This term is maintained inside the grouped glossary to provide context without creating a low-value standalone search page.
Related terminology
DPFAn exhaust aftertreatment component that traps particulate matter from diesel combustion and requires monitored regeneration and ash management.GPF / OPFA particulate filter used on gasoline or petrol engines, particularly direct-injection applications. Monitoring and regeneration strategies are platform-specific.SCRSelective catalytic reduction uses a reductant such as diesel exhaust fluid to reduce nitrogen oxides in suitable exhaust conditions. Dosing, temperature, NOx sensing and catalyst state are interdependent.