Oil shelf life

[Ama0787]

Do drums of motor or gear oil have a shelf life?

Particularly wondering about something like a 5 gal drum unsealed on day one and then used over the course of 5 years anyone thing there are any reasons not to do this or any negatives associated with oil stored over extended time periods.


Also any opinions on a 55 gal drum of methanol that has had a hand pump on the open pour spout? I had one of these for about 8 years

TIA,
Anthony

 

[TurboTravis]

The oil is fine as long as it was sealed after each use. I'd be very weary of the methanol though, esp if it was not resealed after each use.

 

[Colt45ws]

+1 Oil is fine. Methanol...eh, not so sure.

 

[Ama0787]

Methanol has a hand pump over the opening should keep air contact to a minimum. I believe there is a one way ball in the pump that helps build pressure to get the siphon going so that should also be a seal against outside air getting in.

Think shaking or stirring barrel is a good idea or do you guys think it breaksdown in to other compounds? Ive been told it does and also been told it is fine so i really do not know.

TIA,
Anthony