I've an older bike and been using Rotella dino for 10 years. When valve covers come off the engine looks like new. Use good quality dino or synthetic, whatever the bike manufacturer stipulates is required, and then do regular oil and filter changes. In 40+ years, 10 bikes, a dozen cars and countless small engines I've never had a single engine issue, nor have I ever had engine wear where oil was consumed between oil changes. Don't obsess about the subtle differences between oils.