Due to the different material of spark plugs, spark plugs can be divided into: ordinary copper core, yttrium, platinum, iridium, platinum alloy spark plugs, etc. The service life of these types of spark plugs varies, and there are differences in the recommended replacement mileage. When selecting, it is important to distinguish them clearly.
Generally speaking, in normal use, the service life of a common copper core spark plug is 30,000 kilometers, while the service life of high-quality alloy material spark plugs is 60 to 90,000 kilometers. The maintenance cycle of different car manufacturers may not be entirely the same, so the specific replacement cycle should be based on the manufacturer’s specification. Do not extend the service life unnecessarily.
If you notice that the consumption of fuel increases, you can consider whether to change a spark plug. Generally, the repair shop will suggest replacing the spark plug every two to three thousand kilometers. This is because although the spark plug has not completely deteriorated, its performance has been reduced. Actually, this depends on the quality of the spark plug. Replacement times of ordinary spark plugs are 4,000 kilometers for a four-year-old spark plug, and 6 to 8 thousand kilometers for a six-to-eight-year-old spark plug. If you buy your own spark plugs online or in the DIY auto parts stores, they will usually range from a few tens of yuan to one hundred yuan. Find a reliable repair shop to install them, and they will usually charge around 20 yuan for the installation fee. The installation process takes a very short time and can be completed by oneself. This way, you can save money and avoid dishonest repair shops using semi-new spark plugs that were taken from other people’s cars.
