New desoxD oil certification
  1. Welcome to Chevy Cruze Forum : Chevrolet Cruze Forums – General discussion forum for Chevy Cruze

    Welcome to Chevy Cruze Forum : Chevrolet Cruze Forums - a website dedicated to all things Chevy Cruze.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join Chevy Cruze Forum : Chevrolet Cruze Forums today!
     
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12
Like Tree2Likes

Thread: New desoxD oil certification

  1. #1
    1st Gear
    Join Date
    Apr 2018
    Location
    Illinois
    Posts
    372

    New desoxD oil certification

    When researching dexos 2 oils on the official website, I noticed new dexosD oil certification: https://www.gmdexos.com/brands/dexosd/index.html

    It's currently only two oils and it appears to be a new 0w-20 oil for the inline-6 diesel engine in the Chevy Silverado pickup.

    What are the odds that GM retroactively recommends dexosD oil for their prior diesel engines?

  2. Remove Advertisements
    Chevy Cruze Forum
    Advertisements
     

  3. #2
    World Rally Champion Eddy Cruze's Avatar
    Join Date
    Jan 2014
    Posts
    4,386
    I'm not sure if that's an Official Site for GM?

  4. #3
    1st Gear
    Join Date
    Apr 2018
    Location
    Illinois
    Posts
    372
    Quote Originally Posted by Eddy Cruze View Post
    I'm not sure if that's an Official Site for GM?
    It is. It's a site that lists all the brands of oil licensed to be dexos approved for gasoline engines (dexos 1) or diesel engines (dexos 2), and now apparently dexosD for the new 2019 Silverado 1500 diesel engine.
    Eddy Cruze likes this.

  5. Remove Advertisements
    Chevy Cruze Forum
    Advertisements
     

  6. #4
    4th Gear
    Join Date
    Oct 2018
    Posts
    829
    Pretty unlikely though anything can happen.

    The 3.0 was delayed a couple months(no 2019s)and I believe its been for fuel economy reasons. I had heard that they were trying to certify the **** thing with 0w16! Its going to be GMs first post DPF fed EGR system, and I think besides trying to acheived fuel economy numbers, that has been a challenge. This engine has so much crap packaged in and on it it's ridiculous.

    GM hasn't even released the full service manual for it yet even though they are sending special tools. This engine is gonna end up being a clusterfcuk. It appears to be a nightmare to work on based on the info I have.

    Oh....BTW....It's got internal drive chains and belts....Soak that it in. LOL
    TDCruze likes this.

  7. #5
    4th Gear TDCruze's Avatar
    Join Date
    Sep 2014
    Location
    Saskatchewan Eh!
    Posts
    823
    Quote Originally Posted by Ma v e n View Post
    Pretty unlikely though anything can happen.

    The 3.0 was delayed a couple months(no 2019s)and I believe its been for fuel economy reasons. I had heard that they were trying to certify the **** thing with 0w16! Its going to be GMs first post DPF fed EGR system, and I think besides trying to acheived fuel economy numbers, that has been a challenge. This engine has so much crap packaged in and on it it's ridiculous.

    GM hasn't even released the full service manual for it yet even though they are sending special tools. This engine is gonna end up being a clusterfcuk. It appears to be a nightmare to work on based on the info I have.

    Oh....BTW....It's got internal drive chains and belts....Soak that it in. LOL
    The post DPF EGR intake is interesting and aside from more complex piping/packaging it seems like a good plan, in theory anyway.

    I would not run 0w20 let alone 0w16 in anything I wanted to keep. Especially with a turbo!

    As for the complex valve train... With belts and chains!?
    We need more info on how its configured to say how stupid or smart this is?
    2018 Cruze Turbo Diesel 1.6L 9T50 LT
    2014 Cruze Turbo Diesel 2.0L AF40-6
    (Sold) 38.2MPG DIC Lifetime Average

    Hidden Content

    Hidden Content

  8. #6
    4th Gear
    Join Date
    Oct 2018
    Posts
    829
    Yep, post-DPF EGR is a good idea in theory. Less crap back through intake and into cylinder again, lower intake/cylinder temps. Implementation is harder though because of the pressure differentials between the intake and the exhaust post-filter, as well as the transport of the exhaust this farther distance. On the 3.0Duramax the distance is reduced by how tightly packaged the entire exhaust after treatment suite is. It's virtually all underhood, and attached to the engine. Great for reducing the distance you need to route hot exhaust gas, a nightmare for on engine and underhood packaging. This engine takes up a lot of space.

    I'm right with you on 0w20/0w16, 12, 8, etc....But that's where we are headed. As long as they don't adjust the engines to the point where thicker oils are detrimental to their longevity or functionality, I'll continue to avoid these supe low viscocity oils in my personal vehicles.

  9. #7
    5th Gear
    Taxman's Avatar
    Join Date
    Aug 2017
    Location
    Olivet MI USA
    Posts
    990
    Quote Originally Posted by Ma v e n View Post
    Yep, post-DPF EGR is a good idea in theory.
    How about post-catalyst EGR for gassers?
    Especially DI engines that have no way of cleaning the EGR crap off the intake valves.
    2017 Cruze LT RS
    2016 Cruze LT with Sun&Sound

  10. #8
    4th Gear
    Join Date
    Oct 2018
    Posts
    829
    Quote Originally Posted by Taxman View Post
    Quote Originally Posted by Ma v e n View Post
    Yep, post-DPF EGR is a good idea in theory.
    How about post-catalyst EGR for gassers?
    Especially DI engines that have no way of cleaning the EGR crap off the intake valves.
    Don't jump the start...It's coming.(though EGR isn't widely used as a stand alone system on modern DOHC engines...They use VVT to accomplish it)

    So are gasoline particulate filters. Don't worry soon diesel will have an edge again because gas will have all the same bullshit Emission equipment.

  11. #9
    1st Gear
    Join Date
    Apr 2018
    Location
    Illinois
    Posts
    372
    Quote Originally Posted by Ma v e n View Post
    Its going to be GMs first post DPF fed EGR system
    I could never figure out why diesel engine manufacturers didn't do that from the beginning. Take clean (relatively speaking) exhaust from after the DPF, cool it with engine coolant, and dump it into the air intake right before the compressor. The mixture of EGR and intake air can then go through the charge air cooler and be much cleaner going into the cylinders rather than the current method that gives air full of soot.

    That is, unless combusting some of the soot is what it takes to keep the DPF from loading up with soot to where regen is too frequent.

  12. #10
    1st Gear
    Join Date
    Apr 2018
    Location
    Illinois
    Posts
    372
    Quote Originally Posted by Ma v e n View Post
    Oh....BTW....It's got internal drive chains and belts....Soak that it in. LOL
    Ford did that with their 3-cylinder Ecoboost. They discovered they could bathe a timing belt in engine oil with no ill effect, and it's basically a lifetime belt.

    GM also did this to us with the Cruze diesel engine. The timing chain is on the back of the engine to dampen noise inside the transmission bellhousing. I shudder to think of the cost to change a timing chain if it starts to rattle or otherwise be defective. That will be an engine/transmission removal, split them apart, etc. Might as well throw a clutch, water pump, alternator, etc. in there and other maintenance items if you're going to invest in that much labor to take them apart.

  13. Remove Advertisements
    Chevy Cruze Forum
    Advertisements
     

+ Reply to Thread
Page 1 of 2 1 2 LastLast

Quick Reply Quick Reply

Register Now

Please select your insurance company (Optional)

Tags for this Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBadvanced CMPS v4.1.2