Biodiesel Fuel (Bdf) - Kubota U17 Operator's Manual

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BIODIESEL FUEL (BDF)

B0-B20 Biodiesel fuels (BDF): mixed diesel fuels containing 20% or less biodiesel can be utilized
under the following conditions.
IMPORTANT :
l Refueling and handling fuel should be done with caution in order to avoid contact with the
fuel and spillage that could create a potential environmental or fire hazard. Wear appropriate
protective equipment when refueling.
u Applicable BDF:
1. Blended diesel fuels containing 6% thru 20% BDF (B6 - B20) which comply with American
Society for Testing and Materials (ASTM) D7467 Standard, as revised, can be used
without adversely affecting the performance and durability of the engine and fuel system
components.
2. Any mineral oil diesel fuel, if used, must conform to ASTM D975 (or the European EN590)
Standard, as revised.
B100 fuel used to make Biodiesel blended fuels must meet ASTM D6751 (or EN14214)
Standard, as revised.
The final blended fuel B20 must conform to ASTM D7467 Standard, as revised.
Straight vegetable oil is NOT allowed in any blended fuel.
3. Allowable blended fuel is mineral oil diesel fuel blended with B100 (i.e. 100% BDF).
The blended fuel ratio shall be less than 20% B100 and 80% or more diesel fuel.
The B100 source used for Biodiesel blends must be purchased from an accredited BQ-9000
marketer or producer.
More information about qualified marketer(s) and producer(s) can be found at http://www.
bq-9000.org.
u Preparation:
1. Before using BDF concentrations greater than B5, you are advised to replace the engine oil,
engine oil filter and fuel filter with new oil and filters. For replacement procedures, refer to
the "REGULAR CHECKS AND MAINTENANCE WORK" section.
u Product Warranty, Emission and Other Precautions:
1. The engine emission control system was certified according to current regulations based on
the use of non-BDF.
When using BDF, the owner is advised to check applicable local and federal emission
regulations and comply with all of them.
2. BDF may cause restricted or clogged fuel filters during cold weather conditions, resulting in
the engine not operating properly.
3. BDF encourages the growth of microorganisms which may cause degradation of the fuel.
This in turn may cause fuel line corrosion or reduce fuel filter flow earlier than expected.
4. BDF inherently absorbs moisture which may cause degradation of the fuel earlier than
expected.
To avoid this, drain the water separator and fuel filter port often.
5. Do not use Biodiesel concentrations higher than 20% (i.e. greater than B20).
Engine performance and fuel consumption will be affected, and degradation of the fuel
system components may occur.
6. Do not readjust the engine fuel control system as this will violate emission control levels for
which the equipment was approved.
7. Compared with soybean-based and rapeseed-based feedstock, palm oil-based feedstock
has a thicker consistency (i.e. higher viscosity) at lower temperatures.
Consequently, fuel filter performance may be reduced, particularly during cold weather
conditions.