Originally Posted by Jonzimm22
Ok i got a new question. What exactly do you put in the new radiator when your done? Can you put just antifreeze, or do you have to mix it with distilled water
It depends on exactly what you are doing when you change the radiator. The approximate dilution you need is 50/50 in the entire system.
If you are just replacing the radiator, when you disconnect the hoses, a lot will drain out but there is still an amount of 50/50 that will remain in the block. You want to fill with 50/50 so either dilute the 100% antifreeze before filling or buy prediluted (cheaper to buy 100% and dilute yourself).
It's best if you flush all the old coolant out (how old is it?). You can do that buy connecting hose connections to the heater hoses and running it through the system.
With regards to green, and this will spark all sorts of debates, yes YOU CAN use Prestone any color antifreeze with whatever is in there.
Buy a tester. It has a bulb and will measure the boil/freeze points. Test what in the radiator after several heat/cool cycles.
It also depends on where you are located if you need the -34 freeze protection. Straight water actually cools better but you do need corrosion inhibitors in anti freeze or other off the Shelf additives.
If you flush, there will be more straight water in the block, so you need to add more 100% anti freeze. Again you want your net mixture to be 50/50. Don't forget to fill the overflow tank.
I just replaced my radiator last weekend. I flushed the system and added two gal of Prestone and the rest was filled with water. According to the tester, it was right on the money.