Originally Posted by Steve Rankin
For us, it depends on whether we feel like we have a need to go faster or slower. While I normally cruise at 60-62 (about 1500 RPM) taking the grades in 5th at 1850 RPM, last Fall we had a need to get from Billings, Montana to south of Albuquerque, New Mexico in a day. Set the cruise at 85 and let the Cummins handle the rest.
We found a couple of grades that slowed us to around 80.
Ah, the luxury of a one ton diesel truck.
2018 Forest River Wildwood X-Lite 201BHXL, 2015 F150 XLT 5.0L 4x4
2021 BC Bushwhacker Plus 17BH, 2010 Toyota Highlander SE 3.5L AWD