Some questions about car maintenance

Transmission oil is the role of lubrication, cooling and power transmission, but different decided three main gearbox structure they need lubrication in different ways, thus determines the transmission they require the use of different properties of oil. Manual transmission gear oil: oil is usually manual gearbox oil said, only lubrication. USA Petroleum Institute will vehicle gear oil according to the using performance is divided into GL-1, GL-2, GL-3, GL-4, GL-5, GL-6 six. The emphasis on the overloading of the GL-1, GL-2, GL-3 have been eliminated in the market, and the current domestic car use generally were GL-4, GL-5 (GL-6 bus is used). From the product characteristics, the most intuitive is manual gearbox oil is bigger than the automatic transmission oil viscosity, the replacement cycle generally than the automatic transmission oil is shorter, the majority of household car at 4-6 million kilometers to replace the manual gear box oil.

AT gearbox oil: automatic transmission oil is special, it has two functions, in addition to the planetary gear lubrication, cooling, more important is to make is to transfer power, so its viscosity than manual gearbox oil as "thick". But its main role is to hydraulic transmission, so very good fluidity, anti bubbling ability than manual gearbox oil stricter requirements.

Automatic transmission of different types of oil is not mixed with AT gearbox, because different types of oil flow rate, density, dynamic and static friction properties, thermal expansion coefficient are different. Some manufacturers is according to the characteristics of AT transmission is introduced with matching gearbox oil, suggested that the owner or in the 4S store replacement or purchase the corresponding models were replaced, do not replace other models.

CVT gearbox oil: CVT gearbox oil essence and AT oil is similar, but it is also a special oil, because the CVT transmission is the steel chain transmission characteristics, need oil velocity, friction, coefficient of expansion is different, so you can't use AT gearbox oil instead of. Relatively speaking, it is the AT automatic transmission oil to dilute some, also has the certain prevent damping friction drive chain slippage.

Lubricating oil on three main gearbox, between absolute cannot replace and mix! Oil AT gearbox similar oil and CVT gearbox oil also can not replace each other, if it replaces the use of the short time, although not what impact, but a long time for the mechanical wear is not recoverable.

In the replacement after the engine oil, the need for rough with the engine oil dipstick, so if it adds a car go, will find that just added to the bit oil shortage phenomenon. This is because the gap between the many parts in the static gas after not inject new oil, such as oil guide hole, so be sure to start the engine again after the measurement in oil after the oil, make full to the level corresponding to the. At that time usually appear a small amount of fuel deficit phenomenon, again added to the standard position. Recommendations go to the 4S store maintenance when the attention of the details.To do better on cars, you can know more car tools like Launch X431 IV and t300 key programmer.

Automobile insurance misunderstanding

I believe many of my friends in the choice of insurance will and insurance salesman said, my car to the insurance, so most of my friends think of car to the "all risks" get "lost the whole". After understanding, in fact, the word "all risks" in insurance companies and state law does not exist, only a habit of people. People used to several major categories include cross strong insurance, commercial three party insurance, non deductible insurance, car insurance, pilfer, car insurance and other personnel, generally referred to as "". Therefore, "all risks" is not equal to the whole.

Your time in the vehicle insurance insurance insurance insurance companies must pay attention to the related definition for different categories of interpretation and the scope of the claims, or claims is the premise of what. Do not know if rushed to buy insurance, even if the purchase of the so-called "all risks", also will not get full compensation. My suggestion is that you can use based on its own, according to their own actual situation to select the security risks, so that not only can provide convenience for your future claims, but also save a part of the vehicle insurance costs.

Prior understanding, no purchase wading insurance vehicle when the engine inlet, is unable to get insurance company claims, but in fact this is not entirely correct. Because some of the provisions of the insurance companies have a clear explanation for this problem, car damage buy insurance is covered wading insurance and risk of spontaneous combustion of additional insurance, if not needed can be individually removed.

Believe that every car friends do not want the vehicle is stolen or destroyed in yourself, never mind, as long as you can meet your claim the insurance conditions, insurance company will complete compensation you deserve it. And here there is a problem, that is the vehicle insurance prices higher future can get the amount insured when the vehicle?

Of course, the answer is negative, if your car insurance, so the vehicle insured amount will be in accordance with the actual vehicle sales price, but if you are a continued insurance, so the vehicle insurance amount will be in accordance with the current sales or second-hand car sales prices for insurance. So you when the insured vehicle insurance amount should be the actual value is determined according to the insurance of vehicle insurance, full insurance at the time of the accident, ensure to get reasonable compensation. Don't over insurance, because excess insurance and can not be excessive compensation, it is just a waste of money.

A lot of the old car friends may have encountered such a problem, is often the insurance company refused to be in the purchase of insurance, in fact there is a misunderstanding, there are difficulties and not buy all of the categories, here that is car caustic danger. Because the old car loss is difficult, residual determination is also very fuzzy, other related repair parts are less, so most of the insurance company is not willing to underwrite such models. In addition, the purchase of insurance and three party insurance is not affected by the use of life. But for years long old models, related premium is a floating.

When after the accident, should be responsible to compensate, be claims procedures go payment to 4S shop or trusted repair shop for maintenance after. But many owners have encountered this problem, is to request the other party to repair place, this is in order to reduce the cost of repair, in not trusted repair factory repair is difficult to ensure the quality of repair, so the encounter such a situation must not easily promised. Because both each other or other insurance companies have no right to specify the place.To do better on cars, you can know more car tools like vas 5054a and fly100.