Home › Forum › Ask A Member › Speeditwin 6039 Oil Considerations › Re: Speeditwin 6039 Oil Considerations
October 12, 2015 at 11:28 pm
#25462
Sent off an email to Amsoil last Thursday.
Provided a brief outline of engine design and application. Received reply today, well, it is a bit of a dead end in that first I should find out what was used in the past. The other suggestion was to use Amsoil’s HP marine at 40:1. But that was only his "guess".
Steve