sandawilliams
Senior Member
- Joined
- May 29, 2012
- Posts
- 2,799
- Reaction score
- 5,528
- Location
- Pueblo West, Co.
- Ram Year
- 2021
- Engine
- 6.4 hemi
My previous spark plug changes for the 5.7's were supposed to be done every 35k miles. After the first change the plugs still looked new and decided that was excessive. Now my 6.4 shows to change them every 100k. There is no mention of hours. My truck has 74k on it with 1844 hours. Most of which is towing fairly heavy. That indicates an average speed of 40 MPH. All things considered is it time to change the plugs? Just pull one as an indicator of condition?
thanks
thanks