when to replace plugs? - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #26  
Old 07-28-2008
D.
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I'm not going to even comment on Mr. Ayers non-sense ( This was a spark plug thread turned into a GM TSB thread.. ) anymore but from my own observations..

The factory Platinum plugs.. Their good for maybe 50,000. I've changed some on those from the Buffalo area's trucks. None had power adders or even cold air intakes. All were pretty bad.

I use copper plugs myself, a stage or 2 colder ( Nitrous/Bottle fed ) . No ' factory ' or ' non specialty ' Platinum plug is really going to last with forced induction that I have seen *personally*.
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  #27  
Old 07-28-2008
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Bob, almost every single engine component on the ranger can be upgraded to something better.

Why would spark plugs be any different?
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