Dodgemach, or anyone what are your thought on standard or platinum spark plug replacement at 30,000 mile service?

Is spark plug replacment a thing the average owner can do or should one need to have work done at the dealer?

Buddy in KY

 

You can do it yourself, not that hard. Standar copper plugs go to 30K, platinum plugs go to 60K and double platinums go to 100K.