Changing the engine oil and filter you would install 4 1/2 US Qts.
Need year and model in order to identify the transmission.
There are a number of places an Oil Leak can occur take your pick.
It takes 5w-30 oil
how much oil does an yamaha xt500 take
40w
It takes 6 Qts. of oil....
5 quarts
Semi synthetic 10/40 grade. Take your own pick on the make of oil.
A Honda CT110 will take 0.9 liters of oil
it should take 4.7 quarts with oil filter
10L
How much oil in a 7.5L 460 engine? It is in an RV