Auto Engine Break
I have a ‘20 Magnitude SV34. When towing I use the Tow Haul Mode. I only engage the Engine Brake (Automatic) when I am traveling through hills / mountains.
You should use both together. There is a Manual and Automatic Engine Brake mode for the Ford Super Duty 6.7L. The Automatic mode remembers your speed and holds it there. Manual mode is more aggressive and engages as soon as you remove your foot from the accelerator.
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