DOC

DOC stands for Diesel Oxidation Catalyst. It is an emissions control device used in diesel vehicles that primarily works by catalytically oxidizing pollutants in the exhaust, such as carbon monoxide (CO), hydrocarbons (HC), and some organic compounds, into carbon dioxide (CO₂) and water (H₂O). Typically, the DOC is integrated into the vehicle's exhaust system and works in conjunction with other emissions control technologies, such as SCR (Selective Catalytic Reduction) and DPF (Diesel Particulate Filter), to help diesel vehicles meet stringent environmental regulations.