According to many experts in the automotive industry, this is a subjective, emotional, and unsupported thought.
The reason is that in reality, there is no general rule that applies to all types of cars, related to speed, in order to optimize fuel efficiency. Each car model will have its own technical specifications and they are completely different from each other. Therefore, the speed to optimize fuel consumption is also different.
In addition, when driving too slowly, the engine will usually rotate at a low rpm, oscillating between 1,000 – 3,000 rpm. At this time, the car will run at a low gear, and the speed of engine rotation per kilometer will be higher. This causes the engine to burn more fuel to meet each rotation cycle.
However, if you move at a high speed, the advantage is that the car will shift to a higher gear, but still maintain the engine speed within the range of 1,000 – 3,000 rpm. In theory, this will help reduce fuel consumption. However, when the car moves at a higher speed, another issue will arise, which affects the fuel consumption rate. That is the air resistance.
When the car moves fast, the air resistance will also increase significantly. At this time, the engine will have to work harder to overcome the resistance. Therefore, the fuel consumption rate will also increase, depending on the type of car and its aerodynamic index.
Because it depends on many factors, it is difficult to assert whether driving fast or slow will help save fuel. This also means that driving slowly does not necessarily help drivers save fuel.
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Tips to save fuel
In addition to the model, type of the car, driving the vehicle correctly and skillfully will help drivers save a considerable amount of money. Therefore, instead of trying to drive slowly, there are still many other “tips” to optimize fuel consumption.
Firstly, it is about calculating and choosing a convenient route each time you travel. In particular, in major cities like Hanoi and Ho Chi Minh City, traffic congestion often occurs. If you travel by car, drivers should choose the shortest route with less congestion. This will help the car consume less fuel.
In addition, drivers should consider and remove unnecessary goods and items from the car. The reason is that keeping many unnecessary items, goods that are not used in the car will make the weight of the vehicle heavier. When driving… the car will require more energy from the engine to operate, resulting in higher fuel consumption.
When driving in the city, drivers should pay attention and observe if there is a traffic light or a lot of vehicles ahead. Drivers should estimate the distance to maintain a steady speed, avoiding the situation of stopping abruptly and then having to step on the accelerator to regain momentum.
According to VTC news
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