Home › Forum › Ask A Member › Correct fuel/oil ratio for mid 1950’s Johnson › Re: Correct fuel/oil ratio for mid 1950’s Johnson
July 22, 2015 at 10:50 pm
#20632
I’d follow the service manual and go 16:1. Even if newer oils are ‘better’ it’s not going to hurt. IMHO, a couple gallons of gas isn’t enough to cause any lasting damage.