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How often do you change your spark plugs?

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JPSmit

JPSmit

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Depends on how often things are beat against them. Usually I just straighten them back out.:highly_amused:
 
I just always use NGK BP6 .. I don't change them for autolite, or champion. :highly_amused:
 
About every 30,000...unless they aren't NGK's. If not change immediately!

Kurt
 
In racing Spridget, about 2 or 3 times a year. In street MGB, about every two years. In Miata I just did it for the first time in 13 years (at 110,000 miles).
 
Just joking on the NGK's though i do like them best. I've had good luck with autolite and motorcraft but not with champion. Worst plugs I ever got were AC's. Car didn't run right so to try and find the problem we tested the plug's and half of them were bad with less than 50 miles on them.

Kurt.
 
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