Any chainsaw / firewood cutting experts on here?

Yup. 100%. I'd run nothing but Motomix in it if I didn't have so much to cut.

This is what I run. That's a good deal on a case of six.

https://www.amazon.com/TruFuel-2-Cy...hvlocphy=&hvtargid=pla-4583932699667304&psc=1