Hey, I can be very anal about some things, and I often over analyze things so go easy on me.
I have an 06 grandprix I recently bought with 20K on it. Car is mint.
Thing is, ALL of my vehicles have been much older, 1980s, my newest was 1992 which I traded in.
I've yet to have a problem using Dexcool, however I know it is important to have the system leak free and air free. I had 226,000 on my 92 pickup running dexcool since 95, and had zero problems, however I kept the system tight, and full.
The 06 grandprix i noticed no matter what I do, when cold will have about an inch worth of air in the filler neck of the rad. The level stays WELL above the rad it self, but not right up to the cap like my older systems. I am assuming this is an intentional design as the overflow tank has plenty, the hose to the tank is good as is the rad cap. I also noticed the overflow tank has some sort of small elbow\bendy air trap thing the hose hooks onto, and its not right to the bottom of the tank.
I just want to be sure its normal to have a small air gap in the filler neck when cold. We also have a 2006 saturn vue now, however that has the pressurized overflow tank, So not really comparable
Sorry if this seems like a retarded question, but Like I said I can be anal, and over analyze things.
