Three misunderstandings of consumers buying spark plugs[汽车修理知识]

In a lotCarIn the eyes of consumers,Spark plugIt's just a humble small part that is not taken seriously, so there are three major misunderstandings in buying spark plugs.

The first misunderstanding: replace the spark plug if it is broken.

Many car owners think: The parts are not bad, why should they be replaced? In fact, the efficiency of every auto part gradually decreases with consumption and wear.

Taking spark plugs for example, the best service period of general spark plugs is 1.5~2 kilometers, and the best service period of Denso Iridium spark plugs is 40,000 to 50,000 kilometers. After this best service period, even if the spark plug is not broken, it has been Failure to perform the best ignition function will result in a decrease in power, an increase in fuel consumption, etc., and then an increase in the wear of other parts, which will affect the economic life of the car, and of course it must be replaced.

The second misunderstanding: The original car is the best.

Many consumers believe that the spark plugs used in the original car are the best spark plugs produced by the car manufacturer. This is also a misunderstanding.

One is that almost all auto parts products are not produced by auto manufacturers, but are provided by parts manufacturers supporting the manufacturers. The outer packaging of the products is marked with the auto manufacturer's trademark; these supporting parts At the same time, the factory also puts similar products to the maintenance market, and the packaging is marked with the manufacturer’s own trademark. In fact, the quality of the products is the same, as is the case with the spark plugs of the Denso brand.

Second, products such as spark plugs are classified into high, medium and low grades. For the overall economic cost of vehicles, automobile manufacturers may not be equipped with high-end varieties. Denso's iridium spark plugs are more effective than ordinary spark plugs. , But many vehicles are equipped with ordinary spark plugs.

Therefore, the spark plug is not necessarily the best in the original car, as long as it is a branded product, the quality is guaranteed.

The third misunderstanding: It can be used when it can be installed.

As long as the spark plug can be installed on the car, it can be used. This is also a misunderstanding. 'Can be installed' only means that the size of the fastening bolts of the spark plug is the same. In fact, whether the spark plug can be matched with the engine requires the matching of related models such as'heat value','positive and negative ignition distance','thread length', etc. . Improper selection will not only affect the normal operation of the engine, but also affect the normal service life of the spark plug.

But this is not enough. We also need to make appropriate adjustments to the'calorific value' selection according to the climate region, seasonal changes, driving habits and other factors.

The correct selection of the appropriate spark plug should be consulted by professionals.

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