How many kilometers should the Highlander replace the spark plugs?
3 Answers
The Highlander should replace the spark plugs at around 30,000 kilometers. The function of the spark plugs is to introduce high-voltage electricity into the combustion chamber, causing it to jump across the electrode gap and generate a spark, igniting the combustible mixture in the cylinder. Taking the 2020 Highlander 7-seater 4WD Million Commemorative Edition as an example, it belongs to the SUV category, with body dimensions of: length 4890mm, width 1925mm, height 1715mm, and a wheelbase of 2790mm. The 2020 Highlander 7-seater 4WD Million Commemorative Edition is equipped with a 2.0L turbocharged engine, with a maximum horsepower of 220ps and a maximum power of 162kw.
The spark plug replacement interval for the Highlander is typically every 100,000 to 120,000 kilometers, depending on your driving habits and the vehicle manual. Having driven a Highlander for several years, I've noticed that if you frequently drive long distances or in dusty areas, the spark plugs wear out faster and may need replacement as early as 80,000 kilometers. Spark plugs are responsible for ignition, and when they deteriorate, the engine tends to shake, power decreases, and fuel consumption gradually increases. During each maintenance session, have the technician inspect them to prevent minor issues from escalating. Delaying replacement may lead to difficulties starting the engine or even more significant problems, affecting driving safety. Regular maintenance is a cost-effective and hassle-free habit. Remember, don't just rely on the odometer; consider the actual conditions, such as unusual noises from the car, and get it checked immediately.
I've been driving my Highlander for over five years, and I generally replace the spark plugs every 100,000 kilometers or so. The first replacement was at 105,000 kilometers when the car had trouble starting and was shaking badly. The mechanic said it was due to excessive carbon buildup on the spark plugs. After replacement, everything returned to normal, and fuel consumption stabilized. It's advisable to pay attention to the ignition system, especially during frequent starts in the city, as spark plugs wear out faster. If not replaced, not only will fuel consumption increase, but it will also affect the engine's lifespan, and the accumulated repair costs over time won't be worth it. The maintenance manual's recommendation of 100,000 kilometers is a reference, but based on personal experience, don't push it too far—address any abnormalities as soon as possible.
