Alright, im trying to change my anti freeze in my 96 z28. Where is the drain for the radiator cap located on the car? I can't seem to find it -.-

Also, I was going to use Prestone anti-freeze, its a greenish color and its already mixed. Is that bad, because I heard you shouldn't change from the orange Dex-cool anti-freeze that comes with the car? Does it make a difference?

 

Nothing drains better or faster than pulling off the lower radiator hose.
When you buy pre-mixed anti-freeze, you're paying for 50% water. It's free from your tap, so mix your own.
And, I would stay with the same stuff that's in there now, Dex-cool. Dex-Cool, and other "long life" coolants got a bad rap because due to the "long life" designation, people would never change their coolant or flush the system. Corrosives can build up in Dex-Cool just as easily as conventional coolant, so if you treat it the same and change/flush regularly, you should have no problems. When you break down the cost versus how long you should keep it in the system, it's cheap insurance really.

 

if you want to make less of a mess, facing the car the drain plug is on the bottom left of the radiator. it just screws off.

 

alright, thanks guys.

I did mix it myself, im not great with cars but im not that dumb either