Choices with Outboard Oil
Everyone who owns a boat has a slightly different opinion on what type of oil will work best in their motor. My uncle, for example, only relies on oil that has the same brand name as the boat motor that he is using. He won’t use oil that isn’t listed in the manual for the motor. My cousin is not nearly as picky with his oil.
Whenever he needs to get outboard oil, he will simply find TC-W3 oil, but is not necessarily brand name oil. Over time, he often has had to decarb his engine, because these oils don’t burn as cleanly as brand name ones do. My uncle prefers to just get better prices by buying in bulk.