The other day while driving home my serpentine belt blew. I immediately went to the nearest automotive place and they replaced it without any further damage being done to the car. At the time I happened to notice that the coolant level looked fine. According to the guy at the shop I had a loose oil cap which we believe may have caused the serpentine belt to slip off since there were no other indicators of problems with the car. He showed me what to watch for under the hood so I've been checking it the past 2 days and am noticing that my coolant level is suddenly low. I always park in the same place and haven't noticed any leaks. Would some of the coolant have leaked when the belt was replaced? This brings me to my next question. Since it's pretty low, can I just add more and if so, do I need to add the same type, the red Toyota kind or can I pick up another brand at an auto parts store? I've been reading up online and saw a few brands that were recommended, but didn't know if another brand could be mixed with what is already in there. I apologize for the dumb questions, but I'm female and car maintenance really isn't my thing so I'm trying to avoid taking it to the dealership if I can do any part of this myself or with a little guidance. My local dealership charges $130 for an oil change/tire rotation so as you can see I'm trying to avoid the steep fees. Thanks for the help. Forgot to mention, it's a 2010 Toyota Corrolla S.