Mapping of dirt contamination in heavy duty engines through oil monitoring

Dirt entrance on internal combustion engine's air inlet systems are a common issue to fleet owners. Heavy-duty engines are more susceptible to this due its great air volume aspirated. Aiming to avoid it manufacturers employ increasingly resources to conduct research in the field and to develop more efficient air filtration systems to reduce the probability of this occurs. Anyway, the early diagnosis are the best way to avoid expensive damages to the engine. This study aims to explain how fail due dust aspiration occurs and how to interpret periodic oil analysis in order to preserve the power units and reduce the risk of incorrect diagnosis.