CamperMike
Senior Member
Just changed the plugs on mine tonight at 99k. They didn't look bad but at 100k internal it will be as long time before i touch them again. Rock auto kinda messed up my order though. They sent me the 16 ngk plugs for the Ram but they also sent 4 different NGK iridium plugs i didn't order that are the wrong part. Luckily i noticed there was an extra box and checked the part numbers. It would have sucked to find out that i installed the wrong plugs especially in the back cylinders...
