How much engine oil should be added to a Jetta car?

[DiSawyer]

Jetta cars require approximately 4 liters of engine oil. Engine oil, also known as engine lubricant, serves multiple functions including lubrication and wear reduction, auxiliary cooling, sealing to prevent leaks, rust and corrosion prevention, and shock absorption. Taking the 2019 Jetta VS5 as an example, its body dimensions are: length 4419mm, width 1841mm, height 1616mm, with a wheelbase of 2630mm and a fuel tank capacity of 51 liters. The 2019 Jetta VS5 is equipped with a 1.4T turbocharged engine, delivering a maximum power of 110kW and a maximum torque of 250Nm, paired with a 5-speed manual transmission.