lowSAPS

LowSAPS is a term that typically refers to engine oil formulations designed to minimize the content of sulfated ash, phosphorus, and sulfur. These elements, when present in higher concentrations in engine oil, can contribute to the formation of deposits and ash within the exhaust aftertreatment systems of modern vehicles, particularly those equipped with diesel particulate filters (DPFs) and selective catalytic reduction (SCR) systems.

The reduction of these specific components in lowSAPS oils aims to prolong the lifespan and efficiency of these sensitive emission control devices. Over time, high levels of sulfated ash, phosphorus, and sulfur can clog DPFs, leading to increased backpressure, reduced engine performance, and potentially costly repairs. Similarly, these elements can poison or deactivate the catalysts used in SCR systems, hindering their ability to reduce harmful nitrogen oxide (NOx) emissions.

Therefore, manufacturers often specify lowSAPS engine oils for vehicles equipped with these advanced emission control technologies to ensure their optimal functioning and compliance with increasingly stringent environmental regulations. The use of lowSAPS oil is a critical maintenance practice for ensuring the longevity and performance of modern diesel and gasoline engines designed with aftertreatment systems.