What are the benefits of replacing spark plugs?
2 Answers
Replacing spark plugs can improve the vehicle's power performance. Spark plugs themselves are consumable parts that require regular replacement. If spark plugs are damaged, they can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most significant problem is difficulty in ignition, which affects the normal operation of the vehicle. Severe spark plug erosion, blistering at the top of the spark plug, damage, or melted and eroded electrodes all indicate that the spark plug is damaged and should be replaced. Spark plug location: Spark plugs are installed on the side or top of the engine. In earlier models, spark plugs were connected to the distributor via ignition cables. 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 every 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 every 40,000 kilometers, standard nickel alloy spark plugs every 20,000 kilometers, and iridium spark plugs every 60,000 to 80,000 kilometers.
Last year, I replaced the spark plugs in my car, and the results were fantastic. After the replacement, the engine ignition improved immediately, throttle response became much quicker, acceleration was no longer sluggish, and overtaking felt more confident. Fuel consumption dropped noticeably—previously around 11 liters per 100 kilometers, now down to about 10.5 liters, saving a lot on fuel costs over time. Engine noise also reduced, no longer buzzing on the highway. The mechanic mentioned that old spark plugs failing to ignite properly could lead to incomplete combustion, wasting fuel and potentially causing carbon buildup issues. It's recommended to replace them every 30,000 kilometers, opting for platinum or iridium materials for stronger ignition and durability, avoiding costly engine overhauls in the future. After the replacement, the driving experience was upgraded instantly, making it feel like driving a brand-new car.
