Are spark plugs universal?

In fact, spark plugs are not universal. Many people only pay attention to the material and number of poles when replacing spark plugs, but the calorific value of spark plugs is also particular. The calorific value of each brand has its corresponding model, so you must pay attention to whether its calorific value is in line with your model when buying, otherwise it will cause varying degrees of impact. Let's talk about it by the way, where can you see the calorific value of the spark plug.

Where to see the heat value of the spark plug:

The calorific value of the spark plug is represented by numbers. The calorific value includes nine numbers from 1 to 9, of which 1--3 are low calorific values, 4--6 are medium calorific values, and 7--9 are high calorific values.The calorific value of spark plugs of most cars is in the range of 5-7.And these numbers are usually located in the middle of the model. For example, the model is BP5E S -1 1. Then the number 5 is the calorific value of the spark plug.

If you choose spark plugs with different calorific values, it is easy to affect the output of the engine, and it is even possible that the spark plugs are directly scrapped. For example, the original calorific value of the car itself is 7, and it is accidentally replaced with a piston with a calorific value of 4 when replacing it. This will not have good resistance (high temperature). If the engine continues to run at high speed At that time, the spark plug is easily burnt due to insufficient heat dissipation, so it is very important to choose the correct calorific value.