Will Replacing Spark Plugs Reduce Fuel Consumption?

[Debra]

Replacing spark plugs can reduce fuel consumption. If spark plugs are damaged, it can directly cause issues such as electrical leakage in the vehicle's ignition system, increased fuel consumption, and decreased power. The most significant problem is difficulty in ignition, which affects the normal operation of the vehicle. Severe erosion of spark plugs, including scarring at the top, damage, or melted and eroded electrodes, indicates that the spark plugs are damaged and should be replaced. Location of Spark Plugs: Spark plugs are installed on the side or top of the engine. Early spark plugs were connected to the distributor via ignition cables, but over the past decade, most car engines have been modified to connect the ignition coil directly to the spark plug. Spark Plug Replacement Interval: Under normal maintenance conditions, spark plugs should be replaced after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it is recommended to follow the user manual. Generally, platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.