Reply To: Gear oil in a 1982 Evinrude 7.5

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April 22, 2023 at 7:29 pm #275434
JOSEPH BRINCAT
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    Oh’and another thing while we are on the subject.  API GL 5 and likely GL 4 is OK. Do not use GL 6 as this has a sulfur compound additive that attacks brass/ bronze parts that are in many (all ?) of our outboard gear cases.

    Joe B