Can an opened can of oil be kept for a certain amount of time before it doesnt work as well protecting your engine ?

I have 3-4 cans of Ford 5w-30 for the missus Zetec-S. When I have done oil changes it only uses 4 out of the 5 ltrs in the car, so im always left with about 1 ltr for topping up but it doesnt use ANY oil between changes .

What i was thinking can they all be pored into 1 can and then used on the next oil change, or does oil degrade after say 12 months if the cans been opened ? I dont want to risk it, if its going to damage her engine.

Cheers for any info esp Simon (oil man) if he reads this

 

For Of Attention??

 

Oh yeah, well spotted

 

sorry mate just couldnt resist it

 

it'll be fine

Alex

 

Will it alex ?

BTTT

 

AndyRST That oil has been stored under the ground for the last 4 to 6 million years, so I'm sure another year or two of storage will be OK

 

 

when you put it like that

If you dont ask you dont learn these things

 

YES

 

Why the

 

probably the above comment from doug

 

On an unaopened can, the shelf life depending on quality is 3-5 years, the VI Improvers "drop out".

Cheers
Simon

 

Cheers Simon.

What about a can thats been opened ?

 

12-18 months

Cheers
Simon

 

Cheers Simon

 

like I said... it'll be fine

 

No it isnt fine. If its an opened can and older than 12 months i wont be chancing it.

 

theres no chance till after 18 months...

as Oil man said too...

why won't you accept advice from people that know?

 

I DO accept advice from the people that know, Simon is the 1st person to give a rough time frame for the use of opened oil and im taking the safe side of that advice and not using the opened cans over 12 months old.

Alex love ya man

 

not like ya car is worth much anyway

now a proper white rst like christians

 

Open yours eyes old man, i stated this on the opening post :

Now trott off and hassle some little noob about their sig size or avatar size and dont forget to quote them the rules

 

I'll have all your "old" oil please