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Duramax 6600 Welcome to the Internet's first Duramax 6600 diesel discussion forum for the LB7, LLY, LBZ, LMM, LML, LGH & L5P RPO code engines. Tips on performance, fuel economy, troubleshooting and more.

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  #11  
Old 06-19-2006, 07:07 AM
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Mark Rinker Mark Rinker is offline
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Great news! Glad it worked out with no ill effects.

German fuel additive in a Japanese (Isuzu) descent engine in an American truck. We are truly a global economy in the making...
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  • Total GM diesel miles to date : ~950K
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  #12  
Old 06-19-2006, 02:04 PM
Javy Javy is offline
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Well said.
The additive I used is LIQUI (no D) MOLY DIESEL PURGE
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  #13  
Old 06-21-2006, 12:59 AM
Javy Javy is offline
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Mark,
Don't leave out a Mexican owner LOL
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  #14  
Old 05-02-2008, 07:22 AM
DealerDieselGuy DealerDieselGuy is offline
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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.
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  #15  
Old 05-02-2008, 05:20 PM
NutNbutGMC
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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.
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  #16  
Old 09-03-2008, 06:06 AM
Ric Ric is offline
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maybe skinny is on the dark side
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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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  #17  
Old 02-20-2009, 11:18 PM
GordonMarks GordonMarks is offline
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I'd agree w/JK. I've had the pleasure(???)of doing that to both my 99 L65 AND the DMAX in the 99. Both times, it took me almost 20 gal(it's a 42 gal tank)before I smelled something amiss(OK, I'm SLOW but remember, I'm OLD). I just went in & bought a gallon of oil, put it in the tank & went on.
The 6.5L ran another 100K before it gave way to the DMAX. The DMAX about 2K w/no problems.
Granted, neither time it ran very far before I added the oil.
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  #18  
Old 05-21-2009, 04:27 PM
Diesel Enthusiast Diesel Enthusiast is offline
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http://www.youtube.com/watch?v=vgTlZIId4cI
http://www.youtube.com/watch?v=IuRxgnvHKAI

The polar opposite, but it shows how much work one stupid mistake like that creates :P.
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  #19  
Old 05-21-2009, 08:00 PM
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DmaxMaverick DmaxMaverick is offline
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Quote:
Originally Posted by Diesel Enthusiast View Post
http://www.youtube.com/watch?v=vgTlZIId4cI
http://www.youtube.com/watch?v=IuRxgnvHKAI

The polar opposite, but it shows how much work one stupid mistake like that creates :P.
Welcome aboard, and thanks for the contributions.

While I wouldn't call these "stupid" mistakes, they are mistakes, nonetheless. The recovery methods in the videos aren't the best methods, but got the job done. Like he said, "Fire is good, increases ratings." Not the sharpest tool in the shed, methinks. Seemed he was disappointed it didn't blaze up.
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  #20  
Old 05-22-2009, 04:24 AM
tx dave tx dave is offline
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Anyone remember the old Army M113 APC. Multi fuel diesel engine. In a pinch you could use MoGas with 5 gallons of 30 W oil and it would run just fine. Just my 2 cents worth.
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