16 gallons
The oil capacity of the Honda Shadow VLX 600 is 2.1 liters. There will be a little more oil required to fill the oil filter at the oil change.
5w30 or 10w30
5w30 or 10w30
20w50
I have a 1999 Shadow 600 VLX, shouldn't be any different than yours, oil capacity is 2.38 quarts if you drain and change oil filter.
It takes 2.5 quarts without a filter change.
Any good JASO MA or MA2 approved motorcycle oil, 15-40 W.
2.8 liters without a filter change, 3 liters with a new oil filter.
3 liters.
Use any JASO-MA or MA2 approved oil of weight 10-40 W or 15 - 40 W.
This bike uses 2.38 quarts of engine oil.