The crossword solution for the term 'fueled (up)' is 'Gassed' (6 letters). Gassed is a term used to describe the process of filling a vehicle with fuel. It is often used in the context of filling up a car with gasoline, but can also be used to refer to any type of fuel, such as diesel or propane. The term 'fueled (up)' is often used to indicate that a vehicle has been filled with fuel and is ready to go.