[Humphrey]

If fluid on driver side floor then you have a bad clutch master cylinder.
that fluid is brake fluid.
the part is cheap and replacement of part is easy easy.
Was the first thing I replaced on my car.

Its literally a bolt and two c clips.
If you are going to perform the repair then you're gonna need a helper as you will need to bleed the clutch.

 

[onlycodered]

If you see oil on your floor mat that would be the master cylinder. The slave cylinder is at the clutch end while the master is at the pedal end.

 

[zetecDon]

Moved to "General Technical Chat" as this is a maintenance question and not a introduction thread.