What is the spark plug model for the Great Wall M4?
2 Answers
The spark plug model for the Great Wall M4 is Torch K7RTC0. Spark plug replacement interval: Under normal maintenance conditions, replacement is recommended after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type. It is advisable to follow the user manual. The following standards can be referenced for maintenance 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 to 80,000 kilometers. Effects of a faulty spark plug: If a spark plug is damaged, it can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most significant impact is difficulty in ignition, affecting the normal operation of the vehicle. Severe spark plug erosion, including scarring at the top, damage, or melted and eroded electrodes, indicates that the spark plug is damaged and should be replaced.
My Great Wall M4 has been running for five years, and it originally came with Torch brand K7RTI nickel alloy spark plugs with a heat rating of 7. Last year, I replaced them with the same model at the repair shop, and the mechanic said most older M4s have this configuration. However, the newer models seem to have been upgraded to K7RIU iridium plugs, which offer higher ignition efficiency. If you're replacing them yourself, you'll need a 16mm socket and should handle the ignition coils gently. When buying parts, make sure to double-check the engine model—our 1.5L GW4G15 engine will suffer from skyrocketing fuel consumption if the wrong model is used. Once, I mistakenly installed Bosch FR8NP plugs, and the cold starts made it shake like a tractor.
