How to determine if the spark plug needs to be replaced? How to choose spark plugs?

Engines can be divided into two types based on fuel: gasoline and diesel. Gasoline engines have a different ignition method from diesel engines, so they require the use of spark plugs as a component. The importance of spark plugs for the engine or the entire vehicle is self-evident, as they are vulnerable parts and require a replacement cycle. Many car owners have some misconceptions about this in their use. Today, let's talk about some knowledge about spark plugs. Spark plugs have different usage times depending on the electrode material. There are various types of materials available on the market, with ordinary spark plugs typically having a mileage of around 20000 to 30000 kilometers, platinum plugs can increase to 40000 to 50000 kilometers, and iridium plugs can reach around 80000 kilometers. In addition, there are also dual platinum, iridium platinum, and so on, and the corresponding usage mileage is also different. It is not necessary to remember in detail. In short, the more expensive the spark plug, the longer the usage time. However, it should be noted that this mileage is the most economical or recommended mileage. Most spark plugs now have good quality, and it is normal to use them again beyond the marked mileage. However, whether to continue using them or not needs to be fully considered. During the use of spark plugs, the ignition effect will decrease. Simply put, the spark will become smaller and smaller. In the absence of faults, it is normal for many ordinary spark plugs to be used for 40000 to 50000 kilometers, and sometimes even more. However, after exceeding the recommended mileage, the ignition effect will decrease, causing insufficient fuel combustion, which will increase fuel consumption, carbon deposition, and reduce power. However, it may not be very obvious in the sense, but it is not very beneficial for the engine. Spark plugs are not expensive compared to the mileage used, so it is recommended to replace them after reaching the mileage. The specific amount is stated in the manual, and it does not matter if it is delayed. Of course, if it is damaged in advance, it should be replaced in a timely manner. Yes. After a spark plug malfunction occurs, the engine generally idles very unstable, sometimes even jumping up and down and stalling, resulting in a decrease in power and a significant increase in fuel consumption. As for how to choose a new spark plug, it basically depends on the money. As mentioned above, choosing a more expensive one not only increases the mileage, but also has a better ignition effect, which can slightly improve power and reduce fuel consumption.

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