👉 Lighter fluid, also known as mineral spirits or kerosene lighter fluid, is a volatile liquid used primarily for igniting small flames and for cleaning and degreasing surfaces. Historically, it was a common ingredient in gasoline and used extensively in automotive applications for starting engines due to its low boiling point and ability to vaporize quickly. However, its use has diminished over time due to environmental concerns, particularly its contribution to air pollution and its toxicity. Today, lighter fluid is often replaced by more environmentally friendly alternatives, though it still finds niche uses in specific industrial and automotive applications.