Max Gear 75w90 would be good if you can't find Evinrude HPO lower unit oil.

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Time to change the lower unit oil on my '98 Evinrude Ficht. Any recommendations on what brand/weight oil to use? Is there a specific weight oil different brands of engines or is lower unit oil lower unit oil?
Max Gear 75w90 would be good if you can't find Evinrude HPO lower unit oil.
This has always worked for me. Pennzoil Marine High Viscosity Lower Unite Gear Lube SAE 80W-90
Thanks
as some are not designed for bigger motors. Mercury high performance lower unit oil would be a good choice if not using Evinrude oil or Royal purple which is a full synthetic oil as well.
