Insufficient air pressure will increase the friction between the tire and the ground and increase fuel consumption, so check the tire air pressure frequently. Different models and tires have different air pressure standards. In addition, serious tire wear will slip and increase fuel consumption. Replace the tire if necessary.

2, pay attention to regularly check the braking system.

Some cars will have a slight drag brake, including the hand brake, which is equivalent to increasing the load and fuel consumption of the car when driving, so it is necessary to check it regularly.

3, regular maintenance, replacement of three filters

Air filter, gasoline filter, oil filter, etc. It needs to be replaced every 5000 kilometers or more, because air filter blockage will reduce the gas volume, resulting in insufficient gasoline combustion and lower fuel efficiency.

Step 4 reduce the load

Minimize the unnecessary sundries in the trunk.

Fuel saving skills in driving

1, light refueling, light braking, early braking.

Braking hard, starting hard and stepping on the accelerator are all taboos to save fuel. Under the premise of ensuring the normal running of the car, the throttle range is appropriately reduced. When you see a red light coming on or going in or out of expressway, you can slow down by lightly stepping on the brakes in advance, and skillfully use the remaining power of the engine to make the vehicle slide forward.

2. Accelerate after preheating.

Running the engine at low temperature costs more oil than running after heating up, so don't accelerate at first, slow down for a few minutes and let the engine warm up before accelerating.

3, shift timing and gear selection

The shift timing should be between 2500 and 3000 rpm as far as possible, so that better economy can be achieved on the premise of ensuring power supply. We should put an end to low speed or high speed.

4. Master the economic speed of the vehicle.

Economic speed refers to the most fuel-efficient driving speed. The economic speed of various models is different, which will be around 70-90 km/h. Below or above this speed, the fuel consumption will increase.

5, rational use of air conditioning

When the temperature is appropriate, when the speed is lower than 60 kilometers per hour, the air conditioner can be ventilated without opening the window, or only the ventilation function of the air conditioner can be used without its refrigeration function, so that the air conditioner compressor will not start, thus saving fuel. However, it is not recommended to open the window for ventilation when the speed is higher than 90 kilometers per hour, because the air resistance is very high at this time, and it is more fuel-efficient to turn on the air conditioner.

6. Pay attention to the running-in period of the new car.

Whether the driving method during the running-in period is correct or not has a great influence on the fuel economy of the engine in the future. Therefore, we must keep in mind the driving principle of the new car during the running-in period, with the speed not exceeding 80 kilometers per hour and the rotation speed not exceeding 4000 rpm. Never break the rules.

Several misunderstandings that need to be corrected

1, neutral can save fuel.

The early carburetor car can save fuel by hanging neutral, but the current EFI car can't. Because some cars loosen the throttle when accelerating, the fuel injection system stops supplying oil. When the engine speed drops to 2000 rpm, the fuel injection car will save fuel when taxiing with gears at high speed, but it will consume fuel when idling.

2. Idle for a long time

The fuel-saving test proves that the fuel consumption of the engine idling for 3 minutes can make the car run 1 km. Therefore, if the stay time exceeds 1 min, it will be closed. However, the fuel consumption of restarting is often 20% more than that of normal driving, and short-term parking should choose idle speed.

The higher the octane number of gasoline, the better.

Gasoline suitable for various types of cars is generally indicated in the manual. Nowadays, many car owners often think that the better the oil, the better the car, but it is not. Using engine oil with higher quality than the vehicle itself is not only expensive, but also has a negative impact on the engine.