Forum Discussion
DanNJanice
Jan 31, 2017Explorer
I have a Ford F250 with the 6.7PSD. I lock out 6th gear any time I tow, unless I am on dead flat interstate. I see no reason to make the engine lug or make the tranny shift unnecessarily. It does not hurt any engine(including diesels) to run it a few hundred RPMs higher and probably is good for it.
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