What Causes High-Speed Body Shaking?

[LeJosie]

Uneven brake disc surfaces with excessive radial runout. Overinflated tire pressure can cause significant shaking when driving at high speeds over uneven roads. Severe tire wear or large imbalances in wheel balancing. Engine issues, often caused by fuel quality or ignition problems. Here are the countermeasures: 1. Check tires: Inspect tire pressure before high-speed driving. It is recommended not to overinflate tires in summer; reduce pressure by 0.1-0.2bar if necessary. In winter, slightly increase pressure by 0.1-0.2bar, but avoid exceeding 2.7bar. 2. Wheel alignment: For cases of vehicle pulling or abnormal tire wear, perform a wheel alignment. Regular alignments help check if the vehicle's mechanisms are functioning properly. 3. Avoid low-quality oil: Refuel at reputable gas stations and avoid using substandard oil or fuel, which can damage the engine's fuel and lubrication systems. Adding a cleaning-type fuel additive to the tank can also help remove carbon deposits.