Is it okay to drive at high speeds for more than 12 hours?

[VonGrant]

No. If a vehicle is driven continuously for more than 12 hours, problems may arise: 1. Cooling system issues: When the vehicle operates at high speeds for an extended period, it may lead to cooling system failures, resulting in inadequate heat dissipation. For example, the radiator may become clogged, or other cooling system malfunctions may occur. This is especially true for larger vehicles with aging components, which may even experience cylinder scoring and engine damage. 2. Engine oil leakage: During prolonged driving, the engine operates at high speeds for an extended period, which is a severe test. This can lead to oil leakage, abnormal oil consumption, and in severe cases, may even cause the vehicle to catch fire. 3. Reduced engine output: If the vehicle is driven continuously for a long time, the exhaust temperature will rise sharply, potentially triggering the ECU's overheating protection. This will affect the engine's output capability, significantly reducing the vehicle's performance.