9.8 ounces
I use Motul 10w40. Check with your local dealer.
you remove the GoldWing cover on the left side of the bike above the passenger foot pedal
3 1/2 quarts. There is a sight glass on the lower right side that shows the oil fullness.
If you look at the diff. you will see a drain plug and a re-fill plug. Check with your local dealer for the right oil.
Start with 3.2 Liters ( 3.4 US quarts ) then check the window. With the bike on the center stand, oil in, start the engine, have someone turn it off while you look in the window with a flashlite, as the engine is shut down you will see the oil move around and settle. That's the best way for these models.
7 QT
3.8 liters
18 Gallons
5qts with new filter.
5Qts. with new filter
16.2 gallons