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3 Engine Operation
Proper use of your engine can not only keep it in normal working order and good performance, but also can extent its
service life and reduce its use cost. Adopt proper fuel, oil and coolant, as well as the correct operation steps stipulated
in this section.
3.1 Fuel
The specifications of the fuel used for the engine should be in accordance with the standards GB 19147. Proper fuel
designation should be chosen for the engine according to ambient temperature. In cold winter, fuel with
low-freezing-point should be adopted, while contrary in summer. You may choose the right fuel according to the
standards GB 19147, or refer to the table below: e.g. for ambient temperature of above -27ć, fuel with the
designation of -35# should be used.
Relationship between diesel fuel grades and applicable minimum temperatures
Designation of fuel 0# -10# -20# -35#
Cetane value
49 49 46
45
Solid point/ć
0 -10 -20 -35
Minimum applicable
temperature (engine working
temperature)/ć
Above 4ć Above -5ć Above -14ć Above -29ć
Caution: Fuel must be kept at the highest level of cleanness and not polluted by dust, impurities or water.
3.2 Lubricating oil
AGG-designated special lubricating oil of grade CH-4 and above is strongly recommended for this engine in order to
ensure its normal operation and long service life and improve its emissions. If the above lubricating oil is not available,
oil of CH-4 grade or above meeting the requirements of American Petroleum Institute (API) can serve as an
alternative.
Relation of viscosity grade and ambient temperature range
Ambient temperature
Viscosity grades of SAE oil
Minimum Maximum
0W-40 -50ć 40ć
5W-20 -40ć 30ć
5W-40 -40ć 40ć
10W-30 -30ć 30ć
10W-40 -30ć 40ć
10W-60 -30ć 60ć
15W-40 -20ć 40ć
20W-50 -10ć 50ć
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Caution: Lubricating oil must be kept clean and free from dust, impurities or water.
Caution: Do not use the mixture of oil of different specifications.
3.3 Coolant
In order to ensure the normal operation and long service life of the engine, use coolant with functions of anti-freeze,
anti-rust and anti-corrosion at any weather condition.
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