My coolant/antifreeze/radiator fluid/whatever it's called is a bit low. I wanna add some in but I've never done it before. I know the adding part is easy all you do is put the stuff in but idk if there's a certain type of coolant I need to put in like there is different oil weights? I'm in an 03 screw 5.4.

 

Depending on how low, if its not much just buy a jug of premixed coolant, prestone or what ever brand you prefer, (normal green stuff not orange)