Re: 1940 Johnson DT-10 5 hp color? Home › Forum › Ask A Member › 1940 Johnson DT-10 5 hp color? › Re: 1940 Johnson DT-10 5 hp color? keesInternational Member - 2 YearsReplies: 516Topics: 17 August 11, 2017 at 4:03 pm #62862 . DT-10………I think silver ??? about the Johnson KD-15 models,….they were painted green from 1946 ( found in the illustrated guide Johnson basic models ) .