Re: Fuel and Lube Question

June 22, 2017 at 5:41 pm #60136

Anonymous

Mercury changed the amount of oil needed for motors made after WW2. All of these were full jeweled and Mercury said to use a 50 to 1 ratio of TCW3 Mercury oil. In the Merc gear case use John Deere corn head grease. The original seals were not made for the use of 90w gear oil.