I checked the fluid in the radiator today and it has a brownish color to it.Since the car uses dex-cool,I'm not sure if this is suppose to be the color or not.It was flushed around 20,000 miles ago and I was told that it was good for 100,000. I don't have any sort of overheating problems.Should I just go ahead and drain it? I see alot of people having overheating trouble after doing this and I wonder if I should have someone do it for me.And how many jugs of dex-cool should I need,if i do it.Thanks

 

It's a cheap remedy and pretty easy to just drain it out and put in some new coolant. Just make sure its dilluted 50/50 with water when you put the new dex cool back in. I did it with no problems.
Bill