What may result from using the wrong spark plugs in an engine?

Using the incorrect spark plugs in an engine can lead to misfires, poor performance, or even engine damage. Spark plugs are specifically designed to operate at certain temperatures and pressure ranges, and they must match the specifications of the engine they are used in. When the wrong spark plugs are installed, they may not ignite the air-fuel mixture at the right time or may not create a proper spark at all. This can cause misfiring, where the engine struggles to run smoothly, leading to performance issues such as rough idling, reduced acceleration, and decreased power output.

In some cases, the wrong spark plugs can cause excessive heat build-up or improper combustion, which can eventually lead to engine damage due to detonation or pre-ignition. Over time, this might result in costly repairs if the damage to the engine components is significant. Therefore, it is critical to always use the correct spark plugs as recommended by the vehicle manufacturer to ensure optimal engine performance and longevity.