"real world experience w/synthetic oil"

1. It (Mobil1) has rather limited shelf life, it evaporates?.
2. I can't see how being in an engine would extend that.
3. The " real world" here is based on over 12 gals in 1gal/5qt plastic never opened containers, purchased in different weights, purchased at different times/stores,, stored in different indoor settings for over 3-10 years.
4. Seldom is this oddity discussed mentioned.
5. Conventional oils seem to be relatively free of this outcome

Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.