I parked my car for about 20 minutes, and when I came out and parked it on the side of the street, I noticed some small green drips on the snow that was under my car. I would guess it's coolant. I checked my reservoir (had to open it up since it's so dirty I can't see through the plastic) and the level is pretty low, a little bit below the MIN mark. My question is: Should I try to find the leak ASAP or can I just add some pure coolant to top it off?

 

Top it off, find the leak, fix it. Probably just a bad hose.

 

Can I top it off with 100% real prestone? I heard I had to mix 50/50. Or does such a small amount not really matter?

 

use pure if you wish, but no more than a quart and a half,. A quart and a half will increase the concentration to 68% assuming the actual concentratin is 50%. The maximum recommended concentration is 70%.