This is my first Yamaha OB motor (S150) and heard around that Yamaha OB should be run with their yamalube oil. I have used Merc, Penzoil Synthetic on my Rude with no problem. I also have a fresh gl of walmart brand(have never used it yet).
Should I stick with Yamaha oil or are the other brands with the TCW-3 rating as good?
Should I stick with Yamaha oil or are the other brands with the TCW-3 rating as good?