Which type of engine oil is suitable for the new Jetta?

[DiIsabella]

Volkswagen New Jetta users are recommended to use original specification engine oil SG-5W-40. Engine oil is a crucial factor affecting engine performance and service life. The Jetta comes factory-filled with high-quality multi-grade viscosity oil, which can be used year-round except in extremely cold climates. Here's an introduction to engine oil specifications: 1. There are 4 types of summer oils, 6 types of winter oils, and 16 types of all-season oils. Summer oil grades are: 20, 30, 40, 50, 60 - the larger the number, the higher the viscosity and maximum applicable temperature. 2. Winter oil grades are: 0W, 5W, 10W, 15W, 20W, 25W. The 'W' stands for Winter, and the smaller the number before W, the lower the low-temperature viscosity (better fluidity in cold weather) and the lower the minimum applicable temperature.