Spark Plug Heat Range Explained: What Every Rider Should Know
When it comes to your vehicle’s performance, spark plugs play a quiet but crucial role. Yet, one factor often overlooked by many riders and car owners is the heat range . In this post, we’ll get the spark plug heat range explained in the simplest terms possible, so you can make better choices for your engine. What Does “Heat Range” Mean? The heat range of a spark plug refers to how quickly it can transfer heat from the firing tip to the engine’s cooling system. Simply put, it’s a measure of the plug’s ability to stay at the right temperature during combustion. Manufacturers like NGK and NTK design different heat ranges to match various engines and driving conditions. A plug with a lower number on NGK’s scale is “hot,” meaning it retains more heat. A higher number means it’s “cold,” or it dissipates heat faster. Why Is Heat Range Important? Using the correct spark plug heat range ensures your engine runs efficiently and safely. If the plug runs too hot, it can cause pre...