How Often Should the Spark Plugs Be Replaced on an Arrizo 7?
3 Answers
Arrizo 7 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. It is advisable to follow the guidelines in the owner's manual. You may refer to the following maintenance standards: Platinum spark plugs should be replaced at 40,000 km, ordinary nickel alloy spark plugs at 20,000 km, and iridium spark plugs between 60,000-80,000 km. Spark plug working principle: The spark plug's ground electrode is connected to the metal shell, which is threaded into the engine block via the cylinder head. The insulator primarily serves to isolate the metal shell from the center electrode. The terminal nut is the part that contacts the high-voltage coil. When current passes through the terminal nut and center electrode, it ionizes the medium between the center electrode and ground electrode to generate a spark, thereby igniting the air-fuel mixture in the cylinder.
I remember when my Arrizo 7 was almost 3 years old, the spark plugs started having some issues. The engine felt slightly shaky when starting up, and fuel consumption was a bit higher than before. After taking it to the repair shop, I found the spark plugs were severely carbon-fouled and needed replacement. Generally, the original manual recommends changing them every 20,000 to 30,000 kilometers or every 2 years, depending on whether you use standard copper-core spark plugs or more advanced platinum ones. Last time I replaced them with copper-core ones, and the mechanic said these have a shorter lifespan, needing replacement around 15,000 to 20,000 kilometers. If you use iridium ones, they can last 40,000 to 60,000 kilometers. Driving habits also play a big role—frequent stop-and-go traffic in the city accelerates spark plug wear. So, I often remind myself to regularly check the ignition system to avoid breakdowns. After replacing the spark plugs, the car runs much smoother, accelerates more powerfully, and starts without hesitation.
Over the years of driving my Arrizo 7, I've learned that it's best not to delay spark plug replacement for too long. The owner's manual recommends changing them every 20,000 to 30,000 kilometers for safety. When my car hit 25,000 km, I noticed rough starts and slight vibrations at idle. The 4S shop technician found enlarged electrode gaps and advised immediate replacement. Spark plug type matters - the factory copper-core ones have shorter lifespans; I upgraded to platinum ones that last up to 40,000 km. Frequent city driving with stop-and-go traffic accelerates wear, requiring more frequent checks. Neglecting replacement risks higher fuel consumption from weak ignition and potential breakdowns during long trips. My advice: consult your manual, don't skimp on this maintenance item, and have technicians inspect them during service for peace of mind.
