How are spark plugs classified by material?

[PenelopeMarie]

Spark plugs are classified by material into: nickel alloy spark plugs, platinum spark plugs, and iridium spark plugs. Spark plugs can be categorized by shape into: standard spark plugs, electrode spark plugs, insulator tip spark plugs, seat spark plugs, and surface gap spark plugs. Spark plugs are divided by heat range into: cold spark plugs and hot spark plugs. The function of a spark plug is to generate an electric spark to ignite the gasoline in the engine cylinder. The structure of a spark plug consists of a slender metal electrode passing through a ceramic insulator. The lower part of the insulator is surrounded by a metal shell, which is screwed into the cylinder head with threads. A welded electrode at the bottom of the metal shell forms a ground connection with the vehicle body.

[Edwards]

Spark plugs are primarily categorized by material into three types: copper-core, platinum, and iridium. Copper-core plugs are the most common and cheapest, frequently encountered during car repairs. They offer good conductivity but wear out easily, typically requiring replacement every 60,000 kilometers, making them suitable for older vehicles or budget-conscious owners. Platinum plugs are more durable, with strong corrosion resistance, lasting around 100,000 kilometers, and provide more stable sparks, ideal for city driving. Iridium plugs are premium options, featuring high ignition efficiency and extended lifespan, capable of exceeding 120,000 kilometers. Many newer vehicles use them to enhance fuel efficiency. During maintenance, it's crucial to select the correct matching type and avoid mixing them. I recommend checking spark plug conditions annually to prevent sudden failures that could cause engine misfires.

[EzraRose]

Spark plugs come in copper core, platinum, and iridium materials. I've been driving for over a decade, so I know this well. Copper core plugs are economical with low maintenance costs, but have a shorter lifespan, especially prone to failure under high temperatures. After replacement, you'll notice a slight power rebound. Platinum plugs strike a balance, extending maintenance intervals and saving garage time, but they cost twice as much—budget-conscious drivers should think twice. Iridium plugs are more reliable, providing stronger sparks that help improve fuel efficiency and reduce emissions, making them a worthwhile long-term investment. Don't overlook routine maintenance—I regularly clean carbon deposits to protect them. When replacing, it's best to visit a professional shop to ensure proper installation for peace of mind.

[DelAngelo]

Spark plugs come in different materials like copper core, platinum, and iridium. As a car enthusiast who loves modifications, I'm all about these details. Copper core plugs are cheap but offer average performance, rarely used in racing scenarios. Platinum plugs are more stable with extended lifespan, suitable for regular driving. Iridium plugs stand out with their efficient ignition, boosting engine output significantly—I noticed quicker throttle response and smoother handling after switching to them. Regular spark plug cleaning can help prevent malfunctions.