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Discussion Boards > Active Subjects > Messages as Posted > Diesel Fuel Lubrication Engine Additives Forum

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 05-05-2008, 00:04 Post: 153442
bvance

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 Bio-Diesel

I have seen several threads here on diesel fuel and its additives etc. but I have not seen anything on Bio-Diesel.

Today I went to my local gas station to get some diesel for my 'Bota and noticed that they are only selling diesel that has 5% bio-diesel added. Anybody have any concerns with a small amount of added bio-diesel for tractors?

I always add the recommended Power Service, so my guess is that is OK to have a bit of bio-diesel addded.

Thoughts on this?

Brian






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 05-05-2008, 01:09 Post: 153443
candoarms



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 Bio-Diesel

Brian,

Bio-diesel is a very generic term. Bio-diesel can be produced from a wide range of different plants. Each type of plant produces a bio-diesel that has a particular set of characteristics.

Some plants produce a very heavy bio-diesel fuel, which will gel up at about 30 degrees above zero. Other plants produce fuels that will not be as greatly affected by cold weather. However, ALL BIO-DIESEL FUELS are inferior to petroleum based fuels when it comes to cold weather operation. Even with the best additives, and at the highest concentration levels recommended, bio-diesel fuels will gel up LONG BEFORE even the cheapest petro based fuels.

I wouldn't worry much about a 5% mixture of bio-diesel during the hotter summer months. However, I'd stay wide and clear of that stuff during the winter.

Take a look at the information contained at the link below. It helps explain a whole number of other issues involving bio-diesels that may be a cause for worry.

If you're interested in some other good reading, do a little research concerning which plants produce the best bio-diesel fuels. The quality of the fuels produced vary WIDELY......but good luck getting your supplier to tell you which plants were used to produce YOUR bio-diesel. He'll likely not have a clue.

Joel


Moderator edit: Murf fixed the bad link.






Link:   Bio-Diesel Fuel Cautions 

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 05-05-2008, 07:41 Post: 153450
greg_g



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 Bio-Diesel

A big concern about bio-diesel in older engines is the potential for clogging filters and injectors. It's related to a characteristic that actually cleans accumulated residue from the inside fuel delivery systems. In extreme cases, this can also lead to fuel leaks.

But that's at 100% "strength". I can't see any problem with burning a 5% blend After all, think about how many gasoline pumps have that same kind of sticker on them; "Contains 10% Ethanol". And the winter-summer thing would be a non-issue for me: Because of the ULSD I use Power Service year round anyway; silver jub in the summer, white (anti-gel) jug in the winter.

//greg//






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 05-05-2008, 08:26 Post: 153452
auerbach



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 Bio-Diesel

You can run a diesel on just about anything from peanut oil to used cooking oil to (so I'm told) vodka. Any "bio" additive does not have quite the punch of diesel, but you won't notice it at that dilution; it's the diesel equivalent of refiners diluting gasoline with a bit of ethanol. And if it comes from a commercial pump, you can be sure it's properly filtered and appropriate for the season. There's a better savings from searching out a supplier of off-road (meaning road-tax-free) diesel fuel.






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 05-05-2008, 09:38 Post: 153454
Murf

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 Bio-Diesel

The topic of road tax comes up here every so often.

The bottom line is that any diesel you buy any place for certain off-road uses, tractors are one of them, is road tax free. You just have to go through some hoops sometimes to make it so.

Generally speaking, every jurisdictions tax authority has provisions to refund the road tax on fuel purchased for qualifying off-road uses.

Contact your Provincial or State tax people and they will usually give you a form to complete, you attach copies of the receipts to the completed forms and they will send you a refund.

Best of luck.






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 05-05-2008, 10:24 Post: 153457
hardwood

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 Bio-Diesel

Other than #1, I don't think anyone around here has straight diesel anymore. I've ran the bio for a couple years now with white jug PS, and never had any problems even at ten below. Frank.






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 05-06-2008, 00:10 Post: 153467
bvance

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 Bio-Diesel

Thanks Guys.

I figured it would be OK, but thought I would ask all you knowledgeable experts out there. Thanks for your help.

Brian






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 05-06-2008, 08:34 Post: 153475
AnnBrush



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 Bio-Diesel

Quote:
Originally Posted by candoarms | view 153443
Some plants produce a very heavy bio-diesel fuel, which will gel up at about 30 degrees above zero.



This seems a bit of a strech to me - As the producer of this stuff you would open yourself up to all sorts of liability issues if your diesel gelled at 30F

"We had a frost, Oh and the diesel is gelled"






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 05-06-2008, 09:44 Post: 153480
candoarms



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 Bio-Diesel

AnnBrush,

I wasn't kidding about the high risk of gelling when using bio-diesels in cold weather.

Here's a report from the North Dakota Agriculture Extension Office regarding the use of bio-diesel fuels.

I've copied a small portion dealing with the cloud point of bio-diesel fuels.

________________________________________

"In cold weather, biodiesel begins to cloud and thicken at about 30F.

Biodiesel thickens at warmer temperatures than No. 2 diesel fuel, but additives are available that will lower the pour point. Pour point is the point at which flow of the fuel ceases.

Mixing biodiesel with No.1 diesel as is currently done with No. 2 will lower the pour point. Installing an in-tank or fuel line heater may also be needed to keep the fuel flowing in cold weather.

A blend of biodiesel/diesel fuel has a lower pour point than 100% biodiesel, but gelling may still occur unless care as mentioned earlier is taken."

_________________________________________

Note that the gel point is very high, at 30 degrees ABOVE zero. (Some Bio-diesel fuels (YG) gel at 48 degrees ABOVE zero!)

Please visit the link below.

Joel







Link:   Bio-Diesel Fuel Report 

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Discussion Boards > Active Subjects > Messages as Posted > Diesel Fuel Lubrication Engine Additives Forum

Thread 153442 Filter by Poster:
AnnBrush 1 | auerbach 1 | bvance 2 | candoarms 2 | greg_g 1 | hardwood 1 | Murf 1 |




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