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redwngr

3.0L Duramax - who owns or has driven one

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There are some starting to show up at dealers near here.

 

Reviews would be appreciated.

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Ive been checking in daily for weeks here... cant wait to hear from owners!

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I was tempted to get 3.0 but instead opted for the 6.2. Felt it was to much risk with a new engine in this truck. 

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1 hour ago, Rider1122 said:

I was tempted to get 3.0 but instead opted for the 6.2. Felt it was to much risk with a new engine in this truck. 

I hear ya. I really want the 3.0 but I’m kinda scared. 

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once the aftermarket figures it out, the power potential could be amazing,  but don't forget about all the added cost involved with owning a diesel...

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On 9/2/2019 at 10:17 PM, wizard4878 said:

once the aftermarket figures it out, the power potential could be amazing,  but don't forget about all the added cost involved with owning a diesel...

Which is really nothing if it doesn’t break down...

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36 minutes ago, dw91 said:

Which is really nothing if it doesn’t break down...

You have more faith than most. Considering there’s already 2020 HDs with the carryover Dmax going into limp mode, I can’t imagine this 100% new engine being flawless out of the gate and probably even worse once it’s old, or out of warranty (which would happen instantly if you delete or tune it)...

 

Seems like there’s always, ALWAYS one or two problems with a new diesel. GM has a much better track record than Ford, but I’m not sure I’d be willing to take the first year bullet on any new diesel. 

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40 minutes ago, OnTheReel said:

You have more faith than most. Considering there’s already 2020 HDs with the carryover Dmax going into limp mode, I can’t imagine this 100% new engine being flawless out of the gate and probably even worse once it’s old, or out of warranty (which would happen instantly if you delete or tune it)...

 

Seems like there’s always, ALWAYS one or two problems with a new diesel. GM has a much better track record than Ford, but I’m not sure I’d be willing to take the first year bullet on any new diesel. 

That’s not really added cost to owning a diesel though. 

 

I’m sure there’s going to be problems with the emissions junk at first (I had one in 7 years, 2 different trucks 200k km total) but that’ll get sorted. If you delete it before it’s out of warranty then you should know you’re assuming a lot of risk especially with a new generation. 

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On 9/5/2019 at 5:26 PM, dw91 said:

That’s not really added cost to owning a diesel though. 

 

I’m sure there’s going to be problems with the emissions junk at first (I had one in 7 years, 2 different trucks 200k km total) but that’ll get sorted. If you delete it before it’s out of warranty then you should know you’re assuming a lot of risk especially with a new generation. 

but higher cost of fuel,  cost of DEF,  higher cost for an oil change, even if you do it yourself...

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In my area fuel is the same price, def is roughly $25/7-8000km depending on usage, and oil changes are the same. So def and fuel filters are the added cost. $100/yr in def and 2 fuel filters, not a big deal.

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Atleast DEF fluid costs less than diesel does, in my state anyway. Only about 2.80 a gallon at the truck stops. The 2.5 gallon jugs from the auto parts store cost more than the stuff at the pump.

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I’ve always been told not to use the stuff at the pump, it’s not always fresh and can cause serious issues with the system.

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I fill up my 6.7 cummins work truck once a week with it for the last 65,000 miles, not one single issue. 4-5 gallons only lasts about 800-1000 miles when I'm 14,000lbs dry.

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11 hours ago, dw91 said:

I’ve always been told not to use the stuff at the pump, it’s not always fresh and can cause serious issues with the system.

I would argue that the bulk def from a busy truckstop pump is probably fresher than jugs.

 

(if you are saying don't by jugs that are stacked by a fuel pump, then I'd agree)

 

 

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11 hours ago, CamGTP said:

I fill up my 6.7 cummins work truck once a week with it for the last 65,000 miles, not one single issue. 4-5 gallons only lasts about 800-1000 miles when I'm 14,000lbs dry.

What kind of fuel mileage does it get? sounds like way more def than the 6.6 GM's are usng.

GM 6.6's def usage is about 1.5 or 2% of fuel.

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