Be careful. The TC-W3 is 9cSt at 100C and the TC-W is 10.4cSt. You're going to need a lot of oil compared to castor or other high viscosity synthetics. I'm sure Ugo can give a more specific answer. I'd be more incline to use the

The links are good. I made a spreadsheet to figure air/fuel ratios for different fuels a while back. Too bad the one page doesn't give that information. Unfortunately most of our engines are two stroke and have bore and stroke smaller than 29mm. Still interesting to play with, but you need some information we don't really have.