How Many Kilometers Should GAC Honda Spark Plugs Be Replaced?
3 Answers
GAC Honda uses NGK iridium-platinum spark plugs with a replacement interval of 60,000-80,000 kilometers. Under normal maintenance conditions, spark plugs should be replaced when the vehicle has traveled 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type. It is recommended to follow the instructions in the owner's manual. You can refer to the following maintenance standards for replacement: platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000-80,000 kilometers. Spark plugs are crucial components in a gasoline engine's ignition system. They introduce high voltage into the combustion chamber and generate sparks by jumping across the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. The main types of spark plugs include: standard spark plugs, insulator projection spark plugs, electrode spark plugs, seat spark plugs, pole spark plugs, and surface gap spark plugs.
My Honda has been running for over 5 years, and the maintenance manual clearly states that spark plugs should be replaced at 40,000-60,000 km. In practice, it depends on the specific model. For naturally aspirated engines like the Fit, the original iridium spark plugs can last up to 60,000 km without issues. However, for turbocharged engines like the 1.5T in the Accord, the high-temperature environment causes faster wear, so it's best to inspect them at 40,000 km. Last time, when my Civic reached 50,000 km, I noticed sluggish acceleration, and sure enough, the spark plug gap was too wide—I replaced them immediately. During regular maintenance, it's safest to have the mechanic check the electrode condition with a borescope. Never wait until they completely fail to fix them; saving a little money now might damage the engine later.
As someone who frequently drives long distances, I pay special attention to the condition of spark plugs. Different Guangqi Honda models have varying replacement intervals: naturally aspirated engines are recommended at 60,000 kilometers, while turbocharged models should be replaced at 40,000. Last week, my Haoying suddenly started shaking on the highway, and the repair shop diagnosed it as poor ignition due to carbon buildup on the spark plugs. The mechanic said routine maintenance shouldn't just focus on mileage—spark plugs wear out faster with frequent short trips or the use of low-quality fuel, and should be checked for electrode erosion as early as 30,000 kilometers. Replacing them with a set of original iridium spark plugs only costs a few hundred yuan, which is much more cost-effective than a major engine overhaul.
