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Topic: Vehicle mechanics and maintenance · Nº 145 / 539

Question picture

Si la presión de inflado en los neumáticos es inferior a la recomendada, ¿aumenta el consumo de combustible?

If the tyre pressure is lower than recommended, does fuel consumption increase?

  • ASí, porque existe mayor rozamiento con el pavimento.Yes, because there is more friction with the road surface.
  • BSí, y además el desgaste es mayor en el centro de la banda de rodamiento.Yes, and wear is also greater in the centre of the tread.
  • CNo, siempre que estén compensadas las presiones entre todos los neumáticos del vehículo.No, as long as the pressures are equal in all the vehicle's tyres.
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Correct answer

  • ASí, porque existe mayor rozamiento con el pavimento.Yes, because there is more friction with the road surface.
Explanation

With less pressure the tyre flattens, the contact area and friction with the road surface increase, and the engine uses more fuel. Also, the wear is concentrated at the edges of the tread, not in the centre.

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