Oil change interval Ram CTD .
I can't find the post but someone here questioned my 15,000 mile oil change interval , subject said his said 10,000 . I looked it up in my book and it does say 15,000 miles ! I can see some confusion...
Forum Discussion
rhagfo wrote:
Do any of you have your oil analyzed?
It would be interesting to see the results, as to the condition of the oil. I change my 2001 5.9 at 10,000 miles, test always come back good.
I always took Blackstone samples and 7k or so it was usually done. Of course mine had the 3rd injector event and some other smog items than yours. So you used a TBN test also?
