It is going to depend a lot on the frontal area of your rv. I have a 2016 Rockwood mini lite 1809s, approx. 5000lbs GVW. it is a aerodynamic as a brick. 2022 a trip from Calif. to Missouri and back with a 2021 3.0 averaged a hair over 13 mph. 2021 same trailer, trip to Montana from Calif in a...
Please keep us informed on how it handles with the new shocks. I have been thinking about doing this due to way my rig handles on rough and washboard roads. I have had 3/4 tons handle better on the same roads. I have the Z71 package.
Engine braking noise was non existent. The signs your are talking about mean "Jake" brakes, a true engine braking system, not exhaust brakes, that restrict exhaust flow.
I owned a 2016 2.8 Colorado for 3 years and pulled the same trailer that I now pull with the 3.0.
So I base my experience with actual use. The Colorado had a much better exhaust brake system, it worked so well that the members on the Colorado forum complained about as being to harsh. Their...
Took my rig to dealer to check on exhaust brake. They told me I did not have one.
I find that hard to believe. Called Chevy customer support, all they could do was to tell me what owners manual said.
Not Happy!
Maybe someone can enlighten me on the use of it.
Last pickup was a 2016 Colorado with 2.8 Diesel, loved the exhaust brake on it, it worked.
Pulling the same trailer (4500 lbs gvw) with the 2021 3.0 in the Sierra Nevadas last week
and the 2021 would gain speed going down hills that the...