10w40 motorcycle oil only.
10w30
15-40 W motorcycle engine oil grade JASO-MA.
Normally, use a 15 W 40 oil of JASO MA or MA2 approved grade intended for motorcycles.
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.
According to alldata the recommend grade of oil is 5w30.
four stroke motorcyle oil
160ml
3 liters.
486 ml
5w20
16 gallons
best is 20w40 grade engine oil.