tgodiver You are correct the yamaha lube is big bucks when you compare it to other lubes out there.I just completed 10 hour break in on my 2003 yamaha 90hp and I am useing Yamaha M2 lube cost was $75.00 a case think I will stick with it.Don't forget the yamaha ring-free additive also $8.95 a pint but I have to say engine runs great