So i have a 2006 cobalt ss . At first it was running rad fluid out like in a month, now it is everyday i have to fill the overflow back up to the line ... one time out getting on boost and it drops like two inches. no smoke, no leaks, no power loss. Really am at a loss and dont want to take it somewhere to be raped for $$ that i dont have. Havent even made my first loan payment yet. So any help i would be greatful for.. Also oil doesnt look bad but i did notice a bit of orangish film on the underneath of the oil cap...also , sometime when coming to a stop at like a red light or stop sign, my idle fluxes and sometime stalls.

 

Which bottle are you refilling? The one up by the drivers side or the fill neck in the front of the car by the supercharger?

 

The overflow right next to the fuse box on drivers car.. no smoke, but when i take it out and run boost it sucks it down like two inches. today i noticed a bit of power loss at low rpms and at higher rpms it would hesitate and only go to 4000