Spark plugs are designed to be thrown away after a certain amount of use. The amount of use varies depending on the type of spark plug, but most need to be replaced after about 10,000 miles (16,000 km). Some types of spark plugs can last up to 30,000 miles (48,000 km).
When a spark plug needs to be replaced, it is important to dispose of it properly. There are many options for disposing of spark plugs, but the best option is to take them to a recycling center.
Recycling centers will accept spark plugs and recycle them properly. This is the best option because it keeps the spark plugs out of landfills and reduces environmental impact.