Kubota KX080-4S, Operator'S Manual

Page: 126 / 142

102 RECOMMENDED OILS
BIODIESEL FUEL (BDF)
B0-B20 Biodiesel fuels (BDF): mixed diesel fuels containing 20% or less biodiesel can be utilized under the following
conditions.
A
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.
C
Applicable BDF:
1. Blended diesel fuels containing 6% through 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 .
C
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.
C
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.
8. The KUBOTA Warranty, as specified in the Owner's Warranty Information Guide, only covers defects in product
materials and workmanship. Accordingly, any problems that may arise due to the use of poor quality fuels that fail to
meet the above requirements, whether biodiesel or mineral oil based, are not covered by the KUBOTA Warranty.
C
Routine handling:
1. Avoid spilling BDF onto painted surfaces as this may damage the finish.
If fuel is spilled immediately wipe clean and flush with soapy water to avoid permanent damage.
2. When using BDF, you are advised to maintain a full tank of fuel, especially overnight and during short term storage, to
reduce condensation within the tank. Be sure to tighten the fuel cap after refueling to prevent moisture build up within
the tank. Water in the Biodiesel mixture will damage fuel filters and may damage engine components.