If you stay with the Yamalube, Yamaha experience in reliability is that they can offer a 20 year / 100,000 mile warranty! While few of us stay with Yamalube, just the offer says something.
https://www.yamahamotorsports.com/motorsports/news/article/2088/yamalube-announces-20-year-100-000-mile-limited-engine-warranty-on-yamaha-street-and-cruiser-motorcycles
https://www.yamahamotorsports.com/motorsports/news/article/2088/yamalube-announces-20-year-100-000-mile-limited-engine-warranty-on-yamaha-street-and-cruiser-motorcycles