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2010 Ford Mustang Spark Plugs

Tiny
ZIPPOC04
  • MEMBER
  • 2010 FORD MUSTANG
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 13,500 MILES
At 13500 I replaced my spark plugs as preventative maintenance as well as ton keep the plugs from seizing. Is there any harm in not using Motocraft plugs. I realize the engine may run best on OEM plugs, but is there any harm in using the NKG Iridium IX plugs that I just installed. My justification in not using stock plugs is the longevity of the iridium. I have no preference of the brand, I just know NKG is a good brand for plugs. The new installed plugs are the correct heat range and have been gapped to the car's specifications. Thanks!
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Friday, July 23rd, 2010 AT 10:47 PM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

The Iridium plugs are a perfect match for your engine, but you should not adjust the gap on iridium plugs, they are pre set and should not be touched.

Mark (mhpautos)
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Saturday, July 24th, 2010 AT 6:21 AM
Tiny
ZIPPOC04
  • MEMBER
  • 2 POSTS
Thank you for the answer. The plugs were gapped at.03" when I got them (maybe messed up during shipping) so I widened them to the car's specifications of.052"-.056. Thanks again for the help.
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Saturday, July 24th, 2010 AT 8:07 AM

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