Why Can't Turbocharged Cars Go to High Altitudes?
3 Answers
Turbocharged cars can indeed go to high altitudes, and they are actually more suitable for high-altitude climates. Whether in terms of performance or fuel consumption, they perform significantly better than in plains. Turbocharged models are essentially designed specifically for high-altitude conditions. In Tibet, turbocharged models won't experience the "altitude sickness" typical of naturally aspirated engines, with no power reduction—only enhancement effects. Turbocharged engines were originally invented for aircraft installation because the higher the altitude, the thinner the air becomes. This technology solves the issue of insufficient power caused by thin air at altitudes of 10,000 meters. Turbocharging relies on external force to forcibly increase air pressure, delivering more air into the combustion chamber.
I have always been passionate about studying automotive mechanical principles. The key reason why turbocharged cars struggle at high altitudes lies in the thin air and low oxygen levels. Turbochargers work by compressing air to supply more oxygen to the engine, enhancing combustion and boosting power. However, at high altitudes, the atmospheric pressure drops, and air density decreases, making it difficult for the turbo to intake and compress sufficient air, leading to engine oxygen deficiency. This can cause severe power loss, more noticeable turbo lag, and sluggish acceleration, as if the car has been drained of its strength. Over time, the turbocharger may overheat or damage other components. Although some modern turbocharged cars have optimized designs, it’s advisable to check the turbo system and air filter before driving in high-altitude areas. Maintain a steady speed while driving and avoid sudden acceleration or steep climbs. If you frequently drive in high-altitude regions, consider a naturally aspirated engine car for greater reliability—after all, safety comes first, and insufficient power in mountainous areas can be dangerous.
Last time I drove to the plateau for a trip, the experience was really unsatisfactory. I was using my turbocharged car, and when climbing to high-altitude sections, the engine wheezed and gasped. Even with the accelerator pedal floored, there was no power response—it felt like the car was on strike. Later, I figured it out: the air on the plateau is extremely thin, so the turbo couldn’t suck in enough air to boost pressure, drastically reducing the engine’s combustion efficiency. Overtaking on mountain roads was nerve-wracking, as I was constantly worried about insufficient power causing an accident. That lesson was profound. I later concluded: when driving on plateaus, you must plan your route in advance, try to avoid areas that are too high in altitude, or opt for a naturally aspirated model instead. Turbocharged cars are fine for daily use, but in high-altitude environments, they really fall short. Regular maintenance is also essential to ensure the oil and filters are functioning properly, avoiding additional failures.
