Spark plugs suggestion

[sickpuppy1]

Well, I believe RedRide is acccurate to an extent, plugs do go bad and they do get weaker over age. I wont dispute that. But I think it more due to quality of materials used and other factors such as fuel quality and driving style. My comment earlier about how we used to change points, plugs cap and such was true to because of the factors I just mentioned. Back when plugs were copper only they DID wear out since the copper was ate away by they constant sparking eating away at the metal. inefficient burning of fuel due to old school carburetors caused them to get carboned up quickly. I just think that with the increase in material quality of the plug, better control of fuel due to EFI and electronics and moderation of driving style (saving fuel) that Iridium plugs can go 100k with a very minimal lose of spark integrity. Which is not to say that there isnt some lose of spark quality over that time, but the amount is so small that a daily driver scenario wouldn't perceive the difference. If someone is doing rally driving or something, they would be more inclined to notice it I would think.