Originally Posted by RobyD
So Scooter, you think downshifting is bad for wear on the tranny? How about on the motor?
Yes I do...manual shift on automatics transmissions are a marketing gimmick. Your service brakes are capable of slowing down this vehicle without the assistance of the engine or tranny. Many of us are getting 60,000 miles plus on the OEM brakes/rotors.
Now if you are hauling 80,000lbs and the engine has a dedicated engine brake with a low, med and high setting than yes use the engine brake. Rotors/drums/pads on a Freightliner are pricey. You can do a brake job on the Grand for $350, maybe less if you turn the rotors.
Hopefully that makes sense.