New to me a month ago this is different than the Cat in my prior rig.
it's an 8.3 ISB Cummings, was up in rt 64 N on 81 and going over some hills.
With cruise on it went really nice, better than I can do it myself.
But when I lost momentum up a grade due to traffic it was just dog slow in 4th doing 45 then 50 ish but giving it more throttle made no difference.
that that was strange?
Other than that all went great locked in at 65 for 600+ miles from Savannah Ga
Up a grade it would drop to 63 sometimes 62 but recovered to speed.
then I tried using the exhaust brake, that was smooth nothing like the old Cat in my HR that would slam into lower gears.
My question using it in conjunction with cruise down grade it would get up to 68-70.
Is the brake supposed to limit that?
What happen in real grades like out west, will it not slow down?
Should I turn off cruise down hill?
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