Non-detergent oils are a type of lubricant that lacks detergent additives commonly found in conventional oils. These oils are typically used in older or vintage engines that do not require or benefit from detergent properties. Non-detergent oils provide basic lubrication to engine components without the added cleansing properties. While they may not have the ability to clean and disperse contaminants like detergent oils, non-detergent oils offer sufficient lubrication and protection to prevent excessive wear and friction in less demanding applications. These oils are commonly used in certain small engines, air compressors, and other machinery that do not accumulate significant deposits or require extensive cleaning. Non-detergent oils offer a simple and cost-effective lubrication solution for equipment that does not require the additional cleaning properties of detergent oils.