What is the difference between CSS engine and EA211 engine?

[VonSamuel]

The differences between the two engines are as follows: 1. CSS is a strategy to reduce engine costs, allowing engine platforms of different displacements to share more component assemblies. This engine features cylinder deactivation technology, a four-cylinder design, and adopts leading technologies such as 16 valves, direct fuel injection, and variable valve lift. It also uses lightweight materials like an all-aluminum cylinder head, cylinder block, and plastic oil pan. 2. The EA211 engine employs an all-aluminum cylinder block, making the overall engine weight lighter. On this basis, technicians have added an ACT active cylinder management system, which can shut down two cylinders under certain conditions, allowing the engine to run on the remaining two cylinders. 3. As for engine performance, it ultimately depends on the final calibration and the matching of various components. It is not appropriate to simply compare which one is better, as both engines are currently mainstream direct-injection turbocharged models.