Groover wrote:
That is nice to know. I brought this up because my 2013 Freightliner warns against using the exhaust brake on slippery roads. I still feel that occasional manual application of the brakes on steep hills is not a terrible thing.
Unless your Freightliner has a 6.7L Cummins, then it does not have just an exhaust brake or it uses an exhaust brake in conjunction with an engine brake. It likely has an engine brake which is not the same as an exhaust brake. An exhaust brake is much smother and more gradual than an engine brake which almost fell like the wheel brakes at certain speeds. Exhaust brakes are good at keeping you at a certain speed while engine brakes are better at bringing you to a complete stop much quicker.