Fayat Group BOMAG BW 213 D-5, Operating Instruction, Maintenance Instruction

Page: 140 / 222

8.3.1.2 Oil viscosity
Since engine oil changes its viscosity with the
temperature, the ambient temperature at the
operating location of the engine is of utmost
importance when choosing the viscosity class
(SAE-class).
Only use multi-purpose oils.
The temperature indications of the SAE-class
always refer to fresh oils. In travel operation
engine oil ages because of soot and fuel resi-
dues. This adversely affects the properties of
the engine oil, especially under low ambient
temperatures.
Optimal operating conditions can be achieved
by using the oil viscosity chart as a reference.
8.3.1.3 Oil change intervals
If the oil change intervals are not reached over
a period of one year, the oil change should be
performed at least 1 x per year, irrespective of
the operating hours reached.
The oil change interval must be halved if at
least one of the following conditions applies:
n Permanent ambient temperatures below
-10 °C (14 °F)
n Engine oil temperatures below 60 °C
(84 °F).
n Sulphur content in fuel exceeding 0.5 %
Fig. 105: Oil viscosity dia-
gram
Maintenance – Fuels and lubricants
BW 213 D-5 140