New vehicles are properly lubricated at the factory and before they are delivered. After the vehicle is placed in operation, regular
lubrication intervals, as outlined, should be followed. Thorough lubrication at definite intervals will add greatly to the service life of the
vehicle and will reduce overall operating expense.
The interval between lubrication periods and oil changes depends entirely upon operating conditions, loads carried, speeds and
road and weather conditions. WHERE OPERATING CONDITIONS ARE EXTREMELY SEVERE, SUCH AS IN DEEP WATER, MUD,
OR UNUSUALLY DUSTY CONDITIONS, THE VEHICLE MAY REQUIRE LUBRICATION AFTER EVERY TWENTY-FOUR HOURS
Only lubricants of the best quality such as IH oil and lubricants, having proper body or viscosity, should be used. The use of
inferior products will reduce the service life of the vehicle or result in failure of its components.
The International Harvester Company Truck Group recommends the use of its regular IH oil and lubricants available through
your IH truck dealer.
The lubrication specifications refer only to the viscosity (SAE) and type to be applied. The viscosity numbers have been adopted
by the Society of Automotive Engineers to classify lubricants according to "body" or "thickness" and do not cover any other properties.
Unless otherwise specified, never add lubricant unless it is the same grade as that which is already in use. If the
grade is unknown or is not available, drain, flush and refill with new lubricant.
The Lubrication Intervals specified should be performed at whatever interval occurs first, whether it is months, miles