Forum Discussion

Brisk's avatar
Brisk
Explorer II
Aug 26, 2016

Ram owners. What gear while towing on highway?

My truck is in Sig. With my high profile fifth wheel (11-14k loaded depending on trip) my truck likes to hunt between 6th and 5th (68rfe) when on the highway. Do you guys lock out 6th and run in 5th o...
Tow Vehicles
ShinerBock's avatar
ShinerBock
Explorer
Aug 27, 2016
I lock out 6th when towing that heavy of a load and just cruise at 65-70 mph. According to Cummins Powerspec, your most efficient rpm towing in the 6.7L is between 1,700 and 2,100 rpm which is right where towing in 5th gear puts you at that speed.

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