ZIC or Shell 10W-40 SN Plus
I've used VIC, its got expensive, now using whichever is found at oil change facility
Use as one recommended in manual, any brand would be ok, it just needs to be same grade
I guess you can use it. I've used cheap ones, currently some random brand water mixed, and now its about 80+ % water
I remember using Dot 4, its also mentioned on cap of break oil reservoir
Again see the manual, use same grade as mentioned, any brand.
Hope this helps,