Is 0W20 Engine Oil Underpowered at High Speeds?

[Barnes]

High-speed underperformance is not necessarily caused by using 0W20 engine oil. Below are relevant explanations regarding high-speed underperformance: Explanation: Vehicle underperformance at high speeds has little to do with the engine oil grade. For Japanese cars, using 0W20 engine oil should not result in high-speed underperformance, as the majority of Japanese vehicles use 0W20 oil. A small number of models use 30-viscosity oil, such as the Nissan X-Trail and the 4.0L version of the Nissan Patrol. Differences Between Japanese and German Cars: Japanese cars cannot use 40-viscosity engine oil, with three exceptions: older vehicles (i.e., aged cars), performance vehicles, and vehicles experiencing oil consumption. For German cars, using 0W20 engine oil might lead to high-speed underperformance, as German vehicles generally recommend using 40-viscosity engine oil.