How many kilometers to replace the spark plug and how many kilometers to replace the spark plug

Ordinary spark plugs can replace 3-40,000 km, platinum spark plugs can replace 6-80,000 km, and iridium spark plugs can replace 8-100,000 km. The service life of a spark plug is related to the working condition of the car engine and the driving habits of the driver.

Spark plugs, i.e. ordinary spark plugs with nickel-based alloy electrodes, have become increasingly unsuitable for modern engines with high power, high speeds and high compression ratios. In order to make the spark plug have higher ignition performance and service life, people began to aim for *** (platinum, iridium, yttrium, etc.). Use them in the electrodes and improve the structure of the ignition end accordingly.

The melting point of platinum is 2042k and iridium is 2716k. When some elements (such as rhodium and palladium) are added, it has extremely high chemical resistance. Make a thin electrode (diameter mm), directly sintered at the fired end of the insulator, or welded on the working surface of the front end and side electrode of the central electrode with a disc laser with a diameter of mm, this electrode has a strong tip discharge effect, it can be ignited when the voltage is relatively low, and its spark gap can be increased to mm, and the performance of the spark plug has undergone a qualitative change:

First, the high corrosion resistance of the electrode can keep the spark gap unchanged for a long time (in the 160,000 km test, the spark gap of the platinum electrode only increased, so that the ignition voltage is stable and the engine works smoothly. There is no need to adjust and correct the spark gap during the use of the spark plug. Second, it is suitable for cold start.

Ignition is easy due to tip discharge, which improves the engine's performance at low speeds. The third is to reduce the heat absorption and flame-out of the electrode and increase the spark energy. The tiny electrodes expand the empty space around the gap, increasing the accessibility of the mixture, making combustion more complete and reducing emissions.

The service life of the spark plug of the original car is replaced in 100,000 km, and the spark plug is divided into four types according to the material: ordinary spark plug, single platinum spark plug, iridium spark plug, and double iridium spark plug. The symptoms of spark plug failure are: 1. Causing the engine to produce a large amount of carbon deposit, 2. It is difficult to start the car, 3. The exhaust gas exceeds the standard, 4. The power is insufficient, and 5. Idle shaking.

Generally speaking, ordinary spark plugs can be replaced at 20,000 km, and platinum or iridium spark plugs can reach a replacement cycle of more than 60,000 km.

It does not mean that the spark plugs need to be replaced after these kilometers are used, which also has a lot to do with the use status of the vehicle. Some vehicles have difficulty ignition, shaking, or lack of power when filling the fuel valve before replacing the kilometers. It could also be that the spark plug is worn or has a lot of carbon deposits that need to be checked for replacement.

In the ignition system of a gasoline engine, a high-voltage electric current is introduced into the cylinder to create an electric spark that ignites the combustible mixture components. It is mainly composed of a connecting nut, an insulator, a connecting screw, a central electrode, a side electrode, and a shell, and the side electrodes are welded to the housing. In spark plug standards, the calorific value of the spark plug is often used to characterize the thermal characteristics of the spark plug, and the calorific value of the spark plug indicates the balance of heat absorption and heat dissipation of the spark plug insulator skirt, the higher the heat value.

The stronger the heat absorption and heat dissipation balance, the lower the heat generation of the hot spark plug and the higher the heat generation of the cold spark plug. Generally, engines with high power and high compression ratio choose cold spark plugs with high calorific value. Conversely, low-power, low-compression engines opt for spark plugs with low calorific value.

The general selection of spark plugs is determined by the factory through product type testing, and should not be replaced at will.

The general car uses ordinary spark plugs, normally speaking, it can be 3-40,000 kilometers on the line, and this platinum or iridium spark plug can extend the replacement time, the longest can reach 80,000 kilometers, and the life of the spark plug is affected by the engine conditions and the driver's operating habits, so it is also necessary to refer to the actual situation, and the spark plug electrode gap should be replaced in time.

The replacement mileage of spark plugs: 1. The copper core is replaced every 2-30,000 kilometers; 2. The nickel alloy core is replaced every 4-60,000 kilometers; 3. The platinum core is replaced every 80,000 kilometers; 4. The iridium core is replaced every 100,000 kilometers.

Spark plug replacement mileage:

1. The copper core is replaced every 2-30,000 kilometers;

2. The nickel alloy core is replaced every 4-60,000 kilometers;

3. The platinum core is replaced every 80,000 kilometers;

4. The iridium core is replaced every 100,000 kilometers. The consequences of not changing the spark plug for a long time are as follows:

2. The lack of cylinder in the cylinder that does not work due to misfire is manifested as engine shaking, engine fault light on, and the sound of the exhaust cylinder is incoherent and abrupt;

3. Insufficient combustion causes exhaust emissions to not meet the standard, which pollutes the environment.

In general, resistance spark plugs have a life of 20,000 km, platinum spark plugs have a life of 40,000 km, and iridium spark plugs can reach 6 to 80,000 km.

If you find that the fuel consumption of the vehicle increases, you can consider whether to replace the spark plug, and the general repair shop will recommend replacing it after 20,000 or 30,000 kilometers, because at this time, although the spark plug is not completely damaged, the efficiency has decreased.

The service life of the automobile spark plug is different according to the material of the spark plug, and it is not uniform. At present, there are four common electrode materials on the market: copper, nickel alloy, platinum, and iridium.

The material used in the spark plug has a decisive impact on its replacement cycle, and it should be noted that the effect will be worse if the replacement of a poor quality copycat spark plug is replaced. It is recommended to use the mobile app to do a test comparison before and after replacing the spark plug, and the effect is clear at a glance. During the test, the mobile phone is placed next to the gear knob or center console, and the engine can be started for 2 minutes.

[Pacific Motor] spark plug replacement mileage: 1. The copper core is replaced every 2-30,000 kilometers; 2. The nickel alloy core is replaced every 4-60,000 kilometers; 3. The platinum core is replaced every 80,000 kilometers; 4. The iridium core is replaced every 100,000 kilometers.

How many kilometers of the car to change the spark plug can not be generalized, it depends on the specific model, what type of spark plug is used.

The car maintenance manual has information about the service cycle of replacing the spark plug, which can be replaced according to the guidance cycle.

Generally, there is a large margin in this guidance cycle, for example, the manufacturer recommends a change of 60,000 kilometers, but in fact, it is okay to drive to 80,000 kilometers.

This is a comparison image of the new Volkswagen Magotan spark plug and the 60,000 km used spark plug. It can be seen that there is basically no ablation in the central stigma, which is no different from the new one, just adjust the discharge gap, and you can use another 60,000 kilometers.

The spark plug is forgotten to be replaced for a long time, which will cause difficulty in starting, and the worst consequence is to pull the cylinder, after the electrode of the central column head is ablated for too short, the wrapped ceramic insulator is easy to burst, fall into the cylinder, scratch the cylinder wall, and cause the cylinder to be pulled. Changing the middle section will be a big expense.

In the end, how many kilometers are appropriate, you need to take out the spark plug to see, if the metal electrode in the center column is not very short, you can adjust the electrode gap and then use.

Of course, if you are not afraid of spending money, you can change it at any time, regardless of the number of kilometers, the new one is better than the old one.

Photo by Pacific Automobile Q&A called the beast).

Ordinary spark plugs can be replaced at 20,000 kilometers, and platinum or iridium spark plugs can be replaced at 60,000 kilometers.

The spark plug has its own replacement cycle, because the electrode of the spark plug is divided into different materials, and the service cycle is not the same, and the vehicle instruction manual will indicate the number of kilometers of the spark plug replacement.

The spark plug replacement needs to be replaced, theoretically it should be replaced with the same brand and model, the discharge gap of the old and new spark plugs is not the same, the resistance value of the new and old spark plugs is not the same, not all of them will be replaced There will be shaking, acceleration difficulties, fuel consumption and other problems. In addition to this love, spark plugs have a certain lifespan, and the product quality and life of the same batch should be very close.

Under normal circumstances, it depends on the type of spark used in the original car, and the replacement cycle of various types of spark plugs: 1. The life of ordinary spark plugs is 20,000 kilometers, and it can still be used after more than 20,000 kilometers, but it is recommended not to exceed 40,000 kilometers, otherwise the ignition efficiency will decrease, resulting in a decrease in engine power; 2. The life of a single platinum spark plug is 5-80,000 kilometers, and it needs to be replaced regularly.

The replacement of spark plugs needs to be replaced according to different materials, and the specific classification is as follows: 1. Nickel alloy spark plugs: The replacement cycle is 20,000 30,000 kilometers.

2. Niyttrium alloy spark plug: 30,000 kilometers. 3. Single platinum spark plug:

for 40,000 km. 4. Double platinum spark plug: 60,000 kilometers.

5. Iridium spark plug: 80,000 kilometers. 6. Platinum-iridium alloy spark plug:

The replacement cycle can reach 100,000 km.

Generally speaking, ordinary spark plugs can be replaced after 20,000 kilometers, and platinum or iridium spark plugs can reach 60,000 kilometers or even more replacement cycles.

1. Nickel alloy spark plug: The replacement cycle is 23,000 kilometers. 2. Niyttrium alloy spark plug:

for 30,000 km. 3. Single platinum spark plug: 40,000 kilometers.

4. Double platinum spark plug: 60,000 kilometers. 5. Iridium spark plug:

for 80,000 km. 6. Platinum-iridium alloy spark plug: the replacement cycle can reach 100,000 km1

The spark plug throttle will also cause shaking if there is carbon deposit, but the spark plug of the K3 is about 6w kilometers, which is almost the end and can be replaced.

The service life of nickel alloy spark plugs is about 20,000 kilometers.

The service life of the spark plug is related to the electrode material, spark plug brand and other factors, and the ordinary nickel alloy spark plug needs to be replaced once after about 20,000 kilometers, and the service cycle is the shortest; Platinum alloy spark plugs are replaced at about 40,000 kilometers; Iridium spark plugs can be replaced in about 6-80,000 kilometers, and the service life is longer. However, these are only indicative values and will depend on the use of the spark plug. Attention needs to be paid to the maintenance of spark plugs during use, which can prolong their service life and reduce fuel consumption.

Maintenance of spark plugs generally requires regular inspection, regular replacement, and regular cleaning.

Selection of spark plugs

The material grade classification of spark plugs is roughly nickel alloy spark plugs, platinum spark plugs, iridium platinum spark plugs, and iridium spark plugs, and iridium platinum spark plugs are good in these materials.

In addition to the choice of spark plug material, the owner should also pay attention to the selection of the calorific value of the spark plug, it is best to choose the calorific value that matches the original car, and the calorific value that is too large or too small will have a certain impact.

If the calorific value is smaller, there may be insufficient combustion of oil-gas mixture, insufficient power, etc., and even due to insufficient heat dissipation, the spark plug temperature will be too high, which will further cause deflagration and other phenomena. If the calorific value of the spark plug is increased, the heat dissipation capacity is stronger, the temperature of the spark plug drops faster, and the ignition head is prone to carbon deposit, causing power run, so that the spark plug cannot jump out of the fire.