Quote:
Originally Posted by brulaz
I bet the Sierra's 6 speed automatic is nice in the mountains as well.
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I know it is there, but I do not feel any difference.
I suspect that if I was towing heavier then it would be more noticeable.
What I do notice about the 6 speed transmission is when it automatically downshifts while going downhill to engage engine braking. I no longer have to do that. Just set it in drive and forget it.