I keep a log on each vehicle. On the bike it's over the top.
I take pics of each and every oil change. Pics of the oil coming out, the new oil jugs stacked up empty, the filter, the magnetic oil plugs, and anything else that seems out of place. I print those pics.
The folder has a tab for each oil change of each bike. In each tab is a sheet protector, with a service log I fill out as I go. Behind that facing the other direction are the pics, and the reciept for the oil is between.
This is the service log I made for each service.
