Warning:danger using WVO or >B5 on most vehicles 2007 up

For discussing the modifications needed for diesel vehicles to run with 2 tank veggie oil conversions.

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Warning:danger using WVO or >B5 on most vehicles 2007 up

Postby SunWizard » Fri Apr 18, 2008 3:45 pm

Vehicles >=2007 use diesel particulate filters (DPF) to meet new tough emissions standards. They inject extra fuel after combustion to burn off deposits on the DPF. This extra fuel when biodiesel or WVO gets past the rings and cause motor oil poly and serious problems. Some inject the extra fuel into the exhaust pipe (CAT) and this doesn't have this problem. Volkswagen tests using B5 and post-injection showed 45 percent oil dilution after 10,000 miles. This amount would be a disaster on WVO, due to poly.
Researched in this article:
http://www.biodieselmagazine.com/article.jsp?article_id=2290
More research:
Lubrizol study

It would be useful to compile a list of vehicles that use this type of injection and DPF, so far the known problem ones are:
Ford Powerstroke
Dodge Cummins
VW
Mercedes
Nissan
Renault

Don't have the problem (post-inject into exhaust pipe):
CAT

I will update this list as I find more info.

Here is a good article on how DPF work, from Ford:
http://www.forddoctorsdts.com/articles/ ... -07-03.php
Looks like trouble to me, and there have been many reported problems even running on D2. Such as the famous Ford recall flamethrower out the tailpipe, (they call a thermal event) video and fix info here:
http://www.forddoctorsdts.com/articles/article-07-01.php
Last edited by SunWizard on Thu Sep 23, 2010 4:21 pm, edited 4 times in total.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
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dodge cummins

Postby fryedrydes » Thu May 01, 2008 9:17 am

so is the cummins on the Slist or not because the fuel is injected into the exhaust pipe. I was working at Transwest and a new Cat equipped truck came in and needed two exhaust particulate filters. I believe they were $4,000 each. I think the fuel is injected into the exhaust. Seems like the particulate filters were a rushed emissions deal to keep diesels on the road.
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Postby SunWizard » Thu May 01, 2008 9:27 am

The dodge cummins has been confirmed to be on the problem list. The larger semi-rig Cummins and CATs often have an exhaust injector.

I agree the DPF were rushed and thats why there have been so many problems with them. Hopefully they get them working better somehow.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
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cummins

Postby fryedrydes » Thu May 01, 2008 9:52 am

This is only a problem on the new 6.7l cummins. The last 5.9l does not have a dpf correct?

Very sad! My all time favorite motor is no longer a 5.9l and can't handle the veg. I thought diesels were supposed to be tough! I guess cummins still warranties it for 100,000 miles on diesel.
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Re: cummins

Postby SunWizard » Thu May 01, 2008 9:59 am

fryedrydes wrote:This is only a problem on the new 6.7l cummins. The last 5.9l does not have a dpf correct?

All diesels sold starting 2007 have DPF by law. I don't know if they sold any 5.9s with a DPF.
Very sad! My all time favorite motor is no longer a 5.9l and can't handle the veg. I thought diesels were supposed to be tough! I guess cummins still warranties it for 100,000 miles on diesel.

I agree its sad. Someday someone will start making ways to hack the ECM software on these so that you have control of the DPF regens and can switch to diesel before every regen. Then they might work OK on VO, unless some other big issue pops up.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1719
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby SunWizard » Tue May 13, 2008 8:16 pm

Here is more research studies on lube oil contamination with biodiesel:
http://www.uidaho.edu/bioenergy/Bioshortcourse/Fuel_contamimants.htm
I would expect similar results with VO in lube oil.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1719
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Cummins 5.9 - 07/2006 -- DPF ?

Postby John Galt » Fri Jun 25, 2010 11:18 pm

A friend just bought a truck with the Cummins 5.9L manufactured in Canada in 07/2006.

Would this engine have a DPF, and what would we look for to confirm yes or no?
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Re: Cummins 5.9 - 07/2006 -- DPF ?

Postby SunWizard » Sat Jun 26, 2010 8:37 am

John Galt wrote:A friend just bought a truck with the Cummins 5.9L manufactured in Canada in 07/2006.

Would this engine have a DPF, and what would we look for to confirm yes or no?

Here is what the DPF looks like in the exhaust, and how to delete:
http://www.youtube.com/watch?v=TCvmG2_C ... re=related
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1719
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby John Galt » Sat Jun 26, 2010 12:46 pm

Did the 5.9 L get the DPF or just the 6.7 L Cummins ?
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