It often makes me laugh, or maybe it is cry. People go out and buy an expensive motorcycle, fit it out with lots of expensive accessories, and then buy expensive matching clothing, helmets, boots and other fine items. Then when they need to top up the oil, they buy the cheapest oil they can find.
It is a bit like a NASA rocket launch failing because of a 10 cent component. Oil is what makes your motorcycle run smoothly, and putting in oil that is not meant for your bike is making sure that you will have a problem later on.
Just think about it. Every motorcycle model is different. Different in engine size, cylinder compression, cooling and a same motorcycle that lives in the desert is going to be different from one that live up up North in Canada.
Every aspect dictates what kind of oil you need to use. Your owner manual will tell you what kind of viscosity you need to use, but they will tell you a range. The viscosity will be determined as mentioned above on the displacement, the cylinder-head compression, horsepower, the kind of cooling used and most importantly, at what kind of revs your bike’s engine will run (you can understand that a motorcycle that runs at 12,000 rpm will need different oil than one that runs at 3,000 rpm).
The only thing you need to take into account, is the outside temperature and if your bike remains inactive for long periods of time. The viscosity grades are ranged from 0 to 60 (with 0 being the lowest viscosity). If you find the letter “W” after the grade, this implies that the oil can be used during the winter.
The other choice you can make, but you will need to read your owner’s manual attentively, is whether you use regular/mineral based oil, or synthetic. This can depend on the engine and the manufacturer, but often they will leave the choice up to you.
But whatever you select, select wisely. The last thing you will want is having your expensive motorcycle engine seize up while riding the freeway at 70 mph.