ABSTRACT
Soot particles, which often result from incomplete combustion, frequently enter the lubricating oil system via gas blowby. When lubricating oils become contaminated with soot, they can lead to issues such as increased wear and the fouling of critical machine components like injectors and exhaust lines.
To combat this problem, lubricating oils are formulated with dispersant additives. These additives are specifically designed to keep contaminants, including soot, suspended in the oil. This prevents them from aggregating into larger particles that can clog filters and minimizes their deposition on machinery.
Traditional methods exist to assess the dispersant properties of oils already in service.
A new approach focuses on evaluating the dispersancy properties of lubricating oils during the selection process, prior to their use. By creating control samples containing various levels of particulate contaminants and assessing them using advanced blotter spot techniques, this method allows for a direct comparison of the dispersant effectiveness of fresh oils. This approach supports more informed decision-making regarding lubricant selection and application.