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  1. 05-19-2025, 06:00 PM #1
    JP Triton
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    Mixing Mercury Original Optimax Synthetic Blend oil with the new Optimax blend

    Is it okay to mix the Original Optimax Synthetic Blend oil (part number 92-858037K01) with the new Optimax Synthetic Blend Oil (part number) 8M0229798) in the reservoir? The original oil was dark brown/reddish in color and the new blend is an amber color.

    I was not aware Mercury changed the Optimax 2 Stroke oil blend when I went to pour in some additional oil and freaked out when the color was amber. I thought I bought the wrong oil cuz it looked like normal engine oil.
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  2. Savage
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    #2 05-19-2025, 07:01 PM
    Yes


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  3. EuropeanAM
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    #3 05-19-2025, 08:22 PM
    Not a "blend change". Rather a "BLENDER change".


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  4. Arctic cat 1000
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    #4 05-20-2025, 09:14 PM
    I did an experiment and have both oils to test with. I mixed them in a cup together before adding the new opti oil into the tank. Just to make sure. They did just fine and mixed perfectly. I also mixed the old DFI oil with some penzoil XLF and I’d didn’t like it. Formed some weird buildup and really never mixed that well. I was about to switch to penzoil but now that the new DFI oil is out. I’ll stay with merc oil.
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