5 Taboos for Turbocharged Cars: Key Points to Remember

Avoid Flooring the Accelerator at Startup

Turbochargers rely on engine oil for cooling, and during cold starts, the oil’s flowability is poor. If the turbocharger operates at high speeds during this time, it can experience significant wear. It is advisable to let the engine idle for two to three minutes until the oil can provide sufficient lubrication before revving the engine, thereby extending the lifespan of the turbocharger. This is particularly important in winter.

Avoid Engine Braking in Manual Turbocharged Cars

Engine braking refers to using a higher gear than necessary while driving. Forcing a higher gear during uphill climbs or at low speeds when high torque is required can cause engine damage, spark plug failure, and other severe issues.

Avoid Excessive Idling

Many car owners tend to keep the engine running while waiting for someone, unaware that prolonged idling leads to low engine and turbocharger speeds. This can result in oil leakage from the turbocharger and compressor due to lower gas pressure compared to the bearing pressure. Inadequate lubrication and cooling of the bearings occur, and oil may enter the cylinders, affecting the engine’s normal operation. Therefore, it is crucial to avoid excessive idling.

Allow Cool-Down Time After High-Speed Driving

When the engine is running, some of the oil is supplied for lubricating and cooling the turbocharger’s rotor bearings. If the engine is abruptly shut down after high-speed driving, the oil pressure rapidly drops to zero, interrupting oil lubrication. The heat inside the turbo cannot be dissipated by the oil, causing the high temperature in the turbine section to transfer to the center. The heat in the bearing housing cannot be quickly dissipated while the turbocharger rotor continues to rotate at high speed due to inertia.

Use Recommended High-Quality Engine Oil

Turbochargers typically rotate at speeds exceeding 150,000 revolutions per minute. Most production cars use floating bearings that rely entirely on lubricating oil for lubrication. Therefore, choosing high-quality engine oil is crucial. It is generally recommended to use the manufacturer’s specified or higher-quality fully synthetic oil. Synthetic oil offers three times the stability of regular mineral oil, maintaining stable lubrication even under high temperatures and engine high-speed conditions. It provides excellent lubrication for the turbocharger and engine, reducing friction and wear.

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