How can you tell if your lighter uses butane or lighter fluid?

To determine if your lighter uses butane or lighter fluid, check the type of lighter. Butane lighters typically have a refillable canister and a nozzle for butane refills, while lighter fluid lighters (often referred to as "Zippo lighters") have a cotton wick and a reservoir for liquid fuel. Additionally, if you see a clear or slightly colored gas escaping when you press the ignition, it’s likely butane; if it has a distinctive smell and is oily, it’s likely lighter fluid. Always refer to the manufacturer's instructions for clarification.