Fuel specification
To get the correct power and performance from your engine, use good quality fuel. The recommended fuel
specification for Lovol engines is indicated below:
Cetane number--------------------50 minimum
Viscosity --------------------------2.5/4.5 cent at 40℃
Density-----------------------------0.835/0.855 kg/litre
Sulphur-----------------------------0.2% of mass, maximum
Distillation-------------------------85% at 350℃
Cetane number indicates ignition performance. A fuel with a low cetane number can cause cold start problems and
affect combustion.
Viscosity is the resistance to flow and engine performance can be affected if it is outside the limits.
Density: A lower density reduces engine power, a higher density increases engine power and exhaust smoke.
Sulphur: A high sulphur content (not normally found in Europe, North America or Australasia) can cause engine
wear. Where only high sulphur fuels are available, it is necessary to use a highly alkaline lubricating oil in
the engine or to renew the lubricating oil more frequently. See page 4.03
Distillation: This is an indication of the mixture of different hydrocarbons in the fuel. A high ratio of light-weight
hydrocarbons can affect the combustion characteristics.
Low temperature fuels Special winter fuels may be available for engine operation at temperatures below 0 . These ℃
fuels have a lower viscosity and also limit the wax formation in the fuel at low temperatures. If wax formation occurs,
this could stop the fuel flow through the filter.
If you need advice an adjustment to an engine setting or to the lubricating oil change periods which may be necessary
because of the standard of available fuel, consult your nearest Lovol distributor.
The selection of diesel firstly should be based on the environmental temperature at which diesel engine is to be used.
Light diesel with high pour point shall be used in hot south area; light diesel with low pour point shall be used in cold
north area.
The water content and mechanical impurity shall be as few as possible or else the early construction and part
corrosion in filter shall be occurred.
The pour point of diesel shall be less then the environmental temperature by at least 6-10 , thus to ensure the ℃
necessary flowability.
Under normal environmental temperature, No. 0-10 diesel may be chosen, for example, No. 10 light diesel can be
chosen and No. 3-5 diesel can be chosen in cold north. The specifications of light diesel made in china are listed in
table 2-1.
Specifications of light diesel
Distillation Temperature Viscosity
Name