Spark Plugs
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Support Consistent Ignition With INFINITI Spark Plugs
Spark plugs ignite the air and fuel mixture inside engine cylinders. This process occurs thousands of times during normal driving. At INFINITI of Orland Park, spark plug condition is often discussed during engine service visits. Wear develops naturally with mileage and heat exposure.
What Spark Plugs Do in the Engine
Spark plugs create a controlled electrical spark that starts combustion. Consistent firing supports smooth engine operation. INFINITI vehicles such as the Q50 and QX80 use plugs specified for engine design.
Why Spark Plugs Wear Out
Electrodes erode from repeated electrical discharge. Carbon deposits may build up over time. Driving habits and fuel quality influence lifespan.
Why OEM Spark Plugs Are Preferred
Genuine INFINITI spark plugs are manufactured to meet factory heat range and gap requirements. Lower-priced aftermarket plugs may vary slightly in construction. Proper ignition performance also supports the ignition system. INFINITI of Orland Park offers OEM spark plugs designed for reliable combustion and consistent engine response.