Volvo Truck, Bus and Construction issues its own set of requirements for service fill engine oils for use in their vehicles and equipment. These specifications detail the viscosity grades, ACEA/API oil sequence and additional physical, chemical and engine testing that must be conducted in order to obtain an approval.
The first half of the Volvo specification name is always the same, “VDS,” which stands for Volvo Drain Specification. The second half is the specification number which are sequential to the specification release. Several examples of current Volvo specifications are written as Volvo VDS-3, Volvo VDS-4 and Volvo VDS-4.5.