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58 Maintenance and Service
DO NOT add extra oil additives. Additives such as break-in oils, top oils,
graphitizers, and friction-reducing liquids are not necessary and can harm the
engine.
Oil Change Intervals
The length of time an engine can operate before an oil change depends on the
quality oil used, the type of fuel used, fuel consumption, engine oil
consumption, vehicle application, level of dust in the air, and fuel
consumption. The change intervals given in this manual are maximum
intervals. If the vehicle is operating in heavy-duty operation, dusty or off-road
conditions, etc., reduce the intervals for more frequent oil changes. For the
correct oil change interval, see “Oil Capacity Tables and Viscosity Charts” on
page 108.
For additional information about oil change intervals, see your Volvo Truck
dealer. Also, refer to Bulletin 175-60, Oil and Filters, Volvo Components.
For a complete list of approved oils, see your Volvo Truck dealer. Also, refer
to Bulletin 175-61, Approved Oils, Volvo Components.
Oil filters should always be changed when changing oil.
Oil Filters
There are three filters on the engine, one of which is a bypass filter. This
should be changed at the same time as the full-flow filter(s).
Volvo branded oil filters are designed to provide the proper level of filtration
and protection for Volvo engines. Filters that do not meet the same stringent
requirements may void engine warranty.
USA22978.bk.book Page 58 Wednesday, July 9, 2008 9:09 AM