Spark plug this thing, a bit like the igniter on the gas stove, is through the high-pressure air flow of gasoline and air mixture gas ignition device, spark plug although small, but is the key part of the engine operation, if there is no it or damage, the engine can not ignite, the vehicle will be nested. So how often do spark plugs usually replace?
The usual shelf life of spark plugs
There are many types of spark plugs on the market, and the high and low grades are also different, so the shelf life of the spark plugs is also different. In general, the life of the resistance spark plug is 20,000 kilometers, the most common nickel alloy spark plug life is about 30,000 to 40,000 kilometers, the life of the platinum spark plug is 50,000-60,000 kilometers, the life of the double platinum spark plug is 80,000 kilometers, and the life of the iridium spark plug can reach 100,000 kilometers. But this shelf life is only a reference, for example, the merchant claims that this TV is guaranteed for ten years, some people use it for three years to break, and some people use it for twenty years.
How do I tell if I need to replace the spark plug?
Since the shelf life is not accurate, how do we judge that the spark plugs of our car need to be replaced? Mainly based on two points, the first maintenance manual replaces the spark plug cycle, and the second vehicle daily driving performance.
If the vehicle has some or more problems in the driving, such as fire difficulty, jitter, flameout, fuel consumption increase, power decline, etc., there may be a problem with the spark plug, at this time you can detect the state of the spark plug, if it is similar to the following figure, you can replace the spark plug.
In summary, the replacement of the spark plug should be combined with the use of the use, as long as the above problems are encountered, the spark plug must be replaced in time.