How Often Do Spark Plugs Need To Be Replaced?

As we all know, many parts of the car need to be maintained and replaced at a corresponding time. If the engine is the heart of the car, then the spark plug is the heart of the engine. Naturally, there is time to replace it. This is a commonplace topic. Let's talk about it today.
How to tell if the spark plug needs to be replaced?
If the spark plug needs to be replaced, remove it and inspect it, observe its color and the gap between the motor and the gap between the ceramic and the metal shell to see if there is air leakage. If you find it inconvenient to remove it, you can also observe whether it is difficult to start the car when the car is cold, whether the idle speed is jittery, or whether there is a significant decline in engine performance. If these symptoms occur, it is very likely that the spark plug has expired.

Let's start with a list of spark plug materials. How often should various spark plugs be replaced?
1. Ordinary nickel alloy spark plug
This type of spark plug has the largest number of installed vehicles because it is particularly economical. We can see this type of spark plug in many models priced around 100,000 yuan and below. Because of its stable performance and low price, this type of spark plug from Dr. The purchase price is only about 10 yuan each, and this type of spark plug is the most frequently replaced. Replacement mileage: about 30,000 kilometers
2.Platinum spark plug
This type of spark plug, due to the upgrade of metal material, can be said to greatly extend the service life of our spark plugs and make our spark plug ignition more stable and reliable. After all, more expensive precious metals are used, so the service life of the spark plugs is improved. Replacement mileage: about 60,000 kilometers.
3. Iridium spark plug
This type of spark plug is more reliable than platinum spark plugs, and the life of the spark plug is also improved. Because the metal is better, its electrical conductivity is also better, and it can produce stronger and more stable electric sparks. Many Nissan models are equipped with this type of spark plug. Replacement mileage: about 80,000 kilometers.
4.Iridium platinum spark plug
To be honest, I have never seen this type of spark plug. Even if it is removed, I don't recognize it. The name may be a combination of iridium spark plug and platinum spark plug. This type of spark plug should be installed in vehicles with a large cylinder compression ratio. on performance cars. Replacement mileage: about 120,000 kilometers.
Friends, you can look through the maintenance manual to see how long the manufacturer recommends replacement intervals.