Gary - I used the cleaner too.
Like you, I am concerned this is a temporary fix.
I WILL be careful with the ashtray screws.
As far as my paint, it is still glossy.
We do not have the sun fading that you do in FLA.
Can you tell me what your temp gauge reads during normal driving. Mine reads low 80's during normal driving, but consistently rises to 90+ in heavy traffic.
The radiator, thermostat, water pump, and hoses have been replaced by previous owner. I wonder if this is normal or should I be worried