What is the original spark plug brand for the Envision 20t?
3 Answers
The original spark plug brand used for the Envision 20t is NGK's ILTR6M9G-94489 spark plug. Spark plug replacement cycle: 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. You can refer to the following standards 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. Spark plug replacement steps: Open the engine hood, lift the plastic cover of the engine, and remove the high-voltage ignition wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for external debris such as leaves or dust and ensure they are thoroughly cleaned. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage ignition wires according to the firing order and secure the cover.
I've been driving the Envision 20T for a while now, and the original spark plugs are NGK brand, with the model number roughly ILTR5A-13G, which is quite common. These little spark plugs are crucial for the engine's ignition efficiency. I replaced them once after driving about 40,000 kilometers, and I noticed the car's startup noise became quieter, and acceleration felt smoother. If you suddenly notice increased fuel consumption or unstable idling during daily driving, it's often a sign of aging spark plugs. I recommend checking them every 30,000 kilometers. Don't underestimate their size—failing to replace them can drag down the entire engine's performance. Buick's original parts are of good quality and hassle-free to use, so don't skimp and buy cheap off-brand ones when replacing them. Proper spark plug maintenance can extend your car's lifespan. When I wash my car, I often check around the cylinder head for any signs of leaks or corrosion—safety first. Using higher-octane gasoline during daily driving can also help reduce wear.
As someone who enjoys tinkering with cars, I remember the original spark plugs for the Envision 20T are ACDelco, the OEM supplier for GM. I've replaced them myself several times, and the steps are simple: first disconnect the negative battery terminal, remove the ignition coils, and use a socket tool to unscrew the old plugs and install the new ones. Don't buy cheap tools, or you might damage the threads. The quality of spark plugs directly affects ignition timing, and after replacing them, I noticed a significant reduction in engine noise. The recommended maintenance interval is to check them every 30,000 to 50,000 kilometers. Signs of wear include sluggish acceleration and start-stop issues. Let's talk about other brand options—NGK is also compatible, but OEM plugs are the most stable. When changing the oil, it's a good idea to check the spark plug gaps as well. Accumulating some DIY skills can save money and expand your knowledge.
