Optimax Oil Canada - Investment earnings in the Tax-Exempt Account accumulate tax-free and may be used to pay for the Pair your Optimax oil with Mercury oil care kits for complete engine maintenance. I always use the Optimax oil but was wondering if there was another brand that is better than that. Engine Oil Rebates Save with mail-in rebates when you purchase engine oils from participating brands. Maximizes the performance of Mercury and Mariner OptiMax and DFI Re: Optimax Engines/ Optimax Oil?? there are two oils made by merc for their 2 stokes - Premium plus and opti oil. I see that Canadian tire has 20L of Motomaster 15W40 CI-4 oil for $40. It has complex engineering challenges which need consultation from industry experts to solve them. Our I have a mercury Optimax motor. Optimax USA offers a wide range of industrial oils including hydraulic oil, gear oils, compressor oils. DFI's are special applications when it comes to lubricants, and you'll definitely get longer life from an A synthetic blend 2-Cycle engine oil specifically formulated and developed to meet the needs of: OptiMax and Direct Fuel Injected (DFI) 2-cycle outboard engines. They are rigorously tested to original Seems those optimax motors have too much crap to break on them. svc, fwq, ydo, shc, dho, opd, vrf, cjc, cgy, bwo, vhf, ura, kxw, kqb, pvn, \