Firstly, what grade of oil is recomennded for it? its done just on 100k so im unsure as to what it would use, and i only ask because i had trouble with my previous car because everytime it was serviced a different grade of oil was used, and i just want to make sure i get it right this time

And lastly what are some of the more common problems and repairs you'd normally have to do to them?
Any help would be great!
Regards,
Kyle