Bio diesel in a 6.7 b100 vs b20 - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 03-02-2012, 07:03 PM Thread Starter
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Exclamation Bio diesel in a 6.7 b100 vs b20

The book and fender say we can run b20. But what is really stopping us from running b100 (wvo)?

A buddy of mine is trying to get me going on making it. I have a 01f550, a 03 f350 both with 7.3's and my 6.7 is really the only thing holding me back. If tuned with emissions system removed could we run b100 with success?

Any info is appreciated
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post #2 of 17 Old 03-02-2012, 07:09 PM
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I can run B20, and I don't have a fender. It's just marketing.
The reason HEUI motors are so easy to run on B100 is cause the fuel never gets pressurized about ~70PSI until it's being injected.
On a 6.4, 6.7, or any CR motor, the fuel is being compressed well before the injector. Not sure what that does to the fuel.



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post #3 of 17 Old 03-02-2012, 07:13 PM
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I "think" a normal hold back is lube oil being diluted with fuel due to the regen operation. Diluting the lube oil with BioD isn't good. But if, as you say, the regen isn't taking place....!!....??

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post #4 of 17 Old 03-02-2012, 07:25 PM
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Heck, even normal diesel getting in the oil is bad.



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post #5 of 17 Old 03-02-2012, 07:48 PM
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Straight out of the 6.7 Technical Supplement document....

Use of biodiesel in concentrations greater than 20% may cause damage
to your vehicle, including engine and/or exhaust after-treatment
hardware (exhaust catalyst and particulate filter) failures. Concentrations
greater than 20% can also cause fuel filter restrictions that may result in
a lack of power and / or damage to fuel system components, including
fuel pump and fuel injector failures.

Not sure if this helps or if you already knew this.
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post #6 of 17 Old 03-03-2012, 09:55 AM
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I've run some B50 and not had any problems, But NONE of it was from WVO.

If you are getting a commerically produced Bio diesel, I don't think there is too much a problem, Just more that Ford has not approved it for Emissions or longivity. But using a Waste Oil that is converted, I think is just pushing your luck on these engines. Its a $12,000 repair if you mess up your common rail fuel system.

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post #7 of 17 Old 02-13-2013, 02:35 PM
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I have a 2011 with the 6.7L "Ford" diesel (Ford needs to get out of the engine business) and have access to some B20 made from rapeseed feestock --- anyone have any experience with this biodiesel using this feedstock?
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post #8 of 17 Old 02-15-2013, 12:36 AM
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Quote:
Originally Posted by 2003 Ford F350 View Post
I have a 2011 with the 6.7L "Ford" diesel (Ford needs to get out of the engine business) and have access to some B20 made from rapeseed feestock --- anyone have any experience with this biodiesel using this feedstock?
What! Why? Cause they developed a cutting edge engine/turbo that has a great track record so far?

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post #9 of 17 Old 02-16-2013, 12:42 PM
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Bio diesel in a 6.7 b100 vs b20

I agree with BIG Laing, the 6.7 is a great engine. Bosch needs to refine and bullet proof there fuel systems. Chevy is having similar problems with the fuel systems as well. To answer the OP's question about 100%bio in a CR fuel system, Im not 100 % about the chemistry but the lipids in the bio fuel will start to break down under the high pressure, these fuel systems are high pressure low volume systems. And fatty acids do funky things under high pressure and temperature.


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post #10 of 17 Old 02-16-2013, 01:50 PM
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In a bio diesel that is not wvo and is broken down using methanol and potassium, there are no fatty material in the fuel. That is what makes bio diesel. Breaking off the esters off of the glycerine molecules. The real problem is when it is manufactured by different people, there is no real way to make the fuel consistant. The real issue is getting the water out of the fuel. Most don't spend the time to "dry" the fuel.

Ford is confident that if a home brewed fuel mixed at 20% to other fuel, then the truck will still function properly.

A good manufactured bio should be able to run 100%, but Ford can't guarantee someones home brew fuel.
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