I just bought a used pontoon boat to use in freshwater. It has a Yamaha 50hp 4 stroke OB. In reading the manual on-line, I see the 'suggestion' to use Yamalube oil, Ring Free Fuel Additive and Yamaha Fuel Conditioner and Stabilizer.
How important is it to use the Yamaha "recommended" products -vs- other brand products.?
What brand oil can I use (dino or synthetic) ?
Should I use the Ring Free Fuel additive when using 87 octane brand name gas with 10% ethanol.?
Can I use Sta-Bil Marine additive in lieu of Yamaha fuel stabilizer?
Thanks in advance