I have a 2017 z71, CCLB, 80,000 km’s. No issues except for typical recalls. Lifetime average of 9.8 L/100 km’s. Used for city driving, towing the holiday trailer and the odd trip down the west coast.
2.8 Duramax: Love it or Hate it?
After reading through a number of different posts and comments on numerous topics, I have found a common theme. And perhaps you get this with any vehicle, I'm not sure. I wouldn't think you should get it with a brand new one however.
But that common theme is either; you absolutely love your truck and have had no issues with it after a couple of thousand miles, or; you absolutely hate it, or are at least very frustrated, and have had numerous issues within the first thousand miles.
My question is who has a good one and who has a bad one. Also, when did you buy your truck and is a Chevy or GMC. And if you have problems with it, what are they. Thanks.
But that common theme is either; you absolutely love your truck and have had no issues with it after a couple of thousand miles, or; you absolutely hate it, or are at least very frustrated, and have had numerous issues within the first thousand miles.
My question is who has a good one and who has a bad one. Also, when did you buy your truck and is a Chevy or GMC. And if you have problems with it, what are they. Thanks.
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Just bought a 2020, 4000 miles and no issues, but I wouldn't expect any from a new vehicle. So far I like it.
Hate it untuned but love it tuned 
Finally got it! 2020 CCSB Z71 with the Duramax baby. I LOVE IT!!!! 4300 miles since April 30 and avg ~29mpg on the open road and ~20 around town.
I love it I just bought a 2019 Colorado and I absolutely love it I am a big guy and fit ok in this truck now its deleted and I am loving it.
i bought a left over 2018 in nov 2019.its a red 4x4 longbed. it has 15,000 miles on it now and has been flawless. up to 32 mpg on highway and when towing a 18' enclosed motorcycle trailer loaded; it gets 18-19 mpg.strangely it gets better mileage towing in the mountains than on flat ground.i think the reason is it puts out so much torque it doesnt downshift or strain going up mountains and mostly free wheels going down them.resulting in better mileage than on flat ground. would like to see tow mirrors and i find the knob on the dash for the 4x4 has to be kept in view as your knee easily moves it on entry and exit. i am 6'; 195lbs not big nor small.i find it pretty comfortable.i find compared to full size gas rams, and gm's i have had;my fuel bill is about cut in half( NICE)
I bought a 2020 3 months ago and can't seem to get to like it. It is a nice looking truck with the Trail Runner package, just can't seem to get near the sticker MPGs, while coming from my previous gas Tacoma the acceleration is sluggish. I will keep it over the summer to at least get some payback on the new car depreciation, but planning to sell in the fall and get another Tacoma. I also think it is BS they sell these with the front air dam and expect folks to actually go off road...
As I follow up, since the Colorado diesel looks to be discontinued after 2020, do folks think that will be better or worse on re-sale values?
It's slated to built through year 2023. Diesels are not designed to be fast they're designed to be strong. They historically have always brought more at resale then a gas version of the same vehicle. I am curios as to what type of driving you do. For the most part if you short hop all the time the mileage will almost be no different then any other vehicle. If you cruise on the hwy then it will do well. I typically get at 70mph about 33mpg and at 80 about 28. Are your numbers within that range?As I follow up, since the Colorado diesel looks to be discontinued after 2020, do folks think that will be better or worse on re-sale values?
My past Toyota PU was in the area of 15 to 16 no matter what type of driving I did so I am pleased with the numbers I am seeing.
Probably worse, but who knows anymore.
Mine has plenty of pep, even de-tuned.
If you bought it for resale value, then you may want to rethink. Too much electronic on these new vehicle to be any good one it add mileage and age. Electronic become dated as soon as the next model come out. The programming of my 2017 was obsolete when the 2018 came out. And it will many years if not decades before you can think of if it will make it on the classic list.
With that being said, get what make you happy and drive it like you stole it.
With that being said, get what make you happy and drive it like you stole it.
Something is wrong with your truck. I own a 2017 Chevy Colorado with the 2.8 L Diesel engine and there’s no way my trick goes into regen mode that often. Love the truck and engine. Average just over 30 mph on the highway, great torque, no problem getting up to speed with traffic on the highway.Great truck I am around 12K miles.
I have had some weird minor things that i cannot thing of at the top of my head. but all dealers fixed easy peasy
My biggest complaint is the Regen Mode it happen to me 2-4 times a week. I believe because I do a lot of short local driving all city. I live in Los Angeles. Anyway is devastates my MPG's literal drop of 15-25MPG
Really, you’re complaining because an engine heater wasn’t in your truck? You could have added one as an option when you bought the truck. You didn’t so stop complaining.Bought My truck in May of 2016....I have had 2 duramax before....had 2 issues the dealer in Dixon Illinois Repaired it quickly...they are Awesome.
The Truck is a very nice Truck....I have 10,000 miles on it...this week the dealer serviced it and added def fluid..I was down to 22 percent in 10,000 miles thats good I thought. The mileage is fantastic....The ride is fantastic....The Diesel has more than enough power......I like diesel trucks even if I dont tow....
The only complaint I have is The truck didnt have a engine block heater.....no heated mirrors....I think if you have heated seats and a electric rear defroster....the mirrors should be on it and an engine block heater on all diesels......at a list price of 42,000 dollars.
Its a GMC All terrain...crewcab 4x4
#1 problem....The electronics for .clutch fan was replaced...throwing codes sounded like jet engine...fixed with in 24 hrs.
#2 problem......Would not start,,,no power to starter.....Towed in ..fixed in couple hours...loose connector at Starter...
Love the Truck.....Mileage...27.4 country/city and hwy......cold weather 1 mile less avg.
Why would every Chevy put an engine heater in every Chevy Colorado as a standard thing? I live in FL and have a 2017 Colorado with the 2.8l Duramax. Great engine and truck. No heater needed.
Took a 80 mile round trip today. Mostly county roads and got my 450 mile avg up to 22.6 mpg. Trans temp topped out at 181.
22.6 avg. What was your mpg for that tank. Think I’m missing something.Took a 80 mile round trip today. Mostly county roads and got my 450 mile avg up to 22.6 mpg. Trans temp topped out at 181.
i did the same last week. I reset trip 2 every oil change. And reset trip 1 every fill up.
My country road drive yielded 35 mpg.
I added (water wetter) to the rad, and since then my trans temps run around 170
And according to my app the engine temp and oil temps are all much lower.
The lower water temps also help keep the transmission oil cooler since it runs through the lower rad section.
This all sounds good until you take into account that diesels like to run hot. And diesel efficiency is at its best when HOT...
Rob
For the tank? 23.0somthing. I don't do any long trips normally, so most of the milage is around town. Also, the truck has no air dam, so that may be 1 or 2 mpg deficit.
2016 duramax 44k miles stock, light towing, mostly highway. Engine went catastrophic. GM replaced with a new crate engine. No added warranty. only option now for me is to trade in wile engine is new
2017 Chev Colorado Duramax I have been fighting a check engine light p2002 deal says the DPF is plugged ran some cleaners thru it light still comes back. took to a independent shop that specializes in DSL they checked it over and found the DPF is not plugged the regen is working as it should but the light still comes back they are thinking its a bad sensor and are trying to diagnose which one anybody have any ideas?. by the way the truck runs great is averaging 27 MPG What is the best delete to do to it?
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