What gear oil to use in a 1967 Johnson CD-24D?

For a 1967 Johnson CD-24D outboard motor, it's recommended to use a 50:1 mix of high-quality two-stroke oil combined with premium gear oil, typically a SAE 90 weight, for the lower unit. Ensure to check the manufacturer's specifications for any specific oil recommendations or requirements for your model. Always replace the gear oil annually or after prolonged use to maintain optimal performance.