Driving costs oil because you have made these mistakes.
The warm-up time is too long.
For vehicles equipped with EFI engine, it is not necessary to warm up the vehicle. However, when driving directly without a hot car, please don't slam on the accelerator and keep the speed at around 1500-2000 rpm. On the one hand, the use of vehicles in this way can reduce the waste of fuel, on the other hand, it can also accelerate the temperature rise of the engine under part load, and achieve better "hot car" effect.
Do not turn off the engine when idling for a long time.
Compared with the normal driving state, when the car is idling or just starting, the ECU of the engine controls to spray more oil. If the car is idling for a long time, the engine is not turned off and the fire is not frequently struck, the fuel consumption is bound to increase.
Second gear starting
Many people like to start in the second gear when driving, because many old drivers tell you that the second gear starts fast, but in fact, it consumes a lot of oil and will also lead to the wear and tear of your gearbox, so you must use the first gear when driving.
Low-speed overtaking
Many people are used to speeding down and overtaking. This technology is understood by both old and new drivers who have seen racing movies or videos. As soon as you get into gear, the car will rush forward with the roar of the engine. In fact, this is very fuel-intensive. Actually, we don't need to change gears when overtaking. First, it is not safe. Second, cars will consume more fuel. So when overtaking, we just need to step on the accelerator a little and overtake safely.
Step on the accelerator for a long time.
The current gearbox, as long as it is not a CVT model, actually has gears, and when the vehicle is shifting gears, you keep refueling, which may cause frustration and fuel consumption. The real fuel-efficient driving method is to accelerate to a certain extent, let it slide for a period of time, and give oil at slow intervals, which is the most fuel-efficient.
Neutral taxiing
When the car is in neutral, there is no power at all, and then it will walk by the slope force of downhill. At this time, let alone whether sliding in neutral will damage the gearbox. When shifting from N gear to D gear, the gear is re-engaged and the power is re-connected. This process actually consumes extra energy of the vehicle. At this time, the fuel consumption will increase, but it will not decrease, so you must not slide in neutral when going downhill.
The tank is full.
If you refuel the fuel tank frequently, the service life of the fuel tank will be shortened if you encounter high temperature in summer, and the gasoline will volatilize more and the fuel tank pressure will increase. And filling up with oil will also increase the weight and fuel consumption to a certain extent.
Windows open at high speed.
Window opening is for ventilation, but if you do this when driving on the expressway, it will directly lead to the increase of vehicle driving resistance, affect safety and increase fuel consumption.
Incorrect tire pressure
If the tire pressure is lower than the standard pressure, it will directly increase the rolling resistance of the tire and increase fuel consumption. If the air pressure of the left and right tires is unbalanced, the friction and lateral steering resistance will increase accordingly, thus increasing fuel consumption.
Tire pattern difference
Tire tread patterns can be roughly divided into three categories: off-road type, sports type and comfort type. Cross-country tires have large patterns, which are suitable for driving under harsh road conditions such as gravel and have the highest fuel consumption; Sports tires generally have strong grip, wide tread, easy handling and moderate fuel consumption; Comfortable tires have the lowest fuel consumption because of their delicate and smooth patterns.
Frequent braking
Driving in the city often encounters traffic jams. If the speed and the distance from the preceding vehicle are not well controlled, frequent braking and oil supply interruption will also increase fuel consumption.
Always driving at high speed
Every car has an economical speed, which is the most fuel efficient. Below or above this speed, fuel consumption will rise sharply.
The shift timing is not accurate.
Too early or too late shift timing will increase fuel consumption. Generally, when the engine speed is 2000-3000 rpm, the engine is the most fuel-efficient and has less wear.
Short distance driving
After the engine is started, it takes a long time for all parts to reach the best working condition. If you drive a short distance frequently, the parts will always be in poor working condition, and the wear and tear will increase, and the fuel consumption will also increase.
Too much or too little oil.
Too much engine oil may participate in combustion, resulting in incomplete combustion of mixed gas, carbon accumulation in spark plugs, silencers and other parts, slow growth, decreased power and increased fuel consumption. Too little oil will cause dry friction between parts, make the engine overheat, reduce power and increase fuel consumption.
"Three Filters" were not replaced in time.
If the "three filters" are not replaced for a long time, there will be more dirt inside, which will affect the use. There is a big error in the data transmitted to the engine ECU, which leads to insufficient combustion of mixed gas, increased carbon deposition of the engine and increased fuel consumption.
Too much or too little coolant
When the engine works normally, the coolant temperature is 80~90℃, but when the coolant is insufficient, it is easy to cause the engine temperature to rise rapidly. When the coolant temperature exceeds 95℃, the oil consumption will increase by 30%~40% compared with that at normal temperature, which will easily cause parts to wear or even damage.
The temperature control switch or thermostat is damaged.
Once the temperature control switch or thermostat fails, it will lead to the increase of coolant temperature in the water tank, poor heat dissipation and poor working conditions of parts, which will directly lead to an increase in fuel consumption.
Spark plug carbon deposit
If the carbon deposition of spark plug increases or ages, it will lead to the decrease of ignition energy and ignition stability, which will lead to the increase of fuel consumption. It is suggested that urban car users should clean it every 20-30 thousand kilometers and replace it regularly according to the different spark plug materials.
Air intake system cleaning
The cleanliness of the car is directly related to the working condition of the engine, thus affecting the fuel consumption. Everyone should pay special attention to the air filter and throttle. Generally, it is recommended to replace the air filter once every 10000 km in the north and once every 15000 km in the south. When the condition is 5000 kilometers, compressed air can be used to blow the air filter in the opposite direction.
Throttle experts suggest cleaning every 20-30 thousand kilometers. There is also an air flow meter that affects fuel consumption. Its accuracy is related to the accuracy of engine air-fuel ratio. If there is a problem, it will inevitably lead to an increase in fuel consumption. If the flowmeter is found damaged, it must be replaced.
Replace mechanical filter and steam filter.
Many car owners will neglect to change the machine filter and steam filter regularly. Many car owners can guarantee to replace the machine filter when changing the oil, but the steam filter is ignored by many car owners. When the steam filter becomes dirty, it will provide an error signal to the control unit, resulting in an increase in fuel consumption. It is recommended to replace two filters regularly.
four wheel alignment
If the four wheels of the vehicle are not properly positioned (toe angle and inclination angle are incorrect), the friction between the tire and the ground will increase, which will not only damage the tire itself, but also increase fuel consumption.