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Thread: Gasoline in my 6.6 Duramax

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  1. #1
    Join Date
    Jun 2006
    Posts
    11

    Default

    Well said.
    The additive I used is LIQUI (no D) MOLY DIESEL PURGE

  2. #2
    Join Date
    Jun 2006
    Posts
    11

    Default

    Mark,
    Don't leave out a Mexican owner LOL

  3. #3

    Default

    Glad to hear that you are up and running again.

    The biggest problem I have seen with running a high concentration of Gasoline in the 6.6 comes from lack of lubrication in the pump. However as many have said already, you USUALLY will not do any long term damage. I have only had one case where a guy did damage his pump from this, but he filled up in Georgia, and then drove all the way to Daytona Beach for bike week towing his big bike trailer. The lack of lubrication ruined his pump.

    For those who DONT know, the reason many of these trucks die from running on gasoline is that gas is not as "thick" or viscous as diesel. As such, when a injection pump is trying to build up the high pressures that the engines may operate on (LMM being up to 180 MPa), gasoline is too thin for these pumps to attain. Remember that these are high pressure/low volume systems. Since you cant get the gasoline to build up the pressures, you either get a shutdown, or the system will set a low pressure code, and then put your truck in "limp" mode which limits mas pressure control solenoid to approx 65 MPa.

  4. #4
    NutNbutGMC Guest

    Default

    Quote Originally Posted by DealerDieselGuy View Post
    Glad to hear that you are up and running again.
    That was 2 years ago... (June of 2006).

    Where's Skinny Blinky when you need him?


    Welcome aboard to the forum.

  5. #5
    Join Date
    Jun 2008
    Posts
    15

    Default

    maybe skinny is on the dark side
    Quote Originally Posted by NutNbutGMC View Post
    That was 2 years ago... (June of 2006).

    Where's Skinny Blinky when you need him?


    Welcome aboard to the forum.

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