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2.8 Duramax: Love it or Hate it?

239786 Views 202 Replies 75 Participants Last post by  RMneanCA
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.
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Nope just regular maintenance. I usually add Power Service cetane boost into the fuel and it helps reduce regen frequency. I notice more pep when I use it.
I noticed longer mileage between regens after I got a GDE tune, plus a few extra MPG as well not to mention the drivability improvements.
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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
Yeah the shot trips will do that. You need to take it on a long trip to clean it out. My city mileage is not that great either. I use Power Service cetane booster in the fuel and I also have an s&b air intake and that gave the engine more pep. For your regen problem I would recommend using Archoil fuel additive. It cleans the entire fuel system from the turbo to the egr and the particulate filter.
It would be the best truck without all this emissions crap on it but that's government regulations for you.
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Yeah the shot trips will do that. You need to take it on a long trip to clean it out. My city mileage is not that great either. I use Power Service cetane booster in the fuel and I also have an s&b air intake and that gave the engine more pep. For your regen problem I would recommend using Archoil fuel additive. It cleans the entire fuel system from the turbo to the egr and the particulate filter.
It would be the best truck without all this emissions crap on it but that's government regulations for you.
I just logged in many years later to see this reply...I will try it. haha i am out of warranty and my extra thing I bought, external warranty and paid off ... I am little more able to freely spend my money.
So, I am thinking /planning to do a bunch of stuff, such as:

1" level on the front
Mighty Mouse Catch can
something to do with air flow increase by replacing a couple parts (I am currently looking for this random solution now from years ago, thus here i am logged in)
maybe a Duratuner thing that is supposedly good in CA I dont want to mess with CARB
Bed lights
Bed extender

if I go wild consider bigger turbo (again CARB)
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