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Old 03-14-2009, 05:52 PM   #1
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Diesel Conversations to Bio-diesel

Hey, do you think you could convert classic diesels to bio-diesel fuels or even running on vegetable oil like Willie Nelson?
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Old 03-14-2009, 05:54 PM   #2
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If you're buying fuel filters by the case, it'll work.
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Old 03-14-2009, 05:56 PM   #3
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From what I understand, most diesels can run on bio-diesel with no problem. You do need to make sure you have the right type of fuel lines and filters. As for running on vegetable oil, you need to have a specialized conversion done for that. It is quite a bit more involved.
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Old 03-14-2009, 05:59 PM   #4
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I have enough problems running fuel-stop diesel without getting into bio.
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Old 03-14-2009, 06:34 PM   #5
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Look at TDIclub.com because they have a forum section dedicated to this. I own 2 and would run biodiesel but not waist veg oil.
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Old 03-14-2009, 07:21 PM   #6
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I own 2 and would run biodiesel
Let us know how it works. I wish I had faith.
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Old 03-14-2009, 07:28 PM   #7
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Are Diesels harder to run and operate than gas engines?
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Old 03-14-2009, 07:28 PM   #8
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Like I said in my earlier post, bio-diesel will run and work well in almost all diesel engines with only minor or no modification. If you want to run vegetable oil, it is a big job to convert, not readily available, and a real mess to produce! I'd stick with bio-diesel!

But if you really want to run on french fries, here's the scoop!

Greasecar Vegetable Fuel Systems

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Old 03-14-2009, 07:32 PM   #9
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They used to be before they were readily available for passenger cars and pickup trucks, but not any more. Although diesel is a little more expensive than gas, they generally get better mileage, have more torque and run FOREVER (300,000 mi not unusual)!
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Old 03-14-2009, 07:36 PM   #10
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Are Diesels harder to run and operate than gas engines?
When they go bad, it's usually your fault. The Isuzu is a bullet-proof engine,when maintained like the fish boat guys do. I throw some Stanadyne additive in when we're up north.
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Old 03-14-2009, 07:38 PM   #11
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Are Diesels harder to run and operate than gas engines?
Not really. Repairs can run more especially on the heavier trucks, but that is true of gas powered models too. FWIW I have run gas engines in excess of 300k and diesels 500k with regular maintenance and replacement of wear out parts. From my experience the basic engines are solid it is all the other crap that causes problems.

As far as biodiesel....my 1996 PSD 7.3 LOVES B80 when I can find it, I don't think I would want to run pure bio due to variety of issues. We have considered making it and may in the future to power tractors on our small farm. I calculate that 10-12 acres of rape(canola) would provide enough bio to more than meet our current needs.

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Old 03-14-2009, 07:52 PM   #12
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From my experience the basic engines are solid it is all the other crap that causes problems.
What other "crap" would that be?
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Old 03-14-2009, 08:06 PM   #13
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A diesel engine should have no problem running on biodiesel... the first ones developed actually burned peanut oil. For contemporary engines the fuel lines will need to be biodiesel tolerant, otherwise they will turn into a spongy mess. Any decent biodiesel site will have links to suppliers for the correct line material. The lubricity of biodiesel is higher than petrodiesel, so there is no issue there. The big factor is how much petrodiesel has passed through the vehicle since new. Petrodiesel will leave scale deposits in the tank, lines, and the entire fuel system leading up to the combustion chamber over time. Biodiesel is a strong solvent for such deposits, and will break the deposited scale loose. This will clog tank sieves, filters, and possibly pumps in the fuel circuit. If you are considering biodiesel on a "seasoned" petrodiesel vehicle, you would probably want to blast clean out the fuel tank and associated components, replace all hoses, and make sure the pump is operating up to specifications. Since doing so on my used rig after purchase, I have run approximately 45k miles on biodiesel (b-100) without a "hiccup". Make sure you fuel up with ASTM grade fuel.
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