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Duramax Swap-tranny/tcase questions

Which one would you do?

  • 6.6 Turbo Diesel Duramax

    Votes: 15 44.1%
  • Cummins

    Votes: 9 26.5%
  • Other??????

    Votes: 3 8.8%
  • Run around nekkid with diesel fuel all over your body.

    Votes: 7 20.6%

  • Total voters
    34
A Dmax will NOT run on gasoline. Sorry.

Go do a search on dieselplace.com. Every month or so there is a thread from guys that have filled up with gas by mistake. If the tank is low enough, it doesn't take very long for the engine to die. Draining, purging and changing the filter is usually all that it takes to get them running again, however it is never known what kind of damage the injection pump may have suffered due to the lack of lubricity.

x2 seen them come in for service at work when gas was filled up with.
 
The Duramax can run on gas.

I'm sorry, but unless you can back up your claims with some sort of proof, you really shouldn't be saying such silly things. Prove to me that a D-Max can run on gasoline and I'll buy you a membership here. :deal:
 
Very well gents. It is something that I can't prove myself, and you are correct, I shouldn't take someone else's word for it, no matter how much I trust them. So, until I can afford not only a Duramax, but also the chance that I could be wrong, I will keep that to myself. Since this is what it is, I appreciate the lack of flaming over my comments.
 
I'm faced with filling up my Dmax after work today, 34 gallons. Believe me, if it would burn unleaded regular, I would gladly accept the ~.40 cents per gallon delta!

After Katrina I was buying Biodiesel in downtown Phoenix as I worked nearby. Back then it was about .30 cents cheaper per gallon, and the truck ran great! Not sure how much they are getting for it now, but since I work/live in north Scottsdale the round trip drive isn't worth it.

Anyway here is just one example of what happens when the gas to diesel ratio is too high. Remember, a gallon or two of gas mixed with 20 plus of diesel is not the end of the world, but worth draining and changing filter(s) IMHO. This is from Dieselplace.com:

"I am so freakin embarassed that I was not going to even tell anyone, but I decided I needed to ask you guys to see if I should be worried or do anything else. My head was completely somewhere else, when I pulled into my normal diesel pump. The handle is right next to the gas handle and I grabbed the wrong one. Any after I pissed away $50 worth of gasoline in my Duramax, and hung it up, and realized that I just did. I did not know what to do, so I tried to make it back to my garage, since it was close, but she completely shut off about a mile down the highway. To make a long story short, I was able to syphon 75% of the gas out of my tank by disconnecting my Nictane filter line, and pump the rest of the gas out of my tank and fuel lines by opening up the bleed screw and using the OEM prime pump on top of the OEM filter head. Got all the gas out, filled it up with Diesel, primed all the air out, and it fired right up. Truck runs great, but I can't help but be worried that I may have damaged my baby somehow. Should I do anything else? Fuel filters are brand new, but should I change them again?"
 
Perhaps it was just dumb luck for my dad and friend. I've seen weird things before. It would be nice if the big 3 would go ahead and make a multi-fuel for consumers though. Can't be that hard.

Speaking of bio-diesel, I would be cautious about it if you don't know who made it. We were having engine problems with a lot of our blue fleet a while back. Randomly dying, hard starts/no starts, just crappy problems. We turned in a few to maintenance and they told us the problem. The fuel lines were clogged with paint. Apparently the people in charge of 'bio'-diesel were mixing everything that might burn into the tank. I've heard great things from people making their own diesel, but ever since then I've been wary of anything at a pump.
 
Biodiesel is an excellent solvent, so if any parts were painted inside this may be were the paint came from. Also, if the engine has been run on regular diesel for a while then the gunk in the tank can break loose and clog lines.

www.biodiesel.org has lots of info on biodiesel. Its almost a given that you'll have to change your filters at least once when you start running biodiesel.

It will make rubber lines erode also. Makes them feel like jelly.

Mark
 
I've heard its a little less powerful so you may lose a little mpg but this is what I've heard from farmers using it in tractors.

Mark
 
This is off the website. Not sure want "similar" means.


Myth:
Biodiesel does not perform as well as diesel.
Fact:


One of the major advantages of biodiesel is the fact that it can be used in
existing engines and fuel injection equipment with little impact to operating
performance. Biodiesel has a higher cetane number than U.S. diesel fuel. In more than
50 million miles of in-field demonstrations, B20 showed similar fuel consumption,
horsepower, torque, and haulage rates as conventional diesel fuel. Biodiesel also has
superior lubricity and it has the highest BTU content of any alternative fuel (falling in the
range between #1 and #2 diesel fuel).

 
I am really set on doing this swap this summer. If I do it I will be going 1 ton axles and most likely 4 linking at least the front.
 
Awesome, If you do make sure you take lots of picture and do a write up muddinmanny style. :haha:
 
Yep, ive got a bunch of debt to pay off first. So realistically I could have the swap started next winter.
 
Its a damn expensive swap and hobby in general. This year is hopefully going to be good for me though!
 
Sure is but man would it be a awesome swap. I hope to have mine done within 5 years. :haha:
 
Similar means less power and they hope you don't notice:rolleyes: Some will notice, some won't. To me this dance around the question just confirms it.

If you make your own at the tossed around price of about $1 a gallon then you can afford to loose some MPG;)
 
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