I have a 2008 Merc 150 EFI 2 stroke-runs great. I use the plain merc 2 stroke oil-the one with the red
lettering. Been wondering if going to the premium plus which is a sythetic blend might be better. The guy I
bought the boat from said he thought keeping with the same oil would be better.
Last edited by kirbydog; 01/10/16 06:53 PM.
