Engines - How many have the Duramax?

[EatMySHorts]

I went diesel because I tow a pontoon boat and live at the top of a steep hill with a stop sign at the bottom. I have no road to get revs up before tackling the hill, so decided diesel torque was needed. So far it rocks!!!

 

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[gemarsh]

I have a babymax and 2 bigmaxs.

 

[gwagers81]

Just the one Big Max for me! The wife’s Navigator might get swapped out for something with a baby max. Have some friends with them and they are amazing on the fuel mileage and the get up and go.

 

[Akcajunz]

2025 AT4X Babymax for me...plenty of torque for what I tow and really liking the 26-28 mpg when not towing!

 

[JimP]

3.0 here. So far really like it.

 

[700SKS]

Babymax for me....

 

[Sevenonfouroff]

3.0- like it!

 

[SmknLBZ]

2024 AT4X with the 3.0 previously owned 2007 LBZ and 2018 2.8 Colorado. Best milage of them all and creature comforts are great.

 

[RebelDS]

LZ0 and I love it. If it ever regens, I never know it. Drive it like normal

 

[SmittysAT4]

2025 AT4 Babymax 3.0 here, love it, so far soo good and the mileage even with the 35"s is great!!!

 

[chc01a]

I have a 3.0 Duramax in 2025 Yukon XL AT4 Ultimate. Purchased in August just because it has air suspension which would lower some to help wife get from wheel chair to truck. The 3.0 was just a bonus, I thought! Already replaced it at 7k miles. Took dealer 45 days to get a new one from GMC.

Fuel economy is good but I don't trust it for long trips now that the first engine went bad.

 

[Oncewas]

I have a 3.0 Duramax in my 2025 1500. Love it especially pulling my camper.

 

[SmittysAT4]

I have a 3.0 Duramax in 2025 Yukon XL AT4 Ultimate. Purchased in August just because it has air suspension which would lower some to help wife get from wheel chair to truck. The 3.0 was just a bonus, I thought! Already replaced it at 7k miles. Took dealer 45 days to get a new one from GMC.

Fuel economy is good but I don't trust it for long trips now that the first engine went bad.

Damn, what was the issue with the 3.0 here? Sounds like GMC has their hands full with the 6.2 and now hearing this with the 3.0

 

[trainercourtney]

3.0 here. Love it and appreciate the mileage considering the fuel costs.

 

[gemarsh]

Damn, what was the issue with the 3.0 here? Sounds like GMC has their hands full with the 6.2 and now hearing this with the 3.0

Thrust bearing is failing on the LZ0. Happens mostly before 15k miles.