At sea level, your car performs better than on a mountain

Altitude is a villain for engine performance, due to the lower amount of oxygen available in the atmosphere

You'll notice it when you go down the mountain (Photo: Peugeot | Disclosure)
By Boris Feldman
Published on 2026-01-08 at 07:00 AM

When you travel with your automobile and leave the coast for the mountainous region climbing 500 or more than a thousand meters, you may feel a lack of engine performance. Do you know why?

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The higher the altitude, the lower the amount of oxygen in the atmosphere, which impairs engine combustion. And this only does not happen in turbocharged engines, where oxygen is compressed into the cylinders, or in the electric car, because obviously there is no combustion at all.

How much is lost? About 1% of the power per 100 meters that is climbed. And the opposite is true. From the mountain to the beach, performance is gained.

Boris Feldman

Journalist and engineer with 50 years of experience in the automotive press. He led newspaper and television teams and hosts the AutoPapo program on radio stations throughout the country.

Boris Feldman
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