A hazardous waste is a special type of waste because it cannot be disposed of by common means like other by-products of our everyday lives. Depending on the physical state of the waste, treatment and solidification processes might be required.
How to Change Spark Plugs in a Car. Two Parts: Removing Old Spark Plugs Installing New Plugs. Petrol and LPG Gas powered cars run on what are essentially controlled explosions of energy, controlled in part by the spark plugs. The spark plugs channel the electrical current from the ignition, igniting the fuel.
Spark plugs need replacing when a car has trouble starting or accelerating or when the engine misfires, surges or produces a rough sound. Vehicle manufacturers offer recommendations for changing spark plugs that can be between every 30,000 miles and 100,000 miles, depending on the type of plugs.