Oil Longevity?

[PiKe]

I have some synthetic oil left from this time last year when I did an oil change, assuming the bottle has been resealed properly, should this oil be OK to use in my next oil change? I know the cooling properties of oil changes as it ages but does it apply to stuff in the bottle which has simply been opened but not used?

 

[Hagar]

Should be fine if sealed as you say. I usually have a 5 litre top up supply which lasts ages as I use it a half litre at a time between services.

 

[Matt82]

itll be fine provided it wasnt stored in a pond.

cars now have oil change intervals of upto 2 years and the conditions in the engine are far worse than those inside a sealed bottle

 

[PiKe]

Cheers.

 

[Howard]

itll be fine provided it wasnt stored in a pond.

cars now have oil change intervals of upto 2 years and the conditions in the engine are far worse than those inside a sealed bottle

This

 

[Simon]

If your not sure just give it a good shake before putting it in

 

[andy_mk3]

Been in the ground millions of years, I can't see how 2 years in a nice bottle is going to harm it much!

 

[NeverWinter]

If it tastes funny then it's off and you shouldn't use it...

 

[PiKe]

Been in the ground millions of years, I can't see how 2 years in a nice bottle is going to harm it much!

Erm.

 

[rossk26]

If it tastes funny then it's off and you shouldn't use it...

 

[Simon]

Been in the ground millions of years, I can't see how 2 years in a nice bottle is going to harm it much!

By that thought process so has petrol.