How often should the spark plugs be replaced on a Mistra?
3 Answers
The spark plugs on a Mistra should be replaced every 60,000 kilometers. Methods to determine if spark plugs are damaged: Remove the spark plugs and observe them. The condition of the spark plugs can be judged based on their appearance and color. Normal spark plugs have a skirt and electrodes that appear gray-white, gray-yellow, or light brown. A properly functioning spark plug has a skirt that is reddish-brown, with an electrode gap between 0.8-0.9mm and no signs of electrode burn. If the spark plugs are covered in oil or deposits but are not damaged, they can continue to be used after cleaning off the oil and deposits. If the spark plugs are severely damaged, with signs such as blistering at the top, black streaks, cracks, or melted electrodes, the cause of the damage should be identified. After troubleshooting, replace the spark plugs with new ones. Additionally, if the spark plugs appear black as if smoked, it indicates that the wrong heat range was selected or that the air-fuel mixture is too rich, or that engine oil is leaking into the combustion chamber.
The frequency of changing spark plugs for the Mistra. After driving for ten years, I've found that generally replacing them every 60,000 kilometers is most appropriate. For experienced owners like me who frequently monitor their car's condition: if acceleration feels sluggish, fuel consumption suddenly increases, or the engine shakes severely during cold starts, it might be time to check the spark plugs. Iridium spark plugs last longer, possibly up to 80,000 kilometers, but ordinary copper-core ones need replacement sooner. Delaying replacement can affect ignition efficiency, cause engine carbon buildup, and even damage the catalytic converter, leading to more complicated and costly repairs. During regular maintenance, it's good to consult with the mechanic and adjust based on driving habits. Highway driving causes less wear, while city driving in traffic can lead to faster deterioration. Don't skimp on this expense—regular replacement ensures better fuel efficiency, smoother operation, and overall peace of mind.
As a family car, I replace the spark plugs in my Mistra every 50,000 kilometers. This ensures no breakdowns on the road, affecting school runs or commutes. The 4S shop says delayed replacement leads to aged spark plugs, poor ignition, and increased fuel consumption—costing more in the long run. New ones aren't expensive; OEM parts plus labor cost just a few hundred. I also recommend checking the plug connections for looseness or carbon buildup as preventive maintenance. Remember to log the mileage as per the manual and set service reminders for convenience. Saves time and keeps you safe—don’t wait until the engine warning light comes on.
