What is the original spark plug model for the X-Trail?
2 Answers
The spark plug model for the X-Trail 2.0L variant is the standard DILKAR7D11H, while the 2.5L variant uses the standard FXE20HE11, both featuring double platinum material. Spark plug replacement interval: Under normal maintenance conditions, replacement is recommended every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it's advisable to follow the user manual. Reference maintenance standards: Platinum spark plugs should be replaced at 40,000 km, standard nickel alloy spark plugs at 20,000 km, and iridium spark plugs between 60,000-80,000 km. Symptoms of faulty spark plugs include: difficulty starting, reduced power, excessive exhaust emissions, and increased fuel consumption. How spark plugs work: Under high voltage, the air between the spark plug's center electrode and side electrode rapidly ionizes, forming positive ions and negative free electrons. When the voltage reaches a certain threshold, the number of ions and electrons multiplies like an avalanche, causing the air to lose its insulating properties and creating a discharge channel - a phenomenon known as "breakdown." This produces a luminous gas body (the "spark") accompanied by thermal expansion and a cracking sound. The spark temperature can reach 2,000-3,000°C, sufficient to ignite the air-fuel mixture in the combustion chamber.
As a seasoned car enthusiast who frequently tinkers with vehicles, I drive a 2014 Nissan X-Trail 2.5L 4WD model. The factory spark plugs are NGK OEM LZKAR6AP-11, which is quite a unique specification—12mm thread diameter, heat range between 6 and 7, and an electrode gap of 0.8mm. Last time at the repair shop, the mechanic mentioned that pre-2017 2.0L engines used the FXE20HR11 iridium-platinum plugs for higher ignition efficiency. When replacing spark plugs, it’s crucial not to mix up the models, as the old and new versions are entirely different. Post-2021 three-cylinder 1.5T engines now use NGK SILZKAR8B8S. If your car experiences jerking or a sudden spike in fuel consumption, it’s likely the spark plugs are due for replacement. It’s recommended to change them every 60,000 km with the factory-specified model—using aftermarket parts could risk damaging the ignition coils, which isn’t worth the cost-saving.
