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Thread: GM 3.0L Duramax Turbo-Diesel I6

  1. #1
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    Default GM 3.0L Duramax Turbo-Diesel I6

    Looking at new trucks and am trying to decide between this Duramax engine or the 5.3L. Was wondering if anyone has any experience with this Duramax and what feedback you may have. Thanks!
    Psalm 42:1 "As the hart panteth after the water brooks, so panteth my soul after thee, O God."

  2. #2
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  3. #3
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    Thank you, I overlooked it when I searched
    Psalm 42:1 "As the hart panteth after the water brooks, so panteth my soul after thee, O God."

  4. #4
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    Quote Originally Posted by davisd9 View Post
    Looking at new trucks and am trying to decide between this Duramax engine or the 5.3L. Was wondering if anyone has any experience with this Duramax and what feedback you may have. Thanks!
    I had the same questions thats why I started that thread he linked too. I picked mine up last month and so far its been great. the 5.3 are blowing thru lifters like crazy on all the forums Im on as well as what we KRT doing to them. So far so good.

  5. #5
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    Default GM 3.0L Duramax Turbo-Diesel I6

    Going on two months and 3,000 miles. I have been very happy with the truck. For hunting, driving, and occasionally towing it has been great!






    Sent from my iPhone using Tapatalk
    Last edited by davisd9; 06-20-2022 at 04:11 PM.
    Psalm 42:1 "As the hart panteth after the water brooks, so panteth my soul after thee, O God."

  6. #6
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    3300 miles here and its been great

    DC7713AA-3B41-4ED1-AEB8-862650DF0427.jpg
    Last edited by Biggie1976; 06-20-2022 at 06:11 PM.

  7. #7
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    I want a white at4 with the duramax
    They seem to get way better fuel mileage than the 5.3 or the 6.2

  8. #8
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    I’m getting 22-30 depending on start stop

  9. #9
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    Quote Originally Posted by thawhacker View Post
    I want a white at4 with the duramax
    They seem to get way better fuel mileage than the 5.3 or the 6.2
    I have a start/stop eliminator on mine so it does not shut off unless I turn it off. Pulling a 6x12 trailer loaded I average 21 mpg. Regular driving with no towing I get 24-25. On my trip to Myrtle Beach from Turbeville I got 27. Other than eliminator everything is factory Silverado RST 4WD Z71
    Psalm 42:1 "As the hart panteth after the water brooks, so panteth my soul after thee, O God."

  10. #10
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    love mine. averaged 29.1 mpg on a 400 mile trip this weekend. 2" leveling kit, but otherwise stock.

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  12. #12
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    How could a grown man say that he owns a diesel that has a timing belt?Not only does it have a timing belt but it’s on the back of the engine. Transmission has to come out.

    All the justification of fuel mileage etc is gone once you have to replace the timing belt.
    Last edited by KRT; 06-22-2022 at 08:30 PM.
    More fuel = more boost!!

  13. #13
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    Quote Originally Posted by KRT View Post
    How could a grown man say that he owns a diesel that has a timing belt?Not only does it have a timing belt but it’s on the back of the engine. Transmission has to come out.

    All the justification of fuel mileage etc is gone once you have to replace the timing belt.
    I’m pretty sure the cost savings go out the door at the pump buying diesel.

  14. #14
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    Quote Originally Posted by KRT View Post
    How could a grown man say that he owns a diesel that has a timing belt?Not only does it have a timing belt but it’s on the back of the engine. Transmission has to come out.

    All the justification of fuel mileage etc is gone once you have to replace the timing belt.
    Isn’t that due at 150k? I won’t have mine that long

  15. #15
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    Quote Originally Posted by Remy View Post
    I’m pretty sure the cost savings go out the door at the pump buying diesel.
    Fuel filters, oil, etc.
    More fuel = more boost!!

  16. #16
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    Quote Originally Posted by Biggie1976 View Post
    Isn’t that due at 150k? I won’t have mine that long
    lol

    You know I’m pushing buttons….
    More fuel = more boost!!

  17. #17
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    Speculation is the oil belt will be resdeisgned on the 2023 - LZ0 engine. But rumored of cylinder deactivation.

    My sales guy has told me several times the auto stop function will be optional.

  18. #18
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    Quote Originally Posted by Remy View Post
    I’m pretty sure the cost savings go out the door at the pump buying diesel.
    Quote Originally Posted by KRT View Post
    Fuel filters, oil, etc.
    Savings went out the door buying a GM.
    Yeah, but do you consider a dog to be a filthy animal? I wouldn't go so far as to call a dog filthy but they're definitely dirty. But, a dog's got personality. Personality goes a long way.


    You might take out a dozen before they drag you from your home and skull fuck you to death. Marsh Chicken 6/21/2013

  19. #19
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    Quote Originally Posted by KRT View Post
    How could a grown man say that he owns a diesel that has a timing belt?Not only does it have a timing belt but it’s on the back of the engine. Transmission has to come out.

    All the justification of fuel mileage etc is gone once you have to replace the timing belt.
    If belt brakes will it be like a gas engines and valves could be bent

  20. #20
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    My wifes 2018 Tahoe gets 25 mpg on the way to the beach.
    More fuel = more boost!!

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