The car is composed of thousands of components，Therefore, in the car、Car maintenance、Repair the car，Even the new car will have some ambiguous information to confuse new and old car owners。This information is either completely wrong，Either it is not rigorous enough, too one -sided，This is also a question that many car owners ask。

But pay attention to reducing carbon deposits for many years，You have to use fuel treasures all year round，Promote the cost height。Since the burning of gasoline will not save the car fuel，So fuel fuel saving is wrong。

Another，The choice of car fuel treasure is very important，Be sure to choose a brand with quality assurance (better manufacturer produced)。If you use inferior fuel treasure，Not only does the burning in the cylinder not improved, but it is counterproductive，In severe cases, it will also destroy problems with ternary catalysts。

Simply speaking with variable air -conditioning pumps, it is simply increased (reduced) compression ratio (variable) as needed at work and needs to be slowly increased (reduced)，to reduce the interference caused by the periodic clutch of the compressor (consumed engine power) at the same time to reduce noise，variable air -conditioning pumps will control the displacement of the air conditioning pump according to the temperature to reduce fuel consumption。

So cars using a fixed displacement air -conditioning pump，Regardless of manual air conditioning or automatic air conditioning, adjust the refrigeration volume (temperature level)，In fact, it is just a technology content that is not much of the size of the wind door (temperature control switch).，You only need to turn on the fuel consumption of the air -conditioned fuel consumption.、The air volume has nothing to do with the amount of air (as to why the increase in air volume idle increases，You can ask the generator)。

Although the higher the oil label, the better the performance (the oil label indicates the low temperature liquidity of the oil、High temperature resistance, etc.，Quality level indicates that motor oil is fully synthetic、Semi -firing Machine Oil)，But for ordinary engines or older cars，Machine oil with high labels is not necessarily a good thing，The engine of the old car is large due to the large wear (while some low -end cars are the cylinder gaps in the manufacturing process itself is relatively large)，So the use of full synthetic engine oil may cause channeling oil，Oil oil、Excessive carbon accumulation，So only choose the right when choosing oil，No need to choose a high label oil at all。

When designing, the manufacturer will also take into account the rear situation of the hatchback，Generally, the ability of the back to withstand the impact。Currently the rear of all the hatchbacks，There are a certain collision deformation area design，Enough to absorb the impact energy generated by collisions。Of course, the safety of the racket car is mainly depending on the manufacturer of the car、Automobile's development platform、material application, etc.。So the hatchback and sedan not exist are the safer question，This problem only exists in the difference between the development platform and the brand，To put it plainly, it is the manufacturing process、Manufacturing materials、Differences in brand technology, etc.。

Second, after adding the sunroof，Cars need to do a series of security tests，Including long -term use of vibration fatigue tests of the roof、Rolling and roof pressure test、Noise in the car、The influence of the body temperature and the influence of the occupant protection system during the collision。In addition to these beams，Whether it's a metal roof，The roof of the panoramic sunroof is just a layer of car skin，It has little effect on the overall passive safety。When an accident occurs in a car，Sky window glass will crush small pieces to protect the person in the car，At this time, there is one more escape exit。Comprehensive above，Automotive sunroof is safe。

Explosion -proof tires can be simply understood as strengthening the thickness of the tire wall，It can support the weight of the car and drive at a considerable speed when it is discouraged。So explosion -proof tires still explode tire，Ordinary tires will lose control of cars when the tire burst，If the speed exceeds 160km/h, the mortality rate reaches 100%(Note: use the brakes at the moment of the tire burst)。

It is no different from ordinary tires at the moment when the tire bursts occur，Because all the weights will be concentrated on the tire side cars when the tire burst will be briefly out of control，Just hurry up the steering wheel pine throttle，Explosion seabet io-proof tires will support the car with very tough and supportive tire walls，Make the car restore control，Therefore, explosion -proof tires can also explode just to be controlled when the tire is exploded，This is enough for the tire。

So considering the safety of car skin, it seems that car safety seems to be too playful，Disadvantage of the main car passive safety of the car、The transmission route of the rigidity and force of the frame。But it is not enough to have high -strength materials alone，The force that people can bear when the car collides is limited，Even if the material with the highest hardness is used, if the human body is beyond the tolerance, it is still useless，So the impact power is scattered (and absorbed)，It is also a very important section in the safety of automobiles。

The engine power with T is often higher than the power of naturally inhaled，For example, the power of the engine of 1.8T is about equivalent to 2.2L naturally aspirated engine，The 1.8T engine is obviously more fuel than the 2.2L naturally aspirated engine under the same load.，Moreover, the turbocharged engine is becoming more mature，The speed of turbine intervention is getting lower and lower，Interventional delay is getting smaller and smaller，The phenomenon of burning oil is becoming increasingly not obvious，The service life is getting longer and longer，Therefore, the opportunity of upgrading the turbocharging of the car technology is getting more and more fuel -saving instead of fuel。

In fact, there may be slight shaking in the normal parking，That's because the parking paw and card slot of the P gear、There is a gap between other transmission seabet mycomponents。(When the vehicle is stopped, the P is not available) The current car control program is very good，Some cars when decelerating parking，The control unit of the car starts to perform operations according to the program，The transmission should be immediately responding when the owner stops or continues to drive。Among them, the transmission of the dual -clutch is particularly prominent，greatly reduces shift shocks and shift time，So there is no need to hang n gear first，Cross Porrise，P gear is a gear designed for parking。

The fact is that the input shaft runs with the sun wheels with the sun wheels，Drive the planet rotation at the same time，Planet wheels drive the gear rotation，But because neither is in the empty gear and the planetary shelf，The input input is not passed on to the output shaft，Then the speed regulator will not send the speed signal to the transmission oil pump (will not interrupt the pump oil)，and the oil pump lies in the back of the torque converter，That is to say, the oil pump is always working，At least the transmission will always remain in a basic pressure。

The question is whether this basic pressure can meet the lubrication and heat dissipation of the gearbox。The transmission oil pump energy pump oil is pressure，So I don’t say to many people，In the short distance transmission, there will be no lubrication and cause damage。(Some automatic high -end high -end car trailers are limited to 50 kilometers)

Of course, it is not recommended that you hang out of gliding when going downhill，Not the problem of damage to the transmission，but the problem of personal safety。Because the empty gear is lost during the downhill, the effect of braking brings to the engine (some car with traction control system)，Speed ​​will become faster and faster，If an emergency occurs at this time，Unimaginable consequences。(The content of the article comes from the Internet，If you involve the copyright, please contact delete)