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Why Does Fuel Consumption Increase When Braking?

1 Answers

DelBrantley

07/29/25 4:07pm

When the speed of the vehicle changes, accelerating from low to high speed by pressing the accelerator pedal hard will lead to an increase in fuel consumption. Here are the related explanations: 1. From stationary to acceleration: A car requires a significant amount of energy to accelerate from a standstill, which essentially means burning more gasoline. This is especially more wasteful for automatic transmission cars because the automatic transmission has a reaction process, making power delivery slower. Compared to manual cars, achieving the same speed consumes more gasoline. 2. Air resistance: Air resistance is proportional to the square of the speed. This means that when the speed increases from 40 km/h to 80 km/h, air resistance increases accordingly, leading to higher fuel consumption.

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