This 5.4L used engine with VIN L is engineered for flex fuel vehicles, capable of running on E85 ethanol or gasoline. Its dual-fuel system offers drivers the flexibility to choose between fuel types based on availability or cost. As a used engine, it provides an affordable option for replacements without compromising on quality. The single overhead cam design ensures smooth operation and efficiency across both fuel types. Ideal for eco-conscious and budget-oriented users, this used engine combines versatility with reliable performance for a wide range of vehicles.