CrufflerJJ
ArboristSite Operative
Oh yay, an oil thread! This is an important, yet mostly un-discussed topic. I very much look forward to hearing what ratios people have problems with, and what ratios guarantee every part of your saw will last forever, including the chain tensioner and operator presence lever.
I find that my Husqvarna decals stay in place better with oil ratios of between 40:1 and 50:1. That's the main thing I look for in a used saw - decals. If the decal is in place, you're pretty well guaranteed that the piston/cylinder is nice & shiny.