I have worked on thousands of Saturn Vues. I've repaired engines, VCT solenoids, coils, plugs, timing belts, brakes, ac compressors, PCMs, wiring issues, window regulators, catalytic converters, etc on these vehicles. When it comes to fluid/maintenance related items, I can tell you the check plug and drain plug sizes, filter numbers, and belt size from memory.
If you are going to insist that I have not "actually worked on" a Saturn Vue when you have no idea who I am or what I have or have not worked on, then I can't help you.
I can assure you that a large pool of unidentifiable fluid underneath the vehicle is not a common problem with this vehicle.
You can in fact check all of the fluids on your Vue farily easily (except the transmission on the 2.2l-you will need a floor jack) and I can walk you through it if you would like.
I will need to know which engine you have if you do since you stated earlier that you weren't sure.