Wow New Plugs

My yukon was getting boring so i decided to put new plugs in not waiting 100k like they say you can. The new delco iridium plugs even at 60 buks well worth the money. I feel like im in one of my sports cars .

Have you seen an increase in fuel economy?

I'm at 100k and I need to change mine. Any paticular reason you went with the Delco Iridium's?

Thanks!

Havent had time to check mileage yet but i will . Have bought a lot of other plugs through the years never really been as happy not getting original equip and the iridium is the upgrade from original. The truck even idles smoother.