I own a 1998 Pontiac Grand Prix with 168,000 miles on it. Will be replacing radiator next weekend because it is leaking. I will also replace radiator hoses and water pump, just because I would rather do it now instead of later. Original radiator, water pump and hoses. I need some advice about antifreeze. Should I stick with Dex-cool or change to a different kind? green, G-05 or another? I have read many good things about G-05 here on this site. Please any advice would be helpful.