#fuel supplement
- Additive — A chemical substance added in small quantities to a product (such as fuels, lubricants, foods, cement, or polymers) to improve its properties, prolong its preservation, or impart new structural characteristics; as an adjective, it describes a process based on accumulation, summation, or progressive addition (e.g., additive manufacturing). This structural element is indispensable in modern industrial processes for material performance optimization.