I know generic store stuff will do the trick.

im just curious what the pro's use. like stuff called dex cool

what do you guys use in your cars?

 

hmm... I dont know much of antifreeze, I do have dex cool in my car, if you have the green stuff in your car, your probly best of staying with that stuff, cause if you mixed the green and dex cool (changes various colors, red, orange, brown) dex cool can turn the inside of your engine into jelly and it takes forever to clean it, it could also really screw up the engines..
and you probly already know this, if so, sorry for wasting a message like that, haha, but I just wanna warn about dex cool... and the stuff sometimes arent all that great.. :-\

 

green stuff, all comes from the same plant