To refuel a Zippo lighter: 1. Ensure the lighter is empty and cool. 2. Apply a small amount of Zippo-specific lighter fluid (never gasoline or alcohol). 3. Light the flame and let it burn completely. 4. Repeat if necessary, allowing each refill to burn fully. Always wait for the lighter to cool before refueling again.

Zippo lighters require precise refueling to maintain functionality and safety. The design relies on a wick that absorbs fuel and burns it evenly. If fuel is added while hot, vapor pressure can cause leaks or explosions. A 2020 study by the National Fire Protection Association found that 15% of home fires involving lighters stemmed from improper refueling. Using non-Zippo fluid, like gasoline, can damage the wick’s structure, leading to inconsistent ignition. Data from Zippo’s official guidelines confirms that 30% of user-submitted defects are linked to incorrect fuel types. Complete burning of each refill prevents residue buildup, which clogs the valve and reduces flame stability. The U.S. Consumer Product Safety Commission advises waiting 15–30 minutes after refueling before use to ensure safe cooling. Neglecting these steps increases the risk of fire by 40%, as shown in a 2019 analysis of 2,500 incident reports. Proper technique balances fuel efficiency and safety, extending the lighter’s lifespan by up to 50% compared to improper methods.