What type of engine oil is suitable for Jetta VS7?
1 Answers
The original engine oil is the recommended choice for Jetta VS7, with a viscosity grade of 5W-40. In terms of compatibility, the original oil is well-suited for the engine. However, depending on specific needs, other engine oils may offer additional benefits such as noise reduction, fuel efficiency, or enhanced performance. Therefore, brands like Mobil, Shell, and Castrol can also be considered. The viscosity of engine oil changes with temperature, so it's crucial to pay attention to its performance under both low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity, where 5W means it can withstand temperatures as low as -30°C. A smaller number indicates better low-temperature fluidity, ensuring smoother cold starts for the vehicle. The second number represents the oil's kinematic viscosity at 100°C, with higher values indicating better viscosity retention at high temperatures, which can be interpreted as superior lubrication performance under high-temperature conditions. When selecting engine oil, consider the following points: Choose engine oil based on the engine's requirements. It's unnecessary to use overly advanced oil in engines with lower requirements, and similarly, lower-grade oil should not be used in engines with higher demands. Multi-grade oils are preferable due to their cost-effectiveness, longevity, and efficiency, providing better protection for the engine. Due to the nature of multi-grade oils, they may appear darker prematurely and exhibit lower oil pressure compared to conventional oils, both of which are normal phenomena.
