Same as a car.
Motorcycle Oil, it is advised to use 10w40 by suzuki. Brand would be your choice but make sure it's designed for motorcycles not car oil. Motorcycles have a wet clutch (Clutch rests in oil) cars do not.
type of oil does a suzuki intruder 650 take
all japanese, american made motorcycles have oil filters of some sort.usually a spin on filter
For stroke engine bikes use the engine oil as gear oil. In case of a two stroke engine you can use regular 80 W / 90 gear oil.
4 stroke 10w 40 weight oil. Use one for motorcycles...Castrol or Valvoline would work.
10w-40 specifically for motorcycles.
Best motorcycle oil is Castrol Go for almost all the motorcycles.
While any kind of "best" answer is debatable, you should get an oil designed specifically for motorcycles, and especially not one that is designed with additives for greater lubricity. This is because your motorcycle's clutch uses the oil and there is such a thing as too slippery.
Polaris Premium 4 Synthetic 10-40 or a good quality oil like Castrol Gtx for motorcycles some walmart stores carry it .
I use 20w- 50 non detergent oil for motorcycles in hot weather and 10w-40 The Maxim holds 3.7 quarts when you change the filter which I recommend highly.
You can use any 10 W 40 oil that is recommended for use in motorcycles.
most motorcycles do not have separate tranny fluid, the motor oil is also lube for tranny.