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When to replace spark plugs?

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Old Mar 14, 2011 | 02:10 PM
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AR-15 DEUCE's Avatar
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Im over the top a bit..I change mine every oil change..hey for 8 bucks a set why not
 
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Old Mar 14, 2011 | 02:30 PM
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Change mine every Spring
 
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Old Mar 14, 2011 | 02:38 PM
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I change mine every oil change... $4 each.... cheap insurance.

My wife had one get stuck taking it out because they hadn't ever been changed by the previous owner. She was lucky, and I got it out by drenching it with WD-40 several times, and letting it soak.

I showed her the benefits of anti seize when the new ones were installed.
 
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Old Mar 14, 2011 | 03:06 PM
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10K seems to work well.
 
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Old Mar 14, 2011 | 04:33 PM
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here ya go,,,,http://www.harley-performance.com/ha...park-plug.html
 
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Old Mar 14, 2011 | 04:42 PM
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Denso iridium put in at first service and never change them.
 
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Old Mar 14, 2011 | 05:14 PM
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Got over 20k on my original 6r12's and they're still going strong. Prolly not a bad idea to change them soon. Still get 45 mpg 2 up fully loaded.
 
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Old Mar 14, 2011 | 11:56 PM
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Denso Iridiums here as well. Keep you informed.
 
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Old Mar 15, 2011 | 06:48 AM
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I change my plugs every 5,000 miles when I do the service. Cost less than $5 at the autoparts store.
 
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Old Mar 15, 2011 | 07:26 AM
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Considering the cost, I just go ahead and replace them every spring. They don't need it, but factoring in the price, why not? Cheap, easy, fast.
 
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