Change 328 Sparkplugs ....or not?

Why bother if everything is OK? Those are the preferred plugs in 328's.

DAve

 

I'd say "no" too -- (on modern models with electronic ignitions) changing them at ~15K miles would still be very conservative.

You need to drive more!

 

It has become rather common today to strip a sparkplug hole, or worse, to actually twist the threaded end of the plug off in the head. The only remedy then is to remove the head and fix it.

If you are planning not to change your plugs for a long time, you should put some kind of aircraft grade anti-sieze on them before you screw them in.

They do deteriorate. Pull them out after a while and you can always find one or two that leaked gasses and browned the upper insulator.

 

Because that's the way we treat Ferraris. We over-maintain them cuz we lov em and need to continually bond with them and give them gifts.

Note that the time to replace new parts with newer parts generally coincides with weather conditions in which a distant cloud makes driving questionable.
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I would pull them all out and check them. If they all look ok and are not worn out, then refit with a 'dab' of anti-seize on the threads.

 

6-7k miles? Half the plugs we replace at 30k miles I consider a waste. People look at me funny if I don't replace them though.

 

No drama. More money in your back pocket.