
Thanks.

[Worf]

Should last for years!

[nathanglasgow]

£45 for 20lt delivered from Smith and Allan. It does not 'go off'

[maindy]

I get mine from here (https://www.smithandallan.com/) in a 20 ltr container, you will be surprised how much you go through, cant answer your question on shelf life but would have thought a long time, just give them a buzz.

[Wittsend]

Not hygroscopic that I'm aware of ...

When it came in tins, they never rotted out from the inside.

If there were any water content, the heat from the gearbox/mechanism would drive off any water. Water and oil don't mix.

Sunlight might be an issue, but generally we store our oil in a dark corner of the garage.

 

[maindy]

Here you go auction: #370337449537

[Wittsend]

 
And don't forget - S2C members can claim a discount.

We can also get a discount from Opie Oils

All these discount details are listed on the club website AND in the club magazine.


 

[Davidss]

... If there were any water content, the heat from the gearbox/mechanism would drive off any water. Water and oil don't mix.   ...

Well yes, but.
I gave some thought to this when someone asked recently about the 'safe' temperature for gearbox  or transfer case oil.
The consensus seemed to be 55-60 degrees C was normal, and therefore safe.
I held my tongue because I wasn't certain.

What I did recall was asking Duckhams (which dates the recollection) about the need, or not, to fit an engine oil cooler in a BMC Mini, where the engine oil was also the gearbox oil.
I was told 100C was safe, plus it burnt off combustion by products, while by 120C the life of the additives would be shortened.
I duly fitted a capilliary oil temperature gauge, to prove conclusively that I didn't need an oil cooler, and that it took a long time to get the oil up to temperature, a lot longer than it took for the coolant to reach normal working temperature.

I trust you can see why I don't think 55 - 60C will burn off water, from condensation or contamination.

I do agree with the view that EP90 will not absorb water while in storage, also pointing out that any condensation in a part full container will migrate to the bottom of the container.

Regards.

[Piggle]

Great many thanks all. Larger quantity it is then. 👍

[shiel777]

It is getting rather hard to get hold of though