Review on Bosch Automotive (9602) Double Iridium Fine Wire OE Spark Plug - Single by Bohyun Rossetti

Perfect for my car. Although advertised as not requiring anti-seize, it is still useful to use to protect engine block threads from corrosion. I noticed that after installation, the car began to work more smoothly and quietly. My throttle body failed and my system ran rich for a while and my old spark plugs burned wide open. Can't comment on longevity or fuel economy but I'm hoping they will increase mileage over what they have now. Also some tape or something similar would be very nice on both ends of the shipping boxes. 1/3 of the spark plugs I ordered rolled out of their boxes but they all had cardboard sleeves on the ends of the electrodes to protect them.