Greetings,
I am new to the diesel world, so forgive my not-so-intelligent questions. Does anyone know what the impact will be on the CTD if biodiesel is used as fuel? Can biodiesel be used? My father-in-law has a duramax, and apparently there are some serious issues with the use of the biodiesel in his year group engines. Just wondering ...

 

I've been using B100 ever since I got my truck (used), about 3 months and a couple thousands miles. So far so good...I plan to continue using (guess I'm getting "greener" in my old age)
The only issue you'll have is that you'll get less power out of Bio, Bio has less stored energy than #2, I forget what the exact numbers are. And your MPG will suffer a bit, maybe 10 - 15% because of the lower energy.
Because you've got a late model truck you shouldnt have to worry about the fuel lines as it should all be synthetic.
Also, I know there's been previous discussions regarding warranties which I wont dive into here (as my truck is out of warranty so it doesnt really affect me)

 

you do need to research this further, seems there are some issues with bio-diesel and high pressure common rail fuel injection. I would be very careful running it in a 2003 and up CTD. I do think cummins has approved up to 5% (B5) but dont qoute me on that.

I run B20 in my truck, but it is the old style, no problems and sure helped quiet it down.

Good luck,
DuaneW

 

Good question but might get better feedback in 3rd gen forum? I don't know the answer regarding common rail CTD's.
I run BIO20 in my 02.... and love it!
"BURNING THE BEAN".... www.earthbiofuels.com

RJ

 

5% is the cummins official word. the usage in 3rd gens is arguable....most beleive as long as its dried good (esp if homemeade) it is ok. its hard to tell the long term results but i have talked to some folks with quite a few miles with no issues....

 

I am a BD producer and the basic specs are that bd has a higher lubricity, higher cetane level and 80% less emissions, which is almost neutral carbons. Your power should not be affected much, but the mpg will go down about .5-1.5 mpg

 

I have run B20 "Bio willie" in my 06 and wifes Liberty CRD with no troubles. Only notice that it runs quiter and not quite as good fuel milage. Seems to work fine.

 

I ran a tank of B50 through mine last month, no problems so far. It was quieter and the overhead showed an increase in mpg (not scientific mind you). I changed my fuel filter afterward, as the service station that sells it recommends after your first tank. I guess it cleans the system out. I'll probably be doing it again soon, but as winter approaches I understand they drop their blend to B20.

 

Cummins says that anything over B5 contains too much water for the existing system to handle. Military can go higher than B5 with add on water extractors. I've run B20 with no problems and I here guys running B99/B100 with no problems (at least of now).

Pete

 

Where is the H2O coming from??? What's your source material?

Our local plant is a customer of mine. They won't release and product (B100) that is not less than 200 ppm water.
I would think we get more than that in petroleum diesel fuel?
RJ

 

Does anyone know of any places in San Antonio to get Bio Diesel? I've made it in AL, but have not started a new processor down here yet. I would just like to run a few tanks...

 

the water comes from when they "wash" the Biodiesel.

you use water misters to spray on top of the bio and as the water drops down onto the bio it grabs dirt/imperfections and they fall to the bottom of the tank with the water. After that you need to "dry" the bio, most use fish tank bubblers to pump air in the tank to "dry" the water out of the bio.

if you don't dry it very well and it contains water then it makes the bio become "stringy" and it will clog the filters on your truck.


Any thing over 5% bio "voids" your warranty.(in the owners manual)
I checked it out for a while but the cost is not that different between bio and #2 diesel, so for now I am not going to run it in mine.

I would hate to drop and injector and have them (DC)blame it on bio, so I will stick with #2 for now.


53

 

I'm with you.

I would run B-5 if it were even remotely available around me, other than that I'll be sticking with regular diesel.

 

Keep in mind too there are more reasons than cost to run BioD
(giving OPEC the finger come to mind).


Oh, and not trying to cause a stir or anything, but judging by your sig. your warranty is already in jeopardy isn't it?

 

What's in his sig? Removing the silencer ring? Gauges?