The thing you should never do is put 100% water. You can buy the 100 percent antifreeze(the green color kind) and just mix it yourself. You shouldn't put 100% antifreeze either, depending on where you live and the usual temperature you drive through. For a more colder area, you would put more antifreeze than water and hot places about 50/50 antifreeze/water.
A 2000 Mitsubishi eclipse uses any good general-purpose antifreeze. Look for the type that is labeled for any make and model.
5w30 castrol gtx
What type of antifreeze do I use for a 2000 bonneville
What type of antifreeze do I use for a 2000 bonneville
My owner's manual recommends 5w 30
The type of antifreeze to use for a 2001 Mitsubishi Eclipse is one that is mixed 50/50. Most antifreeze brands will work. The Prestone brand of antifreeze is probably the most expensive.
Green
red
DexcoolDexcool
R134a
5W 20
A 2000 Buick uses Dexcool.