The specific type of engine oil required for a Fiat Panda depends on the model and year of manufacture of the car. In general, however, most Fiat Panda models require a synthetic 5W-40 or 5W-30 engine oil. It is important to use high-quality oil that meets the manufacturer's specifications to ensure optimum performance and long engine life. It is recommended to consult the owner's manual or consult a certified Fiat garage to determine the correct type of oil for your specific vehicle. Using the wrong type of oil or an oil of lower quality than recommended can lead to reduced engine performance, increased wear of engine components and potentially costly repairs.