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Any news on the 3.0L I6 Duramax?

Staff #1

BoostN

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GM websites still show late availability from what I can see. I'm assuming since we're already in 2019, it means late for 2019? Unfortunate for GM they are this far behind already while Ford/Ram has already got one on the market.
 
Staff #3

BoostN

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I'm really wanting to drive one to see how it is on power. I know the 400+ HP of the 6.2 will be hard to beat, but the fuel mileage hopefully will be the nice trade off... then again, I'm thinking about smiles per gallon lately after driving my 2.8L Colorado.
 

BIGR

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I'm really wanting to drive one to see how it is on power. I know the 400+ HP of the 6.2 will be hard to beat, but the fuel mileage hopefully will be the nice trade off... then again, I'm thinking about smiles per gallon lately after driving my 2.8L Colorado.

I suppose if the new truck (1/2 ton) with the Inline 6 Diesel was able to get better mileage than the current Colorado that you have, you would think about a trade?
 
Staff #5

BoostN

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I suppose if the new truck (1/2 ton) with the Inline 6 Diesel was able to get better mileage than the current Colorado that you have, you would think about a trade?
For sure... if I can get more truck for similar MPG and more comfort, it would make a lot of sense. The interiors of the Colorado aren't as nice as a full size truck.
 

WarWagon

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For sure... if I can get more truck for similar MPG and more comfort, it would make a lot of sense. The interiors of the Colorado aren't as nice as a full size truck.
I had hoped that cheap feel S-10 mindset had passed at GM.

Meanwhile *snark* my clutch has trouble with the 400+ HP and 1000 lb-ft of my inline 6 - 5.9... so it's possible to have a fun I6.

That said how it the 10speed trans holding up on the Fords that GM is rumored to be also using? GM/Ford joint venture...

@tanman_2006 let others prove the 1st year engine. The last GM diesel venture wound up ventalating a lot of blocks under warranty aka ecodiesel FCA wound up with. I doubt it because you can't fix management stupid but that should teach FCA not to touch any diesel GM had a hand in. :p
 

BoostN

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The last GM diesel venture wound up ventalating a lot of blocks under warranty aka ecodiesel FCA wound up with.
Those are hero or zero motors... it seems some guys have over 100K with no issues, while some can't make it to 36K before loosing a motor.
 

THEFERMANATOR

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That said how it the 10speed trans holding up on the Fords that GM is rumored to be also using? GM/Ford joint venture...

@tanman_2006 let others prove the 1st year engine. The last GM diesel venture wound up ventalating a lot of blocks under warranty aka ecodiesel FCA wound up with. I doubt it because you can't fix management stupid but that should teach FCA not to touch any diesel GM had a hand in. :p
Last I heard, nobody actually has the 10 speed out yet, at least not the 10r140. Ford and GM both are rumored to have it for 2020. GM paid allison to test and certify the design so they can still call it an "ALLISON" trans for marketing.

And the ecodiesel was 100% Fiat. GM paid them to design it, then shelved it, and gave the rights to it back to Fiat. GM's last diesel engine that has been released is the current L5P which aside from some pushrod issues in low milage engines has been pretty dang good. I'm interested to see how the new 3.0l pans out and if it ends up being based off of somebody elses engine.
 
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