When I went to buy new spark plugs I asked 5 or 6 places which they recommend and they all said the NGK Iridium spark plugs are the best. According to the box they claim to use less fuel, smoother idle, and have a longer life. Only time will tell how great they are, but immediately after installing them into my vehicle it does seem to idle smoother and there are no issues with starting the vehicle.
NGK Iridium Spark Plugs
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