stealer did my first oil change at 2500 mi, since then, every 5k with rotella t6 and a bosch 3323d- BTW walmart has both for about $30.

it's not recommended, but I changed the real drive oil at 8000mi and i did see the phosphate , thought it was ground up gears. 15k now, and all of it was hard riding. Don't think it's something to worry about. and you at least have a service history with mother honda. I'd chock up the $350 or so to showing that you at least want to protect your investment.