With the IR plugs, you can not base its performance on appearance. Sometimes you can extend their operation by a quick pass through the flame on an Oxy/Acet torch.
The Honda is a fantastic machine but the plugs will foul out if you short cycle it when the engine is cold and the ECM is in the cold enrichment mode [until the oil temp comes up].
Also make sure you are not overfilling it with oil, which even the dealerships do.
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