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What sort of miles do these need replaced at? I have a 172, what would be the best make. Was thinking of Bosch super 4s. I think the standard fitted plugs are NGK.
would think it would be about 36-40k. dont gwet the super 4s, never heard a good word said about them from anyone other than bosch. Get NGKs, have used them in all the cars ive owned and never had a problem, and i drive my cars hard all the time.
If you look at the Dailogy, there are 2 kinds of sparkplug, one is Renault brand and one is NGK-R which I think both works fine, as long as the sparkplug gap are correct. I saw both from the dealer. I selected NGK-R and it seems they work fine.
I so not agree to change the plug every 72k. That is a lot. You should check your sparkplug every 9 months I guess, to make sure the plug are in good condition. Problem can tell from plug sometimes.