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Old 08-03-2013, 07:26 PM
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DWWHemiguy DWWHemiguy is offline
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Default Spark plug question and theory

Let me start with the question. Is it really important to change the plugs at 32k as the manual states? I have an 07 Charger R/T and I changed them at 30k and again at 60k. Both times the plugs that came out looked almost new. They are much easier to get to on the Charger. The Ram looks more difficult. My point is that I really believe in proper maintenance, but is 32k overkill?
My theory is that modern engines have a pcm that constantly monitors and adjusts the tune to keep it running efficiently. Back in the day a vehicle would get out of tune and plugs got fouled. I'm not trying to be lazy, but it looks like a harder job than the Charger.
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