Pros and Cons of an Iridium Spark Plug
Replacing your old set of traditional spark plugs with an iridium spark plug set can be one way to get better performance out of your car. Many people who are keen on keeping their cars up-to-date, and on giving them the best efficiency possible, prefer to use iridium spark plug sets, but there are also some downsides which can make these spark plugs seem like a lot of effort for very little gain.
Advantages of the Iridium Spark Plug
Iridium spark plugs are supposed to have several advantages over other forms of spark plug. They are designed to give a better performance, although they may only give a small improvement to start with. The main advantages come with use. Firstly, the iridium spark plug will be longer-lasting, meaning that you won't have to change the spark plugs so frequently. They are also consistent, which means that there will be no noticeable deterioration, unlike copper spark plugs.
Disadvantages of the Iridium Spark Plug
The biggest downside to the iridium spark plug is the cost. They are generally more expensive than standard spark plugs, although this is somewhat offset by the longevity of the iridium version. There may also only be a minor improvement in the function of the car, meaning that you have to pay a lot for little return.