What is the difference between iridium and platinum spark plugs?
1 Answers
Iridium and platinum spark plugs have the following differences: 1. Melting point: The melting point of iridium material is inherently higher than that of platinum, so under continuous high-temperature operation of the engine, iridium spark plugs can still maintain a stable ignition state, and their discharge performance is also relatively better. However, this does not mean that platinum spark plugs are lacking in this aspect; under normal conditions, they also perform excellently, but iridium spark plugs are more focused on stability. 2. Hardness: Iridium spark plugs are significantly harder than platinum ones, so naturally, iridium spark plugs have better durability. Of course, platinum spark plugs are not inferior either; under normal conditions, their lifespan can generally reach up to 100,000 kilometers, so there is no need to worry too much about this issue.