Why do spark plugs have different numbers?

The heat range of a spark plug is the range in which the plug works well thermally. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.

Do E3 Spark Plugs really make a difference?

E3 spark plugs have a unique ground electrode that encourages more turbulence in air/fuel mixture. This leads to a more complete burn of the available fuel and the downstream benefits of improvements in power, fuel efficiency, and reduced emissions.”

Is it bad to have mismatched spark plugs?

Misfiring due to excessive heat, quenching, increased fuel consumption and even engine failure can occur from the use of incorrect or mismatched spark plugs, so it’s best to replace all of your spark plugs at the same time, and with the correct type of spark plug, to ensure smooth and consistent operation.

What makes a spark plug hotter or colder?

The major structural difference affecting the heat rating is the length of the insulator nose. A hot-type spark plug has a longer insulator nose. The insulator nose of a hotter spark plug has a longer distance between the firing tip of the insulator and the point where insulator meets the metal shell.

Can I use a different spark plug?

All spark plug manufacturers cross-reference their plugs with other brands so their brand can be interchanged with other brands. In other words, any brand of spark plug can be used in any vehicle make or model application assuming the plug has the correct dimensions, design and heat range.

How much horsepower do E3 Spark Plugs add?

By simply replacing your existing plugs with premium E3 spark plugs, your ride will have the performance it deserves. Horsepower gains of 4-6\% can be expected, depending on engine class size.

Do E3 spark plugs burn hotter?

Getting the correct heat range when you purchase new performance plugs for your vehicle is critical! Too hot of a plug will cause preignition, engine knock, and finally detonation. Too cold and the spark plug will cold foul resulting in an engine misfire. Do not drop the plugs on concrete!

What happens if you only change one spark plug?

You want all of your spark plugs to match and have nearly the same levels of electrical resistance as all of the other plugs. This make the engine run smoothly. If you had one spark plug firing properly and three that were not you could damage your engine as it would be a bit out of balance.

Can you use a shorter spark plug?

Broken electrodes A spark plug that is too long can cause extensive damage to your engine while a short spark plug can cause poor gas mileage and spark plug fouling.

How many different types of spark plugs are there?

Overall, you will find the four main types of spark plugs are copper spark plugs, iridium spark plugs, platinum spark plugs, and double platinum spark plugs.