Can Changing Spark Plugs Save Fuel?

[DelDamian]

Changing spark plugs can save fuel. Spark plugs are a crucial component of the ignition system in gasoline engines. They introduce high-voltage electricity into the combustion chamber, creating a spark by jumping the electrode gap, which ignites the combustible air-fuel mixture in the cylinder. Spark Plug Replacement Interval: Under normal maintenance conditions, spark plugs should be replaced every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it's recommended to follow the vehicle's manual. Here are some general guidelines for replacement: platinum spark plugs should be replaced at 40,000 km, standard nickel alloy spark plugs at 20,000 km, and iridium spark plugs at 60,000 to 80,000 km. Effects of Worn-Out Spark Plugs: Damaged spark plugs can directly cause issues such as electrical leakage in the ignition system, increased fuel consumption, and reduced engine power. The most significant problem is difficulty in starting the engine, which affects the vehicle's normal operation. Severe spark plug erosion—indicated by pitting, damage, or melted electrodes at the tip—means the spark plug is worn out and should be replaced.