Dodge Challenger Forum banner
  • Hey everyone! Enter your ride HERE to be a part of October's Ride of the Month Challenge!
1 - 2 of 2 Posts

·
Registered
2014 Challenger RT
Joined
·
64 Posts
Discussion Starter · #1 ·
I was looking at the manuals for my wifes 13 Hemi Durango and my 14 Challenger RT. The 13 5.7s have a 30,000 mile interval and the 14s have a 100,000 interval. I've looked at both plugs, the only difference is that the 13 plug is platinum and the 14 plug is iridium. So my question is, can I use the iridium plugs for the 14 5.7s in my 13 5.7 and run them for the same interval as the 14 engine?
 

·
Super Moderator
Joined
·
17,312 Posts
The '09-'13 5.7 plugs are conventional copper / nickel core - thus the 30k interval.

The '14 iridiums may work in the earlier models providing it has the correct heat range and thread reach.
 
1 - 2 of 2 Posts
Top