The Zippo lighter uses a specific type of fuel known as Zippo lighter fluid. This fuel is a highly volatile mixture of isopropyl alcohol and denatured alcohol, which provides a quick and reliable ignition for the lighter. The choice of fuel is crucial for the lighter's performance, as it needs to be both flammable and safe for use in the enclosed space of the lighter.

The use of isopropyl alcohol and denatured alcohol is intentional due to their high volatility and low flash point. These properties ensure that the lighter fluid vaporizes quickly when exposed to the flame, allowing for a consistent and strong flame. Additionally, the denaturing process involves the addition of a non-flammable substance, typically methanol or benzene, to make the alcohol unsuitable for consumption, thereby enhancing the safety of the product.

Data from Zippo Manufacturing Company, the original manufacturer of Zippo lighters, indicates that the lighter fluid is designed to provide a long-lasting flame and easy ignition. The company's official website states that a single fill of the lighter can produce up to 150 ignitions, making it a cost-effective and convenient choice for users. The use of high-quality alcohol-based fuel also contributes to the longevity of the lighter's mechanism, as it is less likely to cause corrosion or damage compared to other types of fuel.