I bought a pair of brake pads in Japan, can I bring four spark plugs back home?

The common car engine ignition system mostly adopts non-contact ignition system, and the main faults of the ignition system are as follows:

1. Spark plug failure.

Fault phenomenon: spark plug carbon deposit, oil pollution and overheating.

Cause of failure: Spark plug deposition: The ends of the insulator, electrodes and spark plug shells are often covered with a fairly thick layer of black-gray powdery soft dirt.

Spark plug oil: Fault phenomenon: The end of the insulator, the electrode and the spark plug shell are covered with a layer of oil.

The spark plug is overheated: the central electrode is melted, the top of the insulator is loose and soft, and most of the ends of the insulator are gray-white crusty.

2. Ignition is too late.

Fault phenomenon: heavy muffler, sharply accelerated carburetor tempering, high engine coolant temperature, car driving weakness.

Cause of failure: The ignition angle is incorrect, and the ignition angle can be adjusted to the specified value.

3. The ignition time is too early.

Fault phenomenon: idle operation is not stable, easy to stall; When accelerating, the engine has a serious deflagration sound.

Cause of failure: The fault is mainly caused by the inaccuracy of the ignition timing adjustment or the inaccuracy of the ignition angle assembly, and the ignition tester can be connected to adjust the ignition advance angle to the specified value.

A small amount is fine, just go through the normal procedures.

If there is a large amount and many varieties, you need to declare.

So, of course, you need to pay the customs duty before you can take it away.

1. NGK (Shanghai Special Ceramics) (021-67740987, started in 1936 in Japan, a subsidiary of Japan Special Ceramics Co., Ltd., is committed to the development and production of spark plug preheat plugs and related products, internationally renowned spark plug brands, Shanghai Special Ceramics).

2. Bosch Auto Parts (Bosch (China) Investment) (400-826-8484, originated from the German brand, founded in 1926, a subsidiary of Bosch Group, specializing in the production, logistics and sales of auto parts and maintenance station equipment, Bosch (Shanghai)).

3. DENSO (DENSO (China) Investment) (010-65908337, founded in 1949 in Japan, top 10 auto parts brands, China's top 500, world-famous auto parts manufacturers, DENSO (China) Investment****).

4. Champion (Federal-Mogul (China)****) (800-325-8886, founded in 1907 in the United States, Federal-Mogul's core brand, focusing on the R&D and production of spark plugs, the world's leading spark plug manufacturer, Federal-Mogul (China)****).

5. Torch (Zhuzhou Xiang Torch Spark Plug Co., Ltd.) (0731-28450334, founded in 1961, a professional R&D, production and ignition system manufacturing base for spark plugs in China, Zhuzhou Xiang Torch Spark Plug Co., Ltd., a subsidiary of Weichai Power Holdings).

6. Adecco (SAIC-GM) (021-28902890, started in 1908 in the United States, General Motors' after-sales parts and service brand, a leader in the field of auto parts and services, SAIC-GM).

7. Autolite (021-50101616, founded in 1911, a subsidiary of Yousiai-Fangpai Group, a well-known spark plug brand in North America, a large-scale diversified auto parts and auto care products company in North America, and Yousiai-Fangpai Group).

8. Sanwei SW (Nanjing Sanwei Automotive Electrical Appliances) (025-58493505, focusing on the R&D, production and sales of automotive electrical products represented by spark plugs, a more powerful automotive electrical products supplier, Nanjing Sanwei Automotive Appliances).

9. HELLA (HELLA (Shanghai) Management) (Founded in Germany in 1899, HELLA is committed to the R&D and production of vehicle components, lighting technology systems and electronic equipment, the world's leading auto parts supplier, HELLA (Shanghai) Management).

10. Newstars (Ningbo Newstars spark plugs) (0574-63094200, founded in 1984, is a professional manufacturing enterprise integrating R&D, production and sales of spark plugs and LED automotive lamps, Ningbo Newstars spark plugs).

There are many brands of spark plugs, before understanding the brand of spark plugs, let's first briefly understand the spark plugs, as an indispensable part of the car, it is a gasoline engine ignition system, strong and high voltage current into the car cylinder to produce electric sparks, and then ignite the combustible gas components. The most important of these are the wiring nut, screw, electrode and housing. So let's introduce the brand of spark plugs.

First of all, the top is Bosch (Bosch) spark plug, this spark plug originated in 1902, the origin is Germany, and it is also a well-deserved century-old brand, so the technical aspect must be very mature, this spark plug is also a lot of materials, nickel alloy spark plug, nickel yttrium alloy spark plug, single platinum spark plug, double platinum spark plug, iridium spark plug, platinum iridium alloy spark plug, of course, the quality of different materials of spark plug is also different, and the time that can be used is also different. The most outstanding features of Bosch spark plugs are longer life, stronger ignition, faster start-up, and more fuel efficiency.

The second place is the NGK spark plug produced in Japan, assembled and packaged in Shanghai, China, this spark plug is born in Japan, and it is suitable for Buick, Cadillac, LaCrosse and Envision, with a basic installation of 4 pieces. This spark plug is characterized by corrugation, with five corrugations to increase the insulation distance. The excellent ceramic resistors are made of a special nickel alloy with excellent heat resistance and durability, and are filled with a special powder for high sealing and a solid structure, embedded in the copper electrode core.

The third is from Shanghai, China Kakamai spark plug, founded in 1998, it uses FAW-Volkswagen Audi, SAIC Volkswagen, FAW-Volkswagen, imported Volkswagen, etc., this spark plug is characterized by stronger power, more fuel saving, reduced fuel consumption, improve vehicle jitter, improve acceleration smoothness, low temperature cold start resistance, the use of double iridium center electrode.

The above are the three hottest spark plugs at the moment, of course, there are many better brands of spark plugs, such as Denso, torch, torch, etc., but it is still the above three the most popular, in addition, it should be reminded that no matter what brand of spark plugs are life-like, so be sure to replace the spark plugs regularly, so as not to cause unnecessary trouble, I hope mine can help you.

A spark plug can introduce high-voltage electricity (more than 10,000 volts) generated by the ignition coil into the engine cylinder, and generate a spark between the gaps between the spark plug electrodes to ignite the mixture. It is very necessary to use spark plugs in cars, so how to choose a suitable spark plug? Which spark plug is of better quality and more convenient to use?

One: ngkngk is produced in Shanghai special pottery industry, its shape design is very unique, and other spark plugs on the market are different, and the acceleration is more relaxed, there is no previous slow acceleration situation, it is very time-saving, and it will not make people irritable. It is also quieter and less noisy, so it won't bother others.

Two: Bosch Bosch auto parts.

The biggest feature of this spark plug is safety, both from the manufacturer and from the quality of the product. The manufacturer has a very perfect mechanism for the after-sales problem of the product, do not worry about this aspect, and the quality of the product production is very high, what is very safe, but also relatively resistant to high temperature, even if the car is driven for a long time, there is no need to worry, the spark plug will break, it can be said that it is very safe and trustworthy.

Three: denso Denso.

The sales channels for this product are very well-established, it is available in many places, and there are five stores online, which makes it very convenient to buy. Its quality is not to be said, but if it is really compared with the spark plug brand with the main quality, it is relatively inferior. Again, it's relatively safe to use.

Four: torch spark plug.

This product has a very high sales volume and is the most competitive in its category. The reason is that it is cheap, the use value is good, the quality is also good, and the cost performance is very high.

The spark plug of the car is an important part of the ignition system of the car, which introduces a high-voltage electric current into the cylinder, so that the cylinder generates an electric spark to ignite the combustible gas mixture. Therefore, the spark plug is a key part of whether the car starts smoothly or not. Now there are many brands of spark plugs on the market, and many people don't know which brand to choose, I think the better brands are, Bosch spark plugs, NGK spark plugs.

First of all, let's talk about the characteristics of these two types of spark plugs.

1. Bosch spark plugs: This is a company that has been focusing on the research and development of automotive products for a long time, and many original spark plugs of cars are Bosch brand, which shows that its influence is still relatively large. Its advantages are:

1.Good insulation and thermal conductivity. The ignition system of the car has a high thermal conductivity to the spark plug, and the spark plug with high thermal conductivity will easily ignite the flammable gas mixture to start?

The purpose of the car.

2.High temperature and corrosion resistant. The ignition system of the car is very hot, and if the spark plug is not resistant to high temperatures, it will melt in the ignition system, so that the entire ignition system will fail.

The same is true for corrosion resistance. 3.It has high mechanical strength.

Generally speaking, the premise that the spark plug can work normally is that the mechanical strength must meet the requirements, and the performance of the spark plug with higher mechanical strength will be relatively high.

2. NGK spark plug: This spark plug is a Japanese brand, founded in 1936, is a relatively famous old brand, and it is also the original spark plug specially used for high-end cars.

Its characteristics are:1Long service life. If the spark plug does not last long, it will be troublesome to replace it frequently. 2.High temperature and corrosion resistant. Generally good spark plugs will have this feature. 3.Good thermal conductivity.

Bosch. Bosch is one of Germany's leading industrial companies in the automotive and intelligent transportation technology, industrial technology, consumer goods and energy and building technology industries.

AC Deco. Founded in 1908, Acdelco is an independent aftermarket business brand of General Motors, and has been committed to providing high-quality auto parts for car owners around the world for more than 100 years, providing more than 100,000 varieties of auto parts, covering more than 100 countries and regions around the world.

autolite

The company is a Fortune 100 company that invents and manufactures technologies to solve tough challenges related to security, security and energy, such as global macro trends.

Stand-up spark plugs.

Liben spark plug is a special spark plug suitable for various types of motorcycles. It is the result of the research and development of engineering and technical experts, which can resist the chemical corrosion of fuel oil and combustion exhaust gas to the greatest extent and prolong the service life.

Extreme flame spark plugs.

China's world's highest-performance fuel-saving spark plug has great performance advantages in terms of fuel saving and power improvement compared with any spark plug brand. The only national brand that has the potential to break the monopoly of foreign brands, but it is currently less well-known.

Starlight. Ningbo Xingguang spark plug is a collection of scientific research, development, production as one of the professional spark plug manufacturers, the factory has strong technical force, advanced production, testing equipment, is one of the largest spark plug manufacturers.

Hello, if you choose a spark plug, you don't necessarily have to choose what brand, but you must choose a safe and qualified spark plug.

Bosch spark plugs, you can buy them online, ** in the 19 yuan to 939 yuan set, are very good, choose a suitable model for you to buy, you must buy in ***, so that there is a guarantee.

NKG spark plugs can be purchased in the official direct store of Tmall car accessories, their models are very many, ** between 15 yuan and 135 yuan, the highest configuration is NKG iridium platinum car spark plugs, the data they give is a melting point of 2300 degrees, life span of 8-100,000 kilometers, suitable for Mercedes-Benz series of cars, they give advice is to check the spark plug every 20,000 kilometers to ensure personal safety, and be sure to use the model matching system to check and confirm before placing an order to ensure that the model can be matched.

Torch spark plug, **between 28-276, torch spark plug has a design for the needle, ignition guy is good, **the highest is suitable for Cruze Yinglang Fox LaCrosse Accord, and other models, the material used is double iridium, the melting point is 2454 degrees, 100,000 kilometers of life.

The above spark plugs are very good, the melting point of ordinary nickel alloy in the data given in NKG is 1445 degrees, 20,000 kilometers, single platinum 1580 degrees, 3-40,000 kilometers, single iridium 1680 degrees, 5-60,000 kilometers, double platinum 2300 degrees, 8-100,000 kilometers, iridium platinum 2300 degrees, 8-100,000 kilometers. This is just reference data, the spark plug should be checked regularly, and if it is found to be damaged, it should be replaced in time to prevent unnecessary trouble in building a city. Also, when buying a spark plug, be sure to choose a spark plug that suits your model.