I use it in my 98 Yamaha 60 HP. I as well moved on from yamalube. The XLF burns cleaner and smells better in my opinion. The Yamalube seemed to produce more combustion chamber deposits. Since moving on the XLF, the deposits visible through the plug holes have noticeably thinned. Another perk I have noticed (with no other changes) it seems to load up less. I like the change and wont be using yamalube again.
2012 Regal GS Turbo PP 5w30
1994 Camaro Z28 LT1 355 CI, 430 RWHP PP 5W30