Use of cruise control always “best “ for repeat results.
One “thinks” they can beat it only to learn the effort wasn’t worthwhile. Takes away from energy wanted for all other driving tasks.
For others not familiar with CTDs:
On our trucks, just set for 62-mph to get best 64-‘mph results. It’s an assertive, almost aggressive CC as the loads expected for the truck are high. IOW, it’ll do a better job by itself at 62 versus trying to run 64 on the foot.
High cylinder compression (aided by TC) makes Hill-flattening easy. The truck just walks it. The temptation is to cancel cruise to offset this. Easier to back off 2-mph for “best” results.
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