How often should car spark plugs be replaced?

Date:2025-01-09 Times:92

How often do spark plugs need to be replaced? This is something that many car owners are concerned about. Because the engine on each car is different, the types of spark plugs installed on the engine are also different, so the mileage for replacement is also different. So today, the old mechanic will take you to understand how many kilometers different types of spark plugs installed on different vehicles should be maintained?

How often should a car's spark plugs be replaced? According to this standard, the car is powerful and fuel-efficient.

There are three common materials for spark plugs, which are also very easy to identify. We can tell from the spark plug head what material the spark plug on our car is made of.

Let’s look at the first type first. The center electrode is flat, and the side electrodes are also flat. This type of spark plug is the most common nickel alloy spark plug. This type of spark plug is relatively cheap and is generally used in naturally aspirated engines within 80,000 or small SUVs.

The second type is that the center electrode is a pointed one, and the side electrode is a flat one. This type is generally a platinum spark plug, which may be used in both turbocharged and naturally aspirated engines.

The third type of spark plug is the center electrode and the side electrode, all of which are pointed. This type is generally an iridium platinum spark plug, or a double iridium platinum spark plug. This type of spark plug is generally of better quality and more expensive.

Let's now talk about the mileage requirements for replacing these three types of spark plugs. The most common nickel alloy spark plugs are generally used in naturally aspirated engines. The manufacturer recommends replacing them every 40,000 kilometers, but in fact, there is no big problem if the car owner drives 60,000 to 80,000 kilometers. However, don't drive too much, because the ignition of the spark plug directly determines the fuel consumption and power of the engine, so we can replace the spark plug between 60,000 and 80,000 kilometers.

The second type is iridium spark plugs or single platinum spark plugs. This type of spark plug is generally used in "turbocharged and naturally aspirated" engines, but there are also differences. If it is used in a turbocharged car, it generally needs to be replaced after 50,000 to 80,000 kilometers. If it is used in a naturally aspirated car, it generally needs to be replaced after 80,000 to 100,000 kilometers.

The last one is the double iridium spark plug. This type of spark plug is of very good quality and very durable. For example, the naturally aspirated engines of ordinary Japanese cars can be replaced after 100,000 kilometers. If it is a turbocharged engine, it can be replaced after 80,000 kilometers. It is very durable.

The mileage of the car is the most important criterion for replacing the spark plugs. However, in addition to the mileage, you can also remove the spark plugs during car maintenance and check the gap between its electrodes to determine whether the spark plugs need to be replaced.

Because spark plugs directly affect the power and fuel consumption of the car, the health of the spark plugs is very important. If your driving habits are not good and there is a lot of carbon deposits in the engine, the spark plugs will easily be affected by the carbon deposits, resulting in ignition difficulties.

Therefore, when maintaining your car, in addition to checking the gap of the spark plugs, you should also regularly check whether the spark plugs are adhered by carbon deposits. If there is a lot of carbon deposits in the car and they are never cleaned, it will seriously affect the ignition function of the spark plugs, and the car will easily have difficulty igniting.

Therefore, many car owners usually clean the carbon deposits of their cars regularly during daily maintenance, in order to ensure that many parts in the car can work normally.

Everyone knows that carbon deposits in cars are a common problem and a particularly damaging problem. When carbon deposits in the engine are particularly serious, it will seriously affect the overall performance of the car, and multiple parts in the engine will also have problems.