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 23, 2015 at 5:15 pm
#20708
There are a lot of people that swear by Sea Foam. Personally, I don’t think there is a problem if you use a quality TC-W3 oil that is CERTIFIED by NMMA and bears their logo. (Non) carbon deposits is one of the tests the oil must pass to get that certification.