Home › Forum › Ask A Member › oil › Re: oil
February 13, 2018 at 2:40 pm
#70977
Use the modern TCW3 rated oil of your choice/preference. Any modern oil with that rating will be much, much better for the motor than anything available way back when.
Most folks I know running 1920s iron use 8:1 ratio, or in that ballpark. It’s what I run in my ’28 Quad and Speedsters.