Exhaust gas recirculation is a technique used to reduce nitrogen oxide emissions in both petrol and diesel engines. These 'EGR' systems are used in conjunction with other emissions control devices, ...

EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that does as the name implies: recirculate exhaust gas back into the engine’s intake manifold for a return trip to the ...

We earn commissions from purchases you make using links in our articles. Learn more. Despite recent advancements in environmentally conscious electrified vehicles, most of the cars and trucks we drive ...

Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...