.

Similarly, what happens if you use a hotter spark plug?

A plug with a hotter heat range (lower NGK numbers) retains more heat, so it can burn off deposits better, and therefore resists fouling. However, in the wrong conditions a plug with a hotter heat range can retain too much heat, and cause detonation or actually melt the electrode.

what will a colder spark plug do? A colder plug transfers heat faster while a hotter plug is slower. The goal is to keep the cylinder temperature between 550*c and 800*c which is about 1020*f to 1470*f. This temperature range is cool enough to prevent knock and not melt the plug tip, but still hot enough to burn off the carbon and prevent fouling.

Herein, should I use a hotter spark plug?

Use a hotter heat range for rich air/fuel mixtures. Advanced ignition timing: In general, advanced ignition timing will raise the spark plug temperature. For this reason, you may need to go with a colder heat range to prevent knock or pre-ignition.

When should you run a hotter spark plug?

Use a colder heat range for leaner air/fuel mixtures. Rich air/fuel mixtures can cause the plug temperature to dip, allowing carbon deposits to build up on the tip. Use a hotter heat range for rich air/fuel mixtures. Advanced ignition timing: In general, advanced ignition timing will raise the spark plug temperature.