Review on π₯ DENSO #3417 Iridium LONG LIFE Spark Plugs - SK16HR11-4 PCS Brand New, High-Quality Performance Plugs by Oscar Thompson
Defective or fake spark plugs?
Purchased 4 Denso #3417 Iridium Spark Plugs from SPEEDSTAFFSALES. I installed them in March 2020. The car now fires with new spark plugs after only 5,349 miles. I checked the candles, the gap on them opened up to 0.075, 0.076, 0.070, 0.073 versus the original 0.043 gap I set them at. The center electrode is burnt out. These spark plugs are defective or counterfeit.
- Nice package
- Can't remember
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