An Exhaust Gas Recirculation (EGR) system in a car engine reduces nitrogen oxide (NOx) emissions by recirculating a portion of exhaust gases into the intake manifold. This lowers combustion temperature, improving efficiency and reducing pollution. EGR enhances fuel economy and is essential for emission control in modern vehicles. #EGRSystem #CarEmissions #FuelEfficiency #EnginePerformance #EcoFriendlyCars #EmissionControl #VehicleTechnology #AutomobileEngineering #SustainableDriving #CleanAir #c