Today, I filled the coolant agian, and it disapeared after I drove it. I looked down by the overflow tank and what did I see? There was a poudle of coolant about an inch deep, and it was sitting right under the overflow tank, not leaking on the ground. Maybe, just maybe that is where all the coolant is going, so tomorrow I am gettting a new overflow, and will see what happens. Cross your fingers

 

Do you have an aftermarket AST? One with a cap with a vent lever on it? If so, go get a new one and it should solve that problem. They go bad after awhile and dont fully pressurize, then when you shut the car off, it shoots some of the coolant to the overflow tank, which after awhile fills up and overflows.

 

The overflow also cracks sometimes near the hose intake and will cause it to leak, might want to check that too...

K