Coolant
I have a Chevy cobalt (2008) a few weeks ago i
was some what low on antifreeze so i not even a
half cup of water in just till i got antifreeze i try to
flush system but i dnt kno how but i did get all the
antifreeze out the rezovoir.. and added 50 50
supertect... But my car seems to slowly rise in
temp to bout 235 I think I hear a fan kick on but 5
sec later I hear pressure kick off....no idea what's
going on...I'm kinda worried but no lights are on I
have no leaks I do need oil change...any advice??