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oil on plugs

  1. 0

    Changed plugs - oil on plug collar and threads - no coolant or oil loss

    Hello, I have a 2008 Ford Exp Eddie B 4.0L with $115K miles on the motor. I changed the plugs today (they had 30K on them) and I noticed there was oil on the collar of the plugs and some oil on the threads. The electrode and surrounding area was clean - very clean with normal wear. And...
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