Oil, politics, religion. Sure to get replies. Also, top speed and the best way to polish chrome.
My homelite blower motor used 50:1 (any old kind) with no problem. I just switched to Amsoil Saber (80:1) just to keep things cleaner. I don't expect any miracles.
After reading the previous threads, I will say this...
I wouldn't use marine oil - like matt and 2door said.
City of angels mentioned using 20:1 for the first 2 gallons, then 32:1. That sounds like someone going through a new-motor break-in. I've always heard to NOT use synthetic while breaking-in.
If synthetic really prevents wear so much that a motor will not break-in properly, it must be great for a broke-in motor, eh?