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© Scania CV 2011
Fuel
Diesel
The composition of the diesel is very important for the operation and service
life of the engine and injection system. The engine output and exhaust
emissions are also dependent on the fuel quality. The requirements and
testing standards for the most important properties are described in the
Workshop Manual in sections which can be ordered from Scania dealers or
directly from Scania. Scania's address is printed on the cover.
Diesel must comply with the following standard: EN 590 (European
standard).
The table below shows the requirements for some of the most important
properties.
Biofuel (low sulphur fuels)
There are 3 different classes of biofuels (SS15 54 35).
Class 1 is sulphur-free and class 2 is low in sulphur. Compared with class 3
(normal fuel), these fuels are less dense and this reduces engine power. Only
class 1 fuel should be used with a catalytic converter.
Short term use of fuel with a higher sulphur content than 0.05% by weight
will not cause permanent damage to the catalytic converter.
The catalytic converter may, however, require fuel with a low sulphur content
for some time after this to regain its normal efficiency.
Property
Requirements
Viscosity at 40°C
2.0-4.5 mm
2
/s (cSt)
Density at 15 °C
0.82-0.86 kg/dm³
Sulphur (concentration by mass)
max 0.3%
Ignitability (CET rating)
min. 49
Flashpoint
56°C
