1996 E300 biodiesel preparation? - Mercedes-Benz Forum

 
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1996 E300 biodiesel preparation?


1996 E300 Biodiesel preparation?
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Hi - I recently purchased a 1996 E300 diesel (no turbo) that I'd soon like to convert to run on B100 biodiesel fuel. I've done research and the consensus is that all diesels are B2 (2%) and B20 (20%) ready. Biodiesel is good for the engine, mostly better for the environment, can drastically reduce, if not eliminate, dependence on expensive and dangerous petroleum supplies and is good for agriculture economy (biodiesel is based on soy and corn based oils).

Has anyone out there tried this? Where can I get replacement fuel system hoses that won't degrade from exposure to biodiesel fuel?

Here's info that I've gathered:
Biodiesel Myths and Facts
Myth: Biodiesel is an experimental fuel and has not been thoroughly tested.
Fact: Biodiesel is one of the most thoroughly tested alternative fuels on the market. A
number of independent studies have been completed with the results showing
biodiesel performs similar to petroleum diesel while benefiting the environment and
human health compared to diesel. That research includes studies performed by the
U.S. Department of Energy, the U.S. Department of Agriculture, Stanadyne Automotive
Corp. (the largest diesel fuel injection equipment manufacturer in the U.S.), Lovelace
Respiratory Research Institute, and Southwest Research Institute. Biodiesel is the first and
only alternative fuel to have completed the rigorous Health Effects testing requirements
of the Clean Air Act. Biodiesel has been proven to perform similarly to diesel in more 50
million successful road miles in virtually all types of diesel engines, countless off-road
miles and countless marine hours. Currently more than 300 major fleets use the fuel.
Myth: Biodiesel does not perform as well as diesel.
Fact: One of the major advantages of biodiesel is the fact that it can be used in
existing engines and fuel injection equipment with little impact to operating
performance. Biodiesel has a higher cetane number than U.S. diesel fuel. In more than
50 million miles of in-field demonstrations, B20 showed similar fuel consumption,
horsepower, torque, and haulage rates as conventional diesel fuel. Biodiesel also has
superior lubricity and it has the highest BTU content of any alternative fuel (falling in the
range between #1 and #2 diesel fuel).
Myth: Biodiesel doesn't perform well in cold weather.
Fact: Biodiesel will gel in very cold temperatures, just as the common #2 diesel does.
Although pure biodiesel has a higher cloud point than #2 diesel fuel, typical blends of
20% biodiesel are managed with the same fuel management techniques as #2 diesel.
Blends of 5% biodiesel and less have virtually no impact on cold flow.
Myth: Biodiesel causes filters to plug.
Fact: Biodiesel can be operated in any diesel engine with little or no modification to
the engine or the fuel system. Pure biodiesel (B100) has a solvent effect, which may
release deposits accumulated on tank walls and pipes from previous diesel fuel use.
With high blends of biodiesel, the release of deposits may clog filters initially and
precautions should be taken to replace fuel filters until the petroleum build-up is
eliminated. This issue is less prevalent with B20 blends, and there is no evidence that
lower-blend levels such as B2 have caused filters to plug.
Myth: A low-blend of biodiesel in diesel fuel will cost too much.
Fact: Using a 2% blend of biodiesel is estimated to increase the cost of diesel by 2 or 3
cents per gallon, including the fuel, transportation, storage and blending costs. Any
increase in cost will be accompanied by an increase in diesel quality since low-blend
levels of biodiesel greatly enhance the lubricity of diesel fuel.
Myth: Biodiesel causes degradation of engine gaskets and seals.
Biodiesel Myths and Facts
Fact: The recent switch to low-sulfur diesel fuel has caused most Original Equipment
Manufacturers (OEMs) to switch to components that are also suitable for use with
biodiesel. In general, biodiesel used in pure form can soften and degrade certain types
of elastomers and natural rubber compounds over time. Using high percent blends can
impact fuel system components (primarily fuel hoses and fuel pump seals) that contain
elastomer compounds incompatible with biodiesel, although the effect is lessened as
the biodiesel blend level is decreased. Experience with B20 has found that no changes
to gaskets or hoses are necessary.
Myth: No objective biodiesel fuel formulation standard exists.
Fact: The biodiesel industry has been active in setting standards for biodiesel since
1994 when the first biodiesel taskforce was formed within the American Society for
Testing and Materials (ASTM). ASTM approved a provisional standard for biodiesel
(ASTM PS 121) in July of 1999. The final specification (D-6751) was issued in December
2001. Copies of specifications are available from ASTM at http://www.astm.org.
Myth: Biodiesel does not have sufficient shelf life.
Fact: Most fuel today is used up long before six months, and many petroleum
companies do not recommend storing petroleum diesel for more than six months. The
current industry recommendation is that biodiesel be used within six months, or
reanalyzed after six months to ensure the fuel meets ASTM specifications (D-6751). A
longer shelf life is possible depending on the fuel composition and the use of storageenhancing
additives.
Myth: Engine warranty coverage would be at risk.
Fact: The use of biodiesel in existing diesel engines does not void parts and materials
workmanship warranties of any major US engine manufacturer.
Myth: The U.S. lacks the infrastructure to prevent shortages of the product.
Fact: There are presently more than 14 companies that have invested millions of dollars
into the development of the biodiesel manufacturing plants actively marketing
biodiesel. Based on existing dedicated biodiesel processing capacity and long-term
production agreements, more than 200 million gallons of biodiesel capacity currently
exists. Many facilities are capable of doubling their production capacity within 18
months.
Myth: There is no government program to support development of a biodiesel industry.
Fact: The U.S. Department of Agriculture announced in January 2001 the
implementation of the first program providing cost incentives for the production of 36
million gallons of biodiesel. Bills supporting the use of biodiesel and ethanol were also
introduced to the U.S. Congress in 2003, including one that would set a renewable
standard for fuel in the U.S. and one that would give biodiesel a partial fuel excise tax
exemption. More than a dozen states have passed favorable biodiesel legislation.
Biodiesel Myths and Facts
More information is available on the NBB Web site at www.biodiesel.org.
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