Chevy brings the 8.1 BACK!!!

Discussion in 'Trucks and Trailers' started by Oakleaf landscape, May 19, 2011.

  1. Oakleaf landscape

    Oakleaf landscape LawnSite Senior Member
    Messages: 624

    My buddy picked up a new 2500 HD with the 8.1 in it. Bad ass motor. It's not on there website yet. Just to let you guys know.
  2. ConstSvcs

    ConstSvcs LawnSite Senior Member
    Messages: 380

    Yep............plenty of power! Too bad it uses 5w30 oil! GM states that acceptable oil consumption of the 8.1L is up to 1 qt per 1000 miles under heavy use (towing......etc)

    How do I know this................I own one.......and it does.....and GM issued a letter to me thru my dealer regarding the oil consumption.

    My 03 2500HD currently has 167,000 miles on it. Runs very well.........but uses its share of black gold ! I think its BS. I wish waited for the Duramax ! Since the 8.1 comes with the same Alison tranny and chassis setup.
  3. Oakleaf landscape

    Oakleaf landscape LawnSite Senior Member
    Messages: 624

    Yea but the 8.1 A LOT cheaper...
  4. White Gardens

    White Gardens LawnSite Fanatic
    Messages: 6,776

    That's Awesome!

    I love the 8.1 in my 01 3500HD. Has the 4l80E behind it though, but so far it's been a great truck and tranny combo.

    Yes, does consume some oil. I'm at less than half a quart every 1000 miles though.

    Another thing that sucks is the lifter chatter at startup. My 4.3 in my s-10 does the same thing. Doesn't take long for it to go away also.

    ConstSvcs- You can put 10w30 in the 8.1 down to -15*F if I recall. After that then they say to use the 5w30.

    THEGOLDPRO LawnSite Fanatic
    Messages: 5,222

  6. BlackBirdWS.6

    BlackBirdWS.6 LawnSite Member
    Messages: 90

    Man would I love to have an 8.1l, I might have to trade up.
  7. dbear

    dbear LawnSite Senior Member
    Messages: 606

    Do you or your buddy have an external source? I just checked out both the Chevy and GMC websites. For 2011, the only engines offered are the 6.0 Vortec gas, and the 6.6 Duramax diesel.

    I also googled "GM brings back 8.1" and got no current information to confirm.
  8. White Gardens

    White Gardens LawnSite Fanatic
    Messages: 6,776

    I think the greatest thing about the 8.1 is it's an industrial/marine motor to begin with.

    From all my research and looking around, I haven't found anyone who has blown or trashed an 8.1.
  9. buttaluv

    buttaluv LawnSite Senior Member
    from MidWest
    Messages: 572

    just bought a 01...pulls like no other, especially out of a gas station! ha ha
  10. ACC_INC.

    ACC_INC. LawnSite Member
    Messages: 22

    10 mpg and it drinks a quart of oil every third fill up??? How is this remotly economical? Don't get me wrong, I love big HP, but I don't like throwing money away. Does the burnt oil leave deposits all over the motor? Where does all the ash go? (Ash is a metal partical in oil, it is not found in 2 cycle oil, which is why 2 cycle can burn oil, not 4 cycle) It seems like a poor design to me.

    Please educate.
    Posted via Mobile Device

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