I just put this in my other thread, but because of the esoteric title, many may not go in there.

I would appreciate the following:

After you drive the car, please unscrew your gas cap and tell me if the seal on the inside of the cap is wet.

In troubleshooting a potentially very expensive problem, I'd like to know if that is normal. If you wouldnt mind telling me your apx fill level when you check, I would appreciate it.