Volvo 780 Owner's Manual page 95

1987 Volvo 780
pg. 94 Engine oil
Oil quality
Meeting API specification SF
*Oils with designations SF/CC and SF/CD comply with these requirements.
Viscosity (stable ambient temperatures):
SAE 15W/40 is recommended for use in driving conditions that raise oil temperature and increase oil consumption i.e., mountain driving;
trailer towing.
Note: SAE 15W/40 must not be used at low ambient temperatures; see viscosity chart.
Volvo recommends the use energy-conserving oils. When using these oils, the Volvo recommended oil-change intervals must be followed.
Synthetic or semisynthetic oils may be used if their specifications comply with the oil equality requirements.
Volvo does not recommend additional oil additives, as they can adversely affect the engine.
Changing oil and oil filter
Oil and oil filter are first changed at the 600-1,200 mile (1,000-2,000 km) service. Thereafter, chances should be made as specified by this
table:
If driving conditions include:
Extended periods of idling and/or low-speed operation
Frequent short trips (less than 7 miles = 11 km)
Extended periods of driving in dusty and/or sandy
areas
Trailer towing
Driving mountainous areas
Primarily highway driving
Frequent trips of longer than 7 miles = 11 km
Volvo recommends the use of oils with the American Petroleum Institute (API) label. This label certified that the oil conforms to the
applicable standards and specifications of the API.
pg. 95 Servicing
Torque manifold nuts
file:///K|/ownersdocs/1987/1987_780/87780_07.htm (6 of 14)12/30/2006 7:56:32 AM
Then the correct oil/oil filter change interval
is:
EVERY 3 MONTHS
OR EVERY
5,000 miles = 8,000 km
WHICHEVER COMES FIRST
EVERY 6 MONTHS
OR EVERY
5,000 miles = 8,000 km
WHICHEVER COMES FIRST