Spark plug maintenance is nothing to stress about

Engine performance begins and ends with a spark.

Spark plugs have to deliver a high-voltage spark with split-second timing, thousands of times a minute under extremely varying operating conditions. But according to technicians, even though a spark plug is exposed to severe stress, there's no need to worry if you've got the right plugs.

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One of the most economic ways to help maintain an efficient, powerful engine and avoid wasting fuel is to change spark plugs at regular intervals. As spark plug electrodes wear, the voltage required to jump the gap increases. Under hard acceleration, high speeds or heavy loads, misfires can occur and hence, waste fuel. Also, a rich fuel mixture can foul the ceramic insulator on the spark plug tip.

So, take the time to ensure proper spark plug maintenance by following these tips from Autolite engineers:

• Change all spark plugs simultaneously.

• Be sure the engine is cool before beginning spark plug replacement.

• Gather all essential tools and products needed for the change, including replacement spark plugs and mechanics gloves.

• After final assembly, look to make sure all wires are properly routed. They should not be lying on the hot manifold or in the way of other objects that can cause damage.

• When looking for the right spark plugs, it's best to choose a product that provides better overall ignitability and durability. Choose a plug with increased flame kernel size which will ignite more gas and air mixture inside the cylinders to deliver better performance.

Spark plugs should be replaced at least as often as the vehicle manufacturers' recommended change interval. We suggest you refer to your vehicle owner's manual or refer to a reputable automotive service facility for information on appropriate mileage service intervals. Typical spark plug replacement intervals range between 30,000 and 100,000 miles, depending on your vehicle and the type of spark plug.

To find a full line of premium application-specific spark plugs that meets or exceeds original equipment design and performance criteria, just log on to www.autolite.com.