Volvo VAH 2013, Operator'S Manual, Page: 93 / 175

Operator's Manual Vehicle Maintenance
VN, VHD 89
Synthetic Lubrication
Synthetic oils are offered by some oil suppliers as an alternative to the traditional,
petroleum based oils for engines. These oils may be used in VOLVO engines,
provided they meet the quality levels specified on the previous pages, that is: both
VDS-4 and EO-O Premium Plus.
The use of synthetic oils does not permit the extension of the recommended oil
change intervals. It is the contamination rate, i.e., soot, and the depletion of
additives, rather than base oil quality that determines the useful engine oil life
and therefore the oil change intervals.
Oil Viscosity
The viscosity grade defines the thickness of the oil. The oil must be thin enough at
low temperatures for easy cold starts and thick enough to protect at high temperatures.
An oil is not fully defined until both the API quality classification and the viscosity
grade are specified.
Choose the viscosity grade for the typical ambient temperature for the application.
Multigrade oils have a broad range that suit operation in changing temperature. The
standard oil weight for VOLVO engines is 10W/30.
VOLVO Trucks North America recommends the viscosities shown in the
viscosity/temperature table for VOLVO engines.
W1000144