to coolant or not to coolant? Options

[Akira_g4]

Alright heres the thing. My coolant is extremely low, and im wondering if i should flush it out or just add more coolant to it. I've had the car for a little more than 7 months and I'm guessing the toyota dealership filled it up right before i bought it. (damn me for not checking the fluids!) Soo i called around and to get the whole thing flushed out would cost around $120-135. And containers of red factory coolant cost around $20. i exactly dont have $120-135 much on me. so i'm not sure what i should do fill it up or get it flushed.

[yyet]

When I flushed my radiator, the directions that came with my flush said to make the car warm... which is actually really hot. However, overall flushing it is pretty easy. If you can change oil then you can do this no problem. Its just like this little white plastic thing that you twist off. Anyways, some precautions would be to wear some safety glasses. I wore my chem lab ones (which is a good thing cuz it dripped onto it). Don't leave the radiator fluid on you for too long, it will cause chemical burn. Thats pretty much it... Good luck!!!

Yet