Forum Discussion
ShinerBock
Oct 03, 2019Explorer
ib516 wrote:
8.4 mpg with the 6.4L Hemi (computer 8.6)
11.6 mpg with the 6.7L Cummins (computer 10.9)
With 87 octane being $2.30 where I live, that is $.26 per mile. However, if you use the recommended 89 octane in the 6.4L which currently costs $2.60 a gallon, then it is $.31 per mile. Diesel is currently at $2.70 here so that is $.23 cost per mile.
About Travel Trailer Group
44,053 PostsLatest Activity: Nov 17, 2025