IRIDIUM VS. PLATINUM SPARK PLUG: WHAT IS THE DIFFERENCE?

Spark plugs allow the combustion process to take place inside the vehicle, and an engine will give more power if there is better combustion. This will depend on the spark that the spark plug electrodes have, therefore, the different options that exist on the market must be taken into account. Regularly, in the market, we find three basic materials that are platinum, iridium and copper.

However, there are some differences when it comes to sparking plugs. Some are more efficient and work better than others. Below you will find out what is the difference between iridium spark plugs and platinum.

LIFESPAN

Another major difference between iridium and platinum spark plug is the lifespan. The lifecycle of iridium spark plugs is longer than the platinum ones. These spark plugs can complete 8,000 km without an issue.

On the other hand, platinum spark plugs are a little better than copper spark plugs and can run about 4,000 km. This is one of the differences between iridium and platinum spark plugs.

PERFORMANCE

When it comes to performance, iridium performs better than other spark plugs. The spark plugs that are made of other metals can cause a shaky engine; whereas, iridium spark plugs can make the ignition smoother. If you follow the proper car maintenance checklist , the iridium spark plugs can perform better for your car.

 In comparison to Iridium plugs, platinum spark plugs are not very reliable. Platinum plugs can cause a jerky engine start which ultimately affects the performance of the car.

Also, you must know the life expectancy of car parts to run the vehicle smoothly.

MELTING POINT

The melting point of Iridium is higher than platinum; with values ​​around 2400 °C and 1760°C respectively. The higher melting point means that iridium caps can be hotter than platinum caps. While hotplugging is not always desirable, it is best to drive it around town.

VOLTAGE

Another interesting advantage that iridium plugs offer is that they require less voltage for the spark to jump, and these tend to work quite well on cold days. 

COST

Since iridium spark plugs boast several advantages, they are a little pricey than the regular copper and platinum spark plugs. For instance: 

  • The price of a platinum spark plug starts from USD 36
  • The cost of an iridium spark plug starts from USD 50

However, it is important to note here that the prices may vary considering the makes and models of the vehicle.