YACT: Sparkplugs

[Toastedlightly]

How often should I change sparkplugs and what do you look for as signs of wear?

 

[T2T III]

15,000 miles - or, longer intervals if you use platinum-tipped plugs. About the best way to look for wear is to compare the plugs that you pull out against the page in the automotive repair manual where they have several pictures depicting different types of wear and oil fouling.

 

[TechnoKid]

Coppers, change every 30k or sooner. Some platinums change 30k-100k. Iridium, every 60k-100k.

But really it depends on the engine and your driving habits, best way to tell is to look at the spark plug to tell if it is worn.

 

[Fingers]

Originally posted by: Toastedlightly
How often should I change sparkplugs and what do you look for as signs of wear?

Check your particular vehicals recomended maintnence guide. Would be good to use the recomended plugs too. The engineers that built your vehical may actually know.