like Amsoil, Redline, Mobil 1 etc., If so, whats the max time to keep shelve'd before it starts breaking down after purchased new from store?

 

I read a tech note from an oil company a couple years ago. It was for conventional oil. They said 3 years is tops under any condition because it will turm waxey.

I think synthetic would last longer.

 

Blackstone tested a bunch of oil in cans that were decades old, they tested fine.

 

Fossil lubricants have a shelf life or is it the additives that have a shelf life?

 

After years of in-depth study, it has been realised that an oil's shelf life is in direct correlation to any new product being introduced by the oil company. The "old " product then becomes useless and no good to use. Just like when synthetic oil came around, regular oil never could trusted again.,,

 

that stuff has been in the ground for thousands and millions of years I think it should last your lifetime on a shelf