Personally I feel the idle test is more telling that the driving test. From everything I've read about Pontiacs, it's usually the idling that makes them run hot! So basically if our FGF can pass the idle test, they should be ok driving.

I still watch the temp gauge every time we drive on the beach as it is usually very warm (90* yesterday) and it is total stop and go bumper to bumper for miles upon miles. I am feeling pretty good about my Bird now after all the years of running hot.

It's a great feeling once you get to the point where you are fairly confident with your car. I know for me that was not the case for the first 7 years of owning the car!