What is the proper quantity of oil to add to the engine when an oil and filter replacement is performed?
In the Owner’s Manual it states that the oil quantity for an oil change is 1.6 U.S. Quarts, and for an oil and filter change the oil quantity is 1.8 U.S. Quarts (page 42).
The Owner’s Manual (page 98) also notes to check the oil level by removing the control screw in the engine case while the engine is warm and the motorcycle is upright and vertical.
If 1.8 U.S. Quarts are added to the engine, once the old oil is drained and the filters cleaned or replaced, and the engine is run briefly and turned off to circulate the new oil, oil comes out of the control screw opening like the engine was overfilled. Approximately 0.4 U.S. Quarts are lost this way.
Has Husqvarna formally responded to this issue anywhere?