SDMO R33C3, User And Maintenance Manual

Page: 24 / 244

2.5. Fuels, lubricants and coolants
All specifications (product features) are given in the engine and alternator maintenance manuals attached to this manual.
In addition to these, we recommend the fuels, lubricants and coolants mentioned in the "Specifications" section.
2.5.1 Fuel specifications
General quality requirements
The quality of the fuel is essential for engine performance. It affects the technical performances such as the service life, power supplied
and fuel consumption as well as the ability to respect the requirements issued by authorities relating to pollutant emissions.
Only fuels
which conform to the current legal requirements and national and international standards should be used . Consult the local
fuel distributor to find out the characteristics of the diesel fuel available in the area.
Examples of standards and requirements:
EN 590
European standard (CEN) for vehicle fuel - fuels for diesel engines (diesel fuel) -
requirements and test methods
ASTM D 975 1-D and 2-D
American Society for Testing and Materials: basic requirement in the United States and
Canada
JIS KK 2204 Japanese Industrial Standards: Japanese industrial standards
Respecting pollutant emissions
The certification measures confirming that the legal emission value limits are respected are performed with certified fuels which
conform to the standards and requirements stated above.
Resistance to low temperatures
When the external temperature is low, the fluidity of diesel fuel may no longer be sufficient due to paraffin deposits. Also, in the winter
in order to avoid malfunctions (for example, clogged filters), use diesel fuels which are fluid enough in cold weather.
The requirements to respect for the various geographical regions and various seasons (winter/summer) are specified in the standards
and/or national regulations. Petrol companies should always supply fuels with the correct flow properties regardless of the time of year.
In general, diesel fuel is treated with additives so that the fuel can be used at low temperatures in the region where it is marketed.
Treating fuel with additives must respect the engine manufacturer's recommendations and maintain a suitable lubricity for the injection
systems. It is recommended to favour fuels whose additives have been added in a refinery over those modified in the storage tank.
22/242