12.11
Diesel engine fuels
12.11.1
General
Almost all mineral residual and distillate and some renewable fuels can be burned in a diesel
engine if applicable procedures are done. But, the quality of the fuel will have an effect on the
frequency of overhauls and the work necessary to prepare the fuel. It is the primary economic
considerations that according to the type, size and speed of the engine and its application, gives
the fuel quality margins.
Gas oils and diesel oils (distillates) can be used in all WinGD engines with some limits. WinGD 2-
stroke diesel engines are designed to operate on up to 700 mm
2
/s (cSt) at 50°C viscosity heavy
fuel oil (ISO 8217:2017 RMK 700 grade) if sufficient fuel heating and treatment is done.
Heavy fuel oil must have treatment in an applicable fuel treatment plant. When bunkering, it is
possible that the fuel suppliers will report only some of the values given in the Quality
Specifications. Frequently, only the density and maximum viscosity is given. This makes the full
understanding of the properties of the fuels very difficult, thus it is important to get a full certificate
of analysis with each bunker.
The supplier must guarantee the stability of the fuel, ie resistance to the formation of sludge. Also,
the fuel must not have a corrosive effect on the injection equipment and must not contain used
lubricating oil or chemical waste.
Fuels from different bunkers must not be mixed because there is a risk that the fuels will have
different compositions (eg this can cause fouling of filters or too much sludge, which will overload
the fuel preparation equipment). Fresh bunkers must always be put into empty tanks and not on
top of old bunkers.
X52
AA00-0000-00AAA-030A-A
Operation Manual
Diesel engine fuels
Winterthur Gas & Diesel Ltd.
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Issue 002 2018-11