Get an owner's manual - there should be one around to download.
That will tell you oil types, quantities and weights and service intervals. Best to change the filter as well. No need to spend silly money on expensive oils as long as what you buy is reasonable quality. Stay with motorcycle oils as some car oils have friction modifiers that will make the bike clutch slip, and some car oils break down when they have to lubricate a gearbox as well as the engine. Do an oil change every year if you only do a low mileage and/or store for the Winter. From memory it's about 2 litres of a 10W40 for an oil change. Check the level in the sight window with the bike upright
Lots of choices about chain lube. It's more about regular cleaning. Don't use WD-40 as a luricant. I prefer to fit a Scott Oiler, but if you don't commute or ride in the wet it's probably not needed.
For the rest of the bike, a drop of engine oil or a light oil such as a bicycle oil on all the pivots and moving bits.