Last time I had some 4.0 to use up so that went in.
From a sealed/unopened container hopefully?
It is Dave we are talking about here - I will guarantee they will be sealed and in date order with a strict rotation being adhered to at all times

Yes, i would be surprised to hear otherwise. The remark was a bit “tongue in the cheek“ but aimed more at the uninitiated, who might get the wrong idea and use up their slops!