Types Of Spark Plug

 Types Of Spark Plug 

Spark plugs are categorized primarily by the material of their central electrode. The main types are copper/nickel, platinum, and iridium, each with varying levels of durability and performance. Copper is common, while platinum and iridium offer longer lifespans and potentially better performance. 

Here's a breakdown:

Copper/Nickel Spark Plugs:

These are the most basic and often the most affordable. Copper is a good conductor of electricity, but it erodes relatively quickly, requiring more frequent replacement. 

Platinum Spark Plugs:

These plugs feature a platinum disc or tip on the center electrode, which resists wear and extends the plug's lifespan compared to copper. Some platinum plugs also have a platinum disc on the side electrode for enhanced durability. 

Iridium Spark Plugs:

Iridium is a very hard and durable metal, offering even better wear resistance and potentially a longer lifespan than platinum. Iridium plugs also allow for a finer center electrode, potentially improving spark intensity and combustion. 

Double Platinum Spark Plugs:

These plugs feature platinum on both the center and side electrodes, offering superior durability and performance. 

Silver Spark Plugs:

While less common now, silver spark plugs were historically used in some high-performance applications due to their excellent thermal and electrical conductivity. They tend to wear out more quickly than platinum or iridium. 

Racing Spark Plugs:

These are specialized plugs designed for high-performance and racing engines, often featuring unique materials and designs to withstand extreme conditions. 

Ruthenium Spark Plugs:

A newer type of spark plug, ruthenium is known for its excellent ignitability and durability, offering a potentially longer service life than even iridium