For its Euro 4 and Euro 5 versions, the EE20 engine had a semi-closed block i.
For the Euro 6 EE20 engine, however, injection pressure was increased to 200 MPa.
EGR and DPF The EE20 diesel engine had a water-cooled exhaust gas recirculation EGR system which recirculated exhaust gases to the intake to lower combustion temperatures and reduce NOx emissions.