What is the consistency of the Finish Line Dry Teflon?
I'd guess the old bottle has lost some of its carrier fluid (the clear liquid that separates on-top when the bottle is left to stand) and when shaken, the old bottle has a lot more of the lubricant compared to the newer bottle.

Either chuck the old bottle, or add a very small amount of something volatile like methylated spirits perhaps and use it up on a junker bike.  

Only use the newer stuff on your good bikes.