https://www.autolite.com/products/spark-plugs/double-platinum
Double Platinum Spark Plugs | Search by Vehicle | Autolite
Our double platinum spark plugs maintain performance and fuel economy more effectively than standard and platinum spark plugs, leading to longer service life.
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https://www.boschautoparts.com/p/double-platinum-spark-plugs
Double Platinum Spark Plugs - Double Platinum Spark Plugs - Bosch Auto Parts
Bosch Double Platinum Spark Plugs are engineered for up to 3X longer service life.*
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