DV11
Operation and Maintenance
27
Technical Information
Printed in Mar. 2005 PS-MMA0608-E1A
2.3.14. Fuel requirements
z DOOSAN diesel engines was designed to use Number 2-D diesel fuel or
equivalent that meets specification
ASTM D (Grade Low Sulfur). For maximum fuel
economy, Number 2-D fuel whenever possible. When temperatures are below -7
°C, use Number 1-D fuel. If Number 1-D fuel is not available, the mixture of one
kerosene to two gallons of Number 2-D fuel can be used. Once kerosene has
been added, the engine should be run for several minutes to mix the fuel.
2.3.15. How to select fuel oil
z Fuel quality is an important factor in obtaining satisfactory engine performance,
long engine life, and acceptable exhaust emission levels. DOOSAN engines are
designed to operate on most diesel fuels marketed today. In low sulfur, fuels
meeting the properties of ASTM Designation D975 (grades 1-D and 2-D : Grade
Low Sulfur) have provided satisfactory performance.
z The ASTM 975 specification, however, does not in itself adequately define the
fuel characteristics needed for assurance of fuel quality.
z The properties listed in the fuel oil selection chart below have provided optimum
engine performance. Grade 2-D fuel is normally available for generator service.
Grade 1-D fuel should not be used in pleasure craft engines, except in an
emergency.
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