20% Bio Fuel at Flying J/Pilot

IF you read the bulletin Cummins goes into length listing those engines which can use B20.......so Cummins is making the determination not Chrysler

Old-Biscuit wrote:

Turtle n Peeps wrote:

koda55 wrote:
OTR trucks stop at many different truck stops to fuel and they have many different blends of diesel. Does anyone really think that they would fuel their trucks with the blends that are out there if they would hurt their engines. I have the Cummins ISL 400 in my 2008 rv and have not had any problems with the different blends. Do engine problems happen, of course. I don't think it is caused by the biodiesel. I am a retired otr driver and fueled many times with biodiesel and never had a problem.

OTR trucks do not have the same HPFP that the pickups do. Not even close.

Why do you think the engineers that designed the fuel system in my truck say do not use over B5 or your warrantee will be void?

From the Linked Cummins Bulletin

"For Cummins engines in Ram trucks, B20 may be used
in municipal, government and commercial fleets only.
This applies to selected model-year vehicles. Please
consult an authorized Ram service center for specific
requirements and approved vehicle models."

That tells me NOT in my '07 5.9L CTD

the statement about ram trucks may have more to do with the fact that chrylser, NOT cummins is the warranty provider to owners of ram trucks and cummins doesn't want to get into conflict with whatever chrysler says.

Or, there could be a valid concern on cummins part. I'll put my money on the first.

Let's add to the can of worms. Cat says not to use rerefined oil, yet some municipalities require its use. If you think your not ever going to use bio, then you might as well sell it now because eventually you will have no choice.

Ok turtle, you opened it so you need to expound on it. It being there is a "not even close" fuel system difference between a medium duty truck and a OTR truck. A teaching moment awaits.

Turtle n Peeps wrote:

koda55 wrote:
OTR trucks stop at many different truck stops to fuel and they have many different blends of diesel. Does anyone really think that they would fuel their trucks with the blends that are out there if they would hurt their engines. I have the Cummins ISL 400 in my 2008 rv and have not had any problems with the different blends. Do engine problems happen, of course. I don't think it is caused by the biodiesel. I am a retired otr driver and fueled many times with biodiesel and never had a problem.

OTR trucks do not have the same HPFP that the pickups do. Not even close.

Why do you think the engineers that designed the fuel system in my truck say do not use over B5 or your warrantee will be void?

From the Linked Cummins Bulletin

"For Cummins engines in Ram trucks, B20 may be used
in municipal, government and commercial fleets only.
This applies to selected model-year vehicles. Please
consult an authorized Ram service center for specific
requirements and approved vehicle models."

That tells me NOT in my '07 5.9L CTD

I noticed the B20 last year, so far on my LBZ engine zero issues. I asked a GM Medium Duty Diesel Mechanic about it, he said so far he has not seen any failures attributed to B20, mostly folks that think they can get 40K plus out of a fuel filter. He said the while GM said for a long time not to use B20, the newer B20 is filtered and refined much better and I should not be concerned about it. I asked the Cat mechanic at Quinn Power, he said they have not seen any issues with B20 either, and technology on refinement has removed the contaminants which were a problem in the earlier B20 mixtures. He said to use it in my C7 and not worry about it, the engine will run fine.

Thhis past winter was cold. RVs are stored indoors with some heat. They had problems stating the newer coaches and coaches with biodiesel in them. It cost lot ot buy antigelling additives etc for fifty buses., and a lot of time changing out water separators.

nevadanick wrote:
Winter sun, DSL vehicles have had fuel warmers for a long time. My first was a 1985 and it had one. I ran B20 often in temps in the teens and never had a problem. That was in a 2010 Dodge. I never hesitate to fuel with bio blends and have never had an issue.

x2!

Even without warmers temperature it is a NON issue regarding gelling of diesel. May have been an issue 50 years ago, but NO LONGER.

Bio Diesel is no exception. Diesel is blended for lowest temp expected in a wide area to prevent gelling. Has been for decades. I've started my Duramax many times at -30F-40F after it's sat for days outdoors without th block heater without any gelling problems. Fires right up after the glow plug light went off and kept on ticking.

So unless your tanks is full from the summer or your coming from arizona in december and end up in montana with a full tank of fuel from arizona you won't have a gelling problem, period.

Even in western oregon, the fuel we get in portland starting about november is blended to not gel in eastern oregon in well below freezing temperatures.

koda55 wrote:
OTR trucks stop at many different truck stops to fuel and they have many different blends of diesel. Does anyone really think that they would fuel their trucks with the blends that are out there if they would hurt their engines. I have the Cummins ISL 400 in my 2008 rv and have not had any problems with the different blends. Do engine problems happen, of course. I don't think it is caused by the biodiesel. I am a retired otr driver and fueled many times with biodiesel and never had a problem.

OTR trucks do not have the same HPFP that the pickups do. Not even close.

Why do you think the engineers that designed the fuel system in my truck say do not use over B5 or your warrantee will be void?

Winter sun, DSL vehicles have had fuel warmers for a long time. My first was a 1985 and it had one. I ran B20 often in temps in the teens and never had a problem. That was in a 2010 Dodge. I never hesitate to fuel with bio blends and have never had an issue.