What is the difference between iridium spark plugs and platinum spark plugs?

1 Answers
DiEverett
07/29/25 7:31pm
Here are the differences between iridium spark plugs and platinum spark plugs: 1. Melting point: The melting point of iridium material itself is higher than that of platinum, so under continuous high-temperature operation of the engine, iridium spark plugs can still maintain a stable ignition state. 2. Hardness: Iridium spark plugs are significantly harder than platinum ones. 3. Durability: Iridium spark plugs are slightly better. Under normal conditions, their lifespan can generally reach up to 100,000 kilometers. Here is some information about spark plugs: Spark plugs can be divided into 4 major categories based on electrode material, namely nickel alloy spark plugs, iridium spark plugs, platinum spark plugs, and iridium-platinum spark plugs.
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