At 60K miles, I thought I'd change my plugs in my 04 GMC Sierra 1/2 ton. Its seen some heavy work plowing over the winter, and I'd like to get them out before they corrode in the heads.
Does anyone have any recommendations on plugs for this animal? The local parts store recommended iridium plugs, but I'd sacrifice longevity for performance. Would copper core plugs perform better? Would they work well with the individual coils above each plug? What heat range?
Thanks!
Does anyone have any recommendations on plugs for this animal? The local parts store recommended iridium plugs, but I'd sacrifice longevity for performance. Would copper core plugs perform better? Would they work well with the individual coils above each plug? What heat range?
Thanks!