Aluminum alloy with a 16-valve pent-roof combustion chamber.
Before diving into bolt torques and compression ratios, it is important to understand the context. The Hyundai Theta II engine, introduced in 2008, replaced the original Theta engine. It is a 2.0-liter or 2.4-liter four-cylinder gasoline engine used globally in Hyundai, Kia, and even Genesis vehicles. Hyundai Theta 2 Engine Specification.pdf
The Hyundai Theta 2 engine features several advanced technologies that enhance its performance, efficiency, and reliability. Some of the notable features include: Aluminum alloy with a 16-valve pent-roof combustion chamber
5W-20 / 5W-30 (NA) or 5W-30 / 5W-40 (Turbocharged). introduced in 2008