5 years How often you change the spark plugs in your vehicle depends upon the type of plugs you use and how you drive the vehicle. Naturally, better plugs and easy driving conditions are optimal. E3 automotive spark plugs offer a 100K mile warranty, or 5 years from the date of purchase.

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."

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.

“I noticed a difference right away after installing these plugs in my truck. The plugs I took out had only 5000 miles on them so they were not worn. After installing the E3′s I noticed the idle smoothed out and the truck is running better. Gas mileage has went up 1 mpg.

Even if you're not having problems, you'll still want to change spark plugs out at every 30,000-mile interval. For most drivers, that will mean that you're due for spark plug service once every 2-3 years!

Platinum spark plugs last longer and typically run hotter. That means these spark plugs reduce carbon buildup in your engine. Since these are made with hard but high-quality metal, you can drive about 100,000 miles before needing to replace platinum spark plugs.

With decades of experience in spark plug engineering and the automotive aftermarket, the principals of E3 Spark Plugs realized that the key to producing a better spark plug did not lie in the use of fancy metals, such as iridium or platinum.

Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.

Tailored for high hp boosted (turbo, nitrous or supercharged) applications, the plug features E3's patented diamond-shaped ground electrode for maximum combustion and edge-to-edge spark, as well as a resistor to keep stock electronics functional. The E3.

Use the socket wrench to unscrew the spark plug by turning it counterclockwise. Once removed, check the electrode tip and ceramic insulator for build up or wear. Spray the dirty lawn mower spark plug with brake cleaner and let it soak for about ten minutes.

Age and Mileage Plugs are designed for long-term durability, and could well outlast your car. However, they experience wear with engine use and are more vulnerable to car usage than to age, so mileage is an important factor when thinking about a replacement.

50,000 kilometres Most manufacturers recommend replacing spark plugs every 50,000 kilometres, but spark plug quality varies. Some last around 130,000 kilometres, while cheap plugs made of copper may last approximately 40,000 kilometres. “Extended life” spark plugs made of more resilient metals can last up to 160,000 kilometres.