I have a 2000 Impala 3.8L that the A/C is not working very well... I think it might need charge... so anyway I was ready to go out and buy a gauge and some 134a incase I needed some. Well I was talking to someone who told me I should go with either Freeze-12 or ES-12a. they told me very little about them but did say they are both colder then
134a and that ES-12a was the coldest, and less expensive and most importantly are compatable with 134a so i don't need to evac the system... obviously if I need to add some I have to track down a leak somewhere, and i'll take care of that.Anyway my question is has anyone used Freeze-12 or ES-12a and how good is it?