How fuel efficient is the speed or rpm of the car?

At present, domestic oil prices are still running at a high level, and refueling has become the largest part of the cost of using a car. I went to the forum posts of various models, and found that everyone invariably asked a question: how fast is my car most fuel-efficient?

The first is displacement, and the power reserve of a large displacement engine is often reflected at high speeds. The turbocharged engine delivers maximum torque at 1,500-2,000 rpm and the naturally aspirated engine delivers 80% of the maximum torque at 2,000-2,500 rpm. Based on the output of engine power and torque, it is generally considered that the engine at the above speed is the most fuel-efficient.

The second is wind resistance, according to research, after the car reaches 80km h, 60% of the power is to overcome wind resistance. The faster the car, the greater the wind resistance while it is moving. The following is a forum that brings together various models and gets the most fuel-efficient speed from the actual use of cars by many netizens, for reference only.

1. Turbocharged engine. The vehicle gearbox is in the highest gear, the engine speed is 1500-1700 rpm, considering the upwind resistance, then according to the different displacement, its most fuel-efficient speed is as follows0t displacement, speed of 60-70km per hour is the most fuel-efficient

Displacement, 70-80km per hour is the most fuel-efficientDisplacement, the speed of 80-90km per hour is the most fuel-efficientDisplacement, 90-100km per hour is the most fuel-efficient.

It varies from car to car, generally speaking, the car is driving at high speeds, and the speed of 80 per hour is the most fuel-efficient.

The most fuel-efficient engine speed of gasoline vehicles is about 2000 rpm, and the speed is between 60-80: 1. Control the best speed, the engine speed of the general EFI car is about 2200, no matter which gear it is, keep the engine speed at about 2200. The car can not move at too low speed, does not consume fuel and does not walk the road, and also hurts the engine, and the high speed increases the ineffective fuel consumption, which also hurts the engine; 2. The most fuel-efficient driving state is to drive in a straight line at a constant speed, the most fuel-efficient vehicle with a small displacement is 60 80 kilometers per hour, and the medium displacement vehicle is 80-100 kilometers per hour; 3. Control the shift speed of about 2500, if the gear is lower than 2000 rpm, the speed will drop after the shift, there is a feeling of being out of gear, and you have to refuel to get it back, but it will consume more fuel; 4. When the car is driving, remember not to change the lane as much as possible, do not overtake, and maintain medium speed and uniform speed to drive safely and fuel-saving; 5. When you need to stop, you should collect the oil in advance, slide and slow down with gear, instead of rushing to the front and braking hard, the brake actually consumes precious gasoline, and the harder the brake, the more wasted.

In fact, the economic speed of the vehicle has a lot to do with the displacement of our vehicle. Therefore, the specific model needs to be specifically analyzed.

1. Displacement and below.

Nowadays, many cars are pursuing small displacement engines, because small displacement engines are relatively fuel-efficient. However, the economic speed of small displacement engines is relatively low, and the most fuel-efficient speed is generally 50-60km/h. But for this speed, many people say that it is too slow and not suitable for our normal driving.

But for people who commute to work in the city, they often get stuck in traffic and stop and go, even if there is no traffic jam, normal driving will not be fast, and it is still more fuel-efficient than large-displacement cars.

Second, between. The engine between the > is the most used by our household scooter, and at present, these two engines are the most used in our people's home scooters. The economic speed in this displacement range is generally 70-80 km/h. Therefore, many people say that 80kmh is the most fuel-efficient speed, and this is true.

After all, our people's cars are generally within this range.

3. Displacement. The displacement of the > is relatively high compared to the displacement of the engine, so its economic speed will be relatively high. The economic speed of the engine with displacement is generally about 120 km per hour. Therefore, this kind of large-displacement engine is very suitable for running at high speed or long distance, which is why we often hear that some large-displacement engines have higher fuel consumption when driving at low speeds, and are particularly fuel-efficient when running at high speeds.

The displacement of our family cars is generally around, so the economic speed of the vehicle is generally around 70-80km/h. Some people may say that we are driving in urban areas, which is more congested, and it is impossible to reach a speed of 70-80km/h, which is very fuel-intensive. Yes, indeed, but we should also pay attention to driving habits when we usually drive, and good driving habits will also reduce the fuel consumption of our vehicles.

If you drive in urban areas, high gears and low speeds, it will lead to insufficient fuel combustion, the engine is prone to carbon deposits, and if the speed is too high, the intake speed will also increase the intake resistance, and fuel consumption will also rise. Therefore, we had better maintain the speed of the car, do not change lanes frequently, and do not brake on the brakes and accelerator on the accelerator, because this will cause the speed to change too much, it is easy to cause the fuel consumption of the vehicle to rise, and driving at a constant speed is the most fuel-efficient.

Speeds between 80 and 100 are more fuel-efficient. If that's why it's more fuel-efficient at high speeds. If you want to stop and go on city roads, wait for a red light. If it's crowded, it's more fuel-intensive.

Each car has its own economic speed, the following is the information about the speed of the car:,1, according to the law of conservation of energy, the less fuel consumed, then the less workmanship, the same applies in the automotive industry, the most economical fuel consumption state, the power is weak, of course, the speed will not be too fast. Therefore, the most economical fuel consumption has to be analyzed from the low-speed situation.

2. At present, there are two types of mainstream engines in China. One is a small-displacement turbocharged engine, which is represented, and the other is a naturally aspirated engine with a larger volume. Both engines have their own different economic speeds.

3. Take the manual model as an example, of course, Lao Sen needs to hang in the highest gear, in the case of ensuring that there is no frustration and shaking, try to reduce his speed, and then step on the accelerator when the engine begins to shake, and the speed after making up the throttle is the economic speed. For example, if a car is in fifth gear, and the engine shakes slightly at 1400 rpm, indicating that the gear needs to be lowered, then we step on the accelerator and the speed does not shake when it reaches 1600 rpm. Then for this car, the economic speed is 1600 rpm.

The same goes for most manual transmission models. 4. To some extent, in the case of ensuring that the engine does not shake and frustrate, the high-end low speed is the most fuel-efficient, if there is a constant speed cruise, then the car travels a certain distance, the comprehensive fuel consumption is lower than the official fuel consumption.

<> the engine speed of the car is about 2200-2500 rpm, which is the most fuel-efficient. No matter what gear it is in, keep the engine at about 2200-2500 leakage. The car at too low speed can't walk, consumes fuel and doesn't walk the aisle, and it also hurts the engine; Excessive rpm increases ineffective fuel consumption and also hurts the engine.

The safe, fuel-efficient way to drive is to drive in a straight line at a constant speed. The most fuel-efficient low-displacement vehicles are 60 to 80 kilometers per small dust cover, and the medium-duty vehicles are 80 to 100 kilometers; Try to control the shift speed and active gear, start as low as possible when starting, slowly press the accelerator pedal, and slow back to the brother and slow acceleration; Raise the throttle as high as possible to save fuel and minimize braking. Because braking consumes energy, you should increase the throttle in advance when going downhill through an intersection.

The most fuel-efficient engine speed of gasoline cavity spike car is about 2000 rpm, and the speed is between 60-80: 1. Control the best speed, the engine speed of the general electric injection car is about 2200, no matter which gear it is, keep the engine speed at about 2200. The car can not move at too low speed, does not consume fuel and does not walk the road, and also hurts the engine, and the high speed increases the ineffective fuel consumption, which also hurts the engine;

2. The most fuel-efficient driving state is to drive in a straight line at a constant speed, the most fuel-efficient vehicle with a small displacement is 60 80 kilometers per hour, and the medium displacement vehicle is 80-100 kilometers per hour;

3. Control the shift speed of about 2500, if the gear is lower than 2000 rpm, the speed will decrease after the shift, there is a feeling of being out of gear, and you have to refuel to find it back, but it will consume more fuel;

4. When the car is driving, remember not to change the lane as much as possible, not to overtake, to maintain a medium speed, uniform speed, safe and fuel-saving;

5. When you need to stop, you should collect the oil in advance, slide and slow down with gear, instead of rushing to the front and braking hard, the brake actually consumes precious gasoline, and the harder the brake, the more wasted.

Millions of car purchase subsidies.

The speed and fuel economy of the vehicle need to be divided into the following situations

Cars with a displacement of less than are generally better fuel-efficient, but the economic speed of such cars is actually very, very low, generally at 50-60km/h. The displacement is in between, this type of displacement is mostly found in private cars, and the economic speed of this displacement is generally 70-80km/h which is very fuel-efficient.

Displacement in, this type of car emissions compared with the first two categories is relatively high, the same reason its economic speed will be higher, the most fuel-efficient speed reached 120km h, so this kind of car is suitable for long-term driving on the highway.

The most fuel-efficient driving state is to drive in a straight line at a constant speed, the most fuel-efficient speed is 60 80 kilometers per hour for small displacement vehicles, and 80-100 kilometers for medium displacement vehicles. When changing gears, you need to add a little more fuel than you normally would, so that the revs are expressed to a little more than 2500. If you change gears below 2000 rpm, the speed will drop after shifting, and you will have to refuel to get it back, but you will consume more fuel.

Speed

Velocity is an expression of velocity that refers to the total distance traveled by an object in 1 hour, measured in kilometers (kilometers) or miles (mph).

Speed is commonly used in transportation, but it is not the standard unit of speed in the International System of Units.