During a pre-flight inspection, what should you check for regarding fuel?

During a pre-flight inspection, it is essential to check both the fuel type and the quantity. The type of fuel matters because different aircraft engines require specific fuel types, such as avgas or jet fuel, and using the wrong type can result in engine failure or damage. Additionally, verifying the quantity of fuel ensures that there is enough for the planned flight, accounting for taxi, takeoff, en route requirements, and reserves. This assessment helps ensure safety and optimal performance during flight. Checking only the quantity or relying solely on a fuel gauge reading would not provide a complete safety check, while considering the fuel price is irrelevant to immediate flight safety and operation. Therefore, confirming both the fuel type and quantity is a critical part of pre-flight preparations.