Additive and Oil for merc 90 optimax?

[312inchmagnum]

Picked up a 2010 boat with a 90 mercury 2 stroke optimax. Wondering what the best oil is to run in it? Also, do you recommend any type of fuel additive also? I run ring free in my Yamaha. Didn't know if there was something similar for the optimax. Thanks.

[plki]

Merc or Quicksilver DFI oil and Quicklean

[SilverFox579]

Merc or Quicksilver DFI oil and Quicklean

+1 and I'd also add Quickare (or Quickstor as appropriate) to the fuel. Though your engine is a 1.5L, there is a tremendous amount of Optimax info in the FAQs at the top of the 2.5L & 3L forums, most of which applies to all Optimax engines. Here's one topic from the FAQ that covers oil and fuel additives, aka "Don's cocktail" - Oil, Battery, Spark Plugs, Fuel and Fuel Additive Recommendations

[312inchmagnum]

Thank you both!