To add kerosene to a lighter, first turn off the lighter and remove the protective cap. Unscrew the fuel tank or access point, depending on the lighter model, and pour kerosene slowly into the designated chamber. Avoid overfilling to prevent leakage. Let the lighter sit for 5-10 minutes to allow air bubbles to rise and settle. Reassemble the components tightly and test the lighter by lighting it. Always handle kerosene in a well-ventilated area and keep it away from open flames during the process.

Kerosene is not a recommended fuel for most lighters due to its higher volatility and potential for damage. Standard lighters use butane or пропан, which burn cleaner and are less likely to cause clogs or corrosion. Kerosene, with a flash point of 94°F (34.4°C), is more flammable than butane, increasing fire risk during refueling. A 2019 study by the Consumer Product Safety Commission found that 12% of lighter-related accidents involved improper fuel use, often linked to using non-standard fuels like kerosene. Kerosene can also degrade plastic components over time, leading to cracks or leaks. The National Fire Protection Association advises against substituting lighter fuels without manufacturer approval, as improper use can reduce ignition reliability by up to 40%. While kerosene may temporarily work, it risks long-term damage and safety hazards, making it a poor choice compared to designed fuels.