Raw gasoline smell in cabin that only smells if the car isn't moving and the heater fan is on. So, it's under the hood and extremely minor. Fuel economy unaffected. No visible drips, puddles or stains based on very preliminary inspection.
This is the Ford 3.0L V6 from the early 2000's that was in piles of Fords and Mazdas.
If you know of any typical issues associated with this, please let me know.